Limited Internal
TABLE OF CONTENTS 1 (1)
Prepared (also subject responsible if other) No.
SEC/S Kevin Zhou 001 52-EN/LZT 146 308 Uen
Approved Checked Date Rev Reference
2007-5-14 E
Contents
General Information ............................................................. 2
Safety Specification ............................................................. 3
Absolute Maximum Ratings ............................................................. 4
Product Program Ordering No.
1.2 V/25 A Electrical Specification PKU 4318L PI ...................................... 5
1.5 V/25 A Electrical Specification PKU 4318H PI ...................................... 8
1.8 V/25 A Electrical Specification PKU 4418G PI .................................... 11
2.5 V/15 A Electrical Specification PKU 4319 PI ....................................... 14
3.3 V/15 A Electrical Specification PKU 4510 PI ....................................... 17
5.0 V/10 A Electrical Specification PKU 4511 PI ....................................... 20
12.0 V/4.2 A Electrical Specification PKU 4513 PI ....................................... 23
15.0 V/3.3 A Electrical Specification PKU 4515 PI ....................................... 26
EMC Specification ........................................................... 29
Operating Information ........................................................... 30
Thermal Consideration ........................................................... 32
Connections ........................................................... 33
Mechanical Information ........................................................... 34
Soldering Information ........................................................... 36
Delivery Information ........................................................... 37
Product Qualification Specification ........................................................... 38
Ericsson Internal
PRODUCT SPECIFICATION 1 (3)
Prepared (also subject responsible if other) No.
SEC/S Kevin Zhou 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/S Kevin Zhou MICPJWI 2007-1-19 D
Key Features
• Industry standard Sixteenth-brick
33.02 x 22.86 x 9.90 mm (1.3 x 0.9 x 0.39 in.)
• Wide output adjust, e.g. 3.3V +10/-40%
• 1500 Vdc input to output isolation
• Meets isolation requirements equivalent to basic
insulation according to IEC/EN/UL 60950
• More than 1.61 million hours MTBF
General Characteristics
• Pre-biased start-up capability
• Output over voltage protection
• Input under voltage shut-down
• Over temperature protection
• Monotonic start-up
• Output short-circuit protection
• Remote sense
• Remote control
• Output voltage adjust function
• Highly automated manufacturing ensures quality
• ISO 9001/14001 certified supplier
Safety Approvals Design for Environment
Meets requirements in high-
temperature lead-free soldering
processes.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
Ericsson Internal
PRODUCT SPECIFICATION 2 (3)
Prepared (also subject responsible if other) No.
SEC/S Kevin Zhou 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/S Kevin Zhou MICPJWI 2007-1-19 D
General Information
Ordering Information
See Contents for individual product ordering numbers.
Option Suffix Ordering No.
Isolated Surface mount
Isolated Through-hole
Positive Remote Control Logic
Lead length 3.69 mm (0.145 in)
SI
PI
P
LA
PKU 4510 SI *
PKU 4510 PI
PKU 4510 PIP
PKU 4510 PILA
Note: As an example a through-hole mounted, positive logic, short pin
product would be PKU 4510 PIPLA.
* Samples available on request.
Reliability
The Mean Time Between Failure (MTBF) is calculated at full
output power and an operating ambient temperature (TA) of
+40°C, which is a typical condition in Information and
Communication Technology (ICT) equipment. Different
methods could be used to calculate the predicted MTBF
and failure rate which may give different results. Ericsson
Power Modules currently uses Telcordia SR332.
Predicted MTBF for the series is:
- 1.61 million hours according to Telcordia SR332, issue
1, Black box technique.
Telcordia SR332 is a commonly used standard method
intended for reliability calculations in ICT equipment. The
parts count procedure used in this method was originally
modelled on the methods from MIL-HDBK-217F, Reliability
Predictions of Electronic Equipment. It assumes that no
reliability data is available on the actual units and devices
for which the predictions are to be made, i.e. all predictions
are based on generic reliability parameters.
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products include:
- Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
- Lead in glass of electronics components and in
electronic ceramic parts (e.g. fill material in chip
resistors)
- Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins
made of Brass)
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, 6σ (sigma), and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of our products.
Warranty
Warranty period and conditions are defined in Ericsson
Power Modules General Terms and Conditions of Sale.
Limitation of Liability
Ericsson Power Modules does not make any other
warranties, expressed or implied including any warranty of
merchantability or fitness for a particular purpose
(including, but not limited to, use in life support
applications, where malfunctions of product can cause
injury to a person’s health or life).
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
2
Ericsson Internal
PRODUCT SPECIFICATION 3 (3)
Prepared (also subject responsible if other) No.
SEC/S Kevin Zhou 1/1301-BMR 602 Uen
Approved Checked Date Rev Reference
SEC/S Kevin Zhou MICPJWI 2007-1-19 D
Safety Specification
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL60950,
Safety of Information
Technology Equipment
.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazards:
• Electrical shock
• Energy hazards
• Fire
• Mechanical and heat hazards
• Radiation hazards
• Chemical hazards
On-board DC-DC converters are defined as component
power supplies. As components they cannot fully comply
with the provisions of any Safety requirements without
“Conditions of Acceptability”. It is the responsibility of the
installer to ensure that the final product housing these
components complies with the requirements of all
applicable Safety standards and Directives for the final
product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 and
UL60950
“Safety of information technology equipment”.
There are other more product related standards, e.g.
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but
all of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL60950 recognized and certified in
accordance with EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use
equipment, in accordance with the requirements of the
ultimate application. Normally the output of the DC/DC
converter is considered as SELV (Safety Extra Low
Voltage) and the input source must be isolated by
minimum Double or Reinforced Insulation from the primary
circuit (AC mains) in accordance with IEC/EN/UL60950.
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating
twice the maximum input current per selected product be
used at the input of each DC/DC converter. If an input filter
is used in the circuit the fuse should be placed in front of
the input filter.
In the rare event of a component problem in the input filter
or in the DC/DC converter that imposes a short circuit on
the input source, this fuse will provide the following
functions:
• Isolate the faulty DC/DC converter from the input
power source so as not to affect the operation of
other parts of the system.
• Protect the distribution wiring from excessive
current and power loss thus preventing
hazardous overheating.
The galvanic isolation is verified in an electric strength test.
The test voltage (Viso) between input and output is
1500 Vdc or 2250 Vdc for 60 seconds (refer to product
specification).
Leakage current is less than 1 µA at nominal input voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to Ericsson Power Modules DC/DC
converter is 75 Vdc or less, then the output remains SELV
(Safety Extra Low Voltage) under normal and abnormal
operating conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connected to
demonstrate that the input voltage does not exceed
75 Vdc.
If the input power source circuit is a DC power system, the
source may be treated as a TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation in accordance
with IEC/EN/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
3
Ericsson Internal
PRODUCT SPECIFICATION 1 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/5
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
Absolute Maximum Ratings
Characteristics min typ max Unit
Tref Operating Temperature (see Thermal Consideration section) -45 +110 °C
TS Storage temperature -55 +125 °C
VI Input voltage -0.5 +80 V
Viso Isolation voltage (input to output test voltage) 1500 Vdc
Vtr Input voltage transient (tp 100 ms) 100 V
Positive logic option -0.5 25 V
VRC Remote Control pin voltage
(see Operating Information section) Negative logic option -0.5 25 V
Vadj Adjust pin voltage (see Operating Information section) -0.5 6 V
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are
normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and
performance may degrade in an unspecified manner.
Fundamental Circuit Diagram
Bias supply
and OTP Isolated
Feedback
Primary
Driver
+ In
RC
- In
+ Out
Secondary
Driver
Control and
Supervision
+ Sense
- Sense
- Out
V
adj
Primary Secondary
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
4
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/5
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.2 V/25 A Electrical Specification PKU 4318L
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 34.5 V
CI Internal input capacitance 0.5
μF
PO Output power Output voltage initial setting 0 30 W
50 % of max IO 83.5
max IO 82.5
50 % of max IO , VI = 48 V 84
η Efficiency
max IO , VI = 48 V 83
%
Pd Power Dissipation max IO 6.3 10 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.13 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 1.176 1.20 1.224 V
Output adjust range See operating information 1.00 1.32 V
Output voltage tolerance band 0-100 % of max IO 1.16 1.24 V
Idling voltage IO = 0 A 1.18 1.22 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 5 10 mV
Vtr Load transient
voltage deviation ±160 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 7 A/μs,
25 50 μs
tr Ramp-up time
(from 10−90 % of VOi) 5 6 7 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
9 10 11 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 0.3 0.7 1.0 ms
RC start-up time max IO 5 ms
max IO 0.5 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 0.5 ms
IO Output current 0 25 A
Ilim Current limit threshold Tref < max Tref 26 31 35 A
Isc Short circuit current Tref = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 70 130 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 1.55 V
Note 1: See Operating information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
5
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/5
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.2 V/25 A Typical Characteristics PKU 4318L
Efficiency Power Dissipation
65
70
75
80
85
90
0 5 10 15 2 0 2 5 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 20 25 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
5
10
15
20
25
30
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
0.00.51.01.52.02.53.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
1. 10
1. 15
1. 2 0
1. 2 5
1. 3 0
0 5 10 15 2 0 2 5 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
16 18 20 22 24 26 28 30 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
6
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/5
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.2 V/25 A Typical Characteristics PKU 4318L
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 20 V/div.).
Time scale: ( 5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (6.25 - 18.75 - 6.25 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 10 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1 %10020.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.248Vdc
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 410020.111.5 kΩ = 128 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 1.176 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 20.1 20.1
45.2225.1 Vdesired
Vadj V
Example: Upwards => 1.30 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 20.1 20.130.1
45.2225.1 V = 1.43 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 20.1 20.100.1
45.2225.1 V = 0.82 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
7
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/2
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.5 V/25 A Electrical Specification PKU 4318H
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
See Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 μF
PO Output power Output voltage initial setting 0 37.5 W
50 % of max IO 86
max IO 85
50 % of max IO , VI = 48 V 86
η Efficiency
max IO , VI = 48 V 85
%
Pd Power Dissipation max IO 6.7 10 W
Pli Input idling power IO = 0 A, VI = 53 V 2 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 1.47 1.50 1.53 V
Output adjust range See operating information 1.00 1.65 V
Output voltage tolerance band 0-100 % of max IO 1.455 1.545 V
Idling voltage IO = 0 A 1.48 1.52 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 5 10 mV
Vtr Load transient
voltage deviation ±120 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 7 A/μs,
15 50 μs
tr Ramp-up time
(from 10−90 % of VOi) 3.5 5 6 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
7 9 10 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 0.7 ms
RC start-up time max IO 5 ms
max IO 0.6 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 0.65 ms
IO Output current 0 25 A
Ilim Current limit threshold Tref < max Tref 26 31 35 A
Isc Short circuit current Tref = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 80 150 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 1.9 V
Note 1: See Operating information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
8
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/2
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.5 V/25 A Typical Characteristics PKU 4318H
Efficiency Power Dissipation
70
75
80
85
90
95
0 5 10 15 20 25 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 20 25 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
5
10
15
20
25
30
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0
[
m/s
]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
1. 4 0
1. 4 5
1. 5 0
1. 5 5
1. 6 0
0 5 10 15 20 25 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1. 0 0
1. 5 0
2.00
16 18 20 22 24 26 28 30 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
9
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4318/2
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.5 V/25 A Typical Characteristics PKU 4318H
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 20 V/div.).
Time scale: ( 5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (6.25 - 18.75 - 6.25 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 10 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1 %10050.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.56 Vdc
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 410050.111.5 kΩ = 24.7 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 1.47 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 50.1 50.1
45.2225.1 Vdesired
Vadj V
Example: Upwards => 1.60 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.1 50.160.1
45.2225.1 V = 1.39 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.1 50.100.1
45.2225.1 V = 0.41 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
10
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4418/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.8 V/25 A Electrical Specification PKU 4418G
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 34.5 V
CI Internal input capacitance 0.5 μF
PO Output power Output voltage initial setting 0 45 W
50 % of max IO 86.4
max IO 86.0
50 % of max IO , VI = 48 V 86.8
η Efficiency
max IO, VI = 48 V 86.3
%
Pd Power Dissipation max IO 7.3 11.5 W
Pli Input idling power IO = 0 A, VI = 53 V 2.4 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 1.764 1.80 1.836 V
Output adjust range See operating information 1.00 1.98 V
Output voltage tolerance band 0-100 % of max IO 1.75 1.85 V
Idling voltage IO = 0 A 1.77 1.82 V
Line regulation max IO 5 12 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 4 10 mV
Vtr Load transient
voltage deviation ±120 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 7 A/μs,
20 50 μs
tr Ramp-up time
(from 10−90 % of VOi) 3.5 5 6 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
7 9 10 ms
max IO 0.05 0.1 0.2 ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 0.3 0.7 1.0 ms
RC start-up time max IO 7 ms
max IO 0.2 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 0.7 ms
IO Output current 0 25 A
Ilim Current limit threshold Tref < max Tref 26 31 35 A
Isc Short circuit current Tref = 25ºC, see Note 2 20 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 85 150 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 2.2 V
Note 1: See Operating information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
11
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4418/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.8 V/25 A Typical Characteristics PKU 4418G
Efficiency Power Dissipation
65
70
75
80
85
90
0 5 10 15 2 0 2 5 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0 5 10 15 2 0 2 5 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
5
10
15
20
25
30
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
1.70
1.75
1.80
1.85
1.90
0 5 10 15 20 25 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
16 18 20 22 24 26 28 30 32 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
12
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4418/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 D
1.8 V/25 A Typical Characteristics PKU 4418G
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 20 V/div.).
Time scale: ( 5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Top trace: output voltage ( 0.5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 25 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (6.25 - 18.75 - 6.25 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 10 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1 %10080.111.5
Radj kΩ
Example: Increase 4% =>Vout = 1.872 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 410080.111.5 kΩ = 57 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 1.764 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 80.1 80.1
45.2225.1 Vdesired
Vadj V
Example: Upwards => 1.90 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 80.1 80.190.1
45.2225.1 V = 1.36 V
Example: Downwards => 1.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 80.1 80.100.1
45.2225.1 V = 0.14 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
13
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4319/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
2.5 V/15 A Electrical Specification PKU 4319
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 34.5 V
CI Internal input capacitance 0.5
μF
PO Output power Output voltage initial setting 0 37.5 W
50 % of max IO 88.0
max IO 87.3
50 % of max IO , VI = 48 V 88.7
η Efficiency
max IO , VI = 48 V 87.6
%
Pd Power Dissipation max IO 5.5 8.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.5 W
PRC Input standby power VI = 53 V, turned off with RC 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 2.45 2.50 2.55 V
Output adjust range See operating information 1.90 3.0 V
Output voltage tolerance band 0-100 % of max IO 2.42 2.58 V
Idling voltage IO = 0 A 2.45 2.55 V
Line regulation max IO 1 10 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 8 15 mV
Vtr Load transient
voltage deviation ±125 ±250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs. 20 40 μs
tr Ramp-up time
(from 10−90 % of VOi) 3.5 4 4.5 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
7 8 9 ms
max IO 0.1 0.2 0.4
ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 0.9 1.3 1.5 ms
RC start-up time max IO 6 ms
max IO 1 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 1.5 ms
IO Output current 0 15 A
Ilim Current limit threshold Tref < max Tref 16 18 22 A
Isc Short circuit current Tref = 25ºC, see Note 2 13 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 55 100 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 3.35 V
Note 1: See Operating Instruction, section Turn-off Input Voltage
Note 2: RMS current in hiccup mode, VO lower than aprox 0.5 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
14
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4319/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
2.5 V/15 A Typical Characteristics PKU 4319
Efficiency Power Dissipation
70
75
80
85
90
95
0 3 5 8 10 13 15 [A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0 3 5 8 10 13 15 [A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
5
10
15
20
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
2.40
2.43
2.45
2.48
2.50
2.53
2.55
2.58
2.60
0 3 5 8 10 13 15 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
2.50
3.00
8 9 10 11 12 13 14 15 16 17 18 19 20 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
15
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4319/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
2.5 V/15 A Typical Characteristics PKU 4319
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage ( 1 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 2 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage ( 1 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 15 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change ( 3.75 — 11.25 -3.75 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 5 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1
%10050.211.5
Radj kΩ
Example: Increase 4% =>Vout = 2.60 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
410050.211.5 kΩ = 133 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 2.45 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 50.2
50.2
45.2225.1 Vdesired
Vadj V
Example: Upwards => 2.75 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.2
50.275.2
45.2225.1 V = 1.47 V
Example: Downwards => 2.25 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 50.2
50.225.2
45.2225.1 V = 0.98 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
16
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4510/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
3.3 V/15 A Electrical Specification PKU 4510
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage,
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 34.5 V
CI Internal input capacitance 0.5
μF
PO Output power Output voltage initial setting 0 49.5 W
50 % of max IO 89.7
max IO 89.2
50 % of max IO , VI = 48 V 89.9
η Efficiency
max IO , VI = 48 V 89.3
%
Pd Power Dissipation max IO 6.0 9.5 W
Pli Input idling power IO = 0 A, VI = 53 V 1.8 W
PRC Input standby power VI = 53 V (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 3.24 3.30 3.36 V
Output adjust range See operating information and note 2 1.90 3.63 V
Output voltage tolerance band 0-100 % of max IO 3.20 3.40 V
Idling voltage IO = 0 A 3.24 3.36 V
Line regulation max IO 1 10 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 8 18 mV
Vtr Load transient
voltage deviation -165/+150 -330/+250 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs.
20 40 μs
tr Ramp-up time
(from 10−90 % of VOi) 2.5 4 4.6 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
6 8 9 ms
max IO 0.1 0.2 0.3
ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 1.0 1.4 1.6 ms
RC start-up time max IO 6 ms
max IO 1 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 1.5 ms
IO Output current 0 15 A
Ilim Current limit threshold Tref < max Tref 16 18 22 A
Isc Short circuit current Tref = 25ºC, see Note 3 14 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 60 100 mVp-p
OVP Over voltage protection Tref = +25°C, VI = 53 V, 0-100 % of
max IO 4.35 V
Note 1: See Operating Instruction, section Turn-off Input Voltage
Note 2: VI min 38 V to obtain 3.63 V at 49.5 W output power.
Note 3: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
17
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4510/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
3.3 V/15 A Typical Characteristics PKU 4510
Efficiency Power Dissipation
70
75
80
85
90
95
0358101315[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0358101315[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
5
10
15
20
0 20 40 60 80 100 [°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
3.20
3.25
3.30
3.35
3.40
0 3 5 8 10 13 15 [A]
[V]
36 V
48 V
53 V
75 V
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
8 9 10 11 12 13 14 15 16 17 18 19 20 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
18
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4510/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
3.3 V/15 A Typical Characteristics PKU 4510
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 15 resistive load.
Top trace: output voltage ( 1 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 2 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 15 A resistive load.
Top trace: output voltage ( 1 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 1 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 15 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (3.75 - 11.25 - 3.75 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 5 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1
%10030.311.5
Radj kΩ
Example: Increase 4% =>Vout = 3.432 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
410030.311.5 kΩ = 220 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 3.234 Vdc
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 30.3
30.3
45.2225.1 Vdesired
Vadj V
Example: Upwards => 3.50 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 30.3
30.350.3
45.2225.1 V = 1.37 V
Example: Downwards => 3.10 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 30.3
30.310.3
45.2225.1 V = 1.08 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
19
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4511/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 B
5.0 V/10 A Electrical Specification PKU 4511
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage,
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 34.5 V
CI Internal input capacitance 0.5
μF
PO Output power Output voltage initial setting 0 50 W
50 % of max IO 89.8
max IO 89.6
50 % of max IO , VI = 48 V 90.0
η Efficiency
max IO , VI = 48 V 89.8
%
Pd Power Dissipation max IO 5.8 8.5 W
Pli Input idling power IO = 0 1.8 W
PRC Input standby power (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 4.90 5.00 5.10 V
Output adjust range See operating information and note 2 4.00 5.50 V
Output voltage tolerance band 0-100 % of max IO 4.85 5.15 V
Idling voltage IO = 0 A 4.90 5.10 V
Line regulation max IO 5 10 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 15 22 mV
Vtr Load transient
voltage deviation ±250 ±500 mV
ttr Load transient recovery time
Load step 25-75-25 % of max IO,
di/dt = 1 A/μs,
20 45 μs
tr Ramp-up time
(from 10−90 % of VOi) 2 4.5 5.5 ms
ts Start-up time
(from VI connection to 90% of VOi)
0-100 % of max IO
6 8 10 ms
max IO 0.1 0.2 0.3
ms
tf VI shutdown fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 1.0 1.2 1.4 ms
RC start-up time max IO 5.5 ms
max IO 0.8 ms
tRC RC shutdown fall time
(from RC off to 10% of VO) IO = 10 % of max IO 1.1 ms
IO Output current 0 10 A
Ilim Current limit threshold Tref < max Tref 10.5 13.2 15.4 A
Isc Short circuit current Tref = 25ºC, see Note 3 8 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 50 100 mVp-p
OVP Over voltage protection Tref = +25°C, 0-100% of max IO 6.1 V
Note 1: See Operating Instruction, section Turn-off Input Voltage
Note 2: VI min 38 V to obtain 5.50 V at 50 W output power.
Note 3: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
20
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4511/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 B
5.0 V/10 A Typical Characteristics PKU 4511
Efficiency Power Dissipation
70
75
80
85
90
95
0246810
[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
0246810[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
2
4
6
8
10
12
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
14
0.00.51.01.52.02.53.0[m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
4.90
4.95
5.00
5.05
5.10
0246810[A]
[V]
36 V
48 V
53 V
75 V
0.00
1.00
2.00
3.00
4.00
5.00
6 7 8 9 1011121314[A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V it enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
21
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4511/1
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 B
5.0 V/10 A Typical Characteristics PKU 4511
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 10 A resistive load.
Top trace: output voltage ( 2 V/div.).
Bottom trace: input voltage ( 20 V/div.).
Time scale: ( 2 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 10 A resistive load.
Top trace: output voltage ( 2 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 10 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (2.5 — 7.5 — 2.5 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage ( 200 mV/div.).
Bottom trace: load current ( 5 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1
%1000.511.5
Radj kΩ
Example: Increase 3% =>Vout = 5.15 Vdc
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
3
511
3225.1
31000.511.5 kΩ = 535 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 3% =>Vout = 4.85 Vdc
22.10
3
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 160 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 00.5
00.5
45.2225.1 Vdesired
Vadj V
Example: Upwards => 5.30 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 00.5
00.530.5
45.2225.1 V = 1.372 V
Example: Downwards => 4.80 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 00.5
00.580.4
45.2225.1 V = 1.127 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
22
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 C
12 V/4.17 A Electrical Specification PKU 4513
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 29 31 33 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 33.5 V
CI Internal input capacitance 0.5 μF
PO Output power Output voltage initial setting 0 50 W
50 % of max IO 88.5
max IO 89.0
50 % of max IO , VI = 48 V 89.5
η Efficiency
max IO, VI = 48 V 89.5
%
Pd Power Dissipation max IO 6 9.5 W
Pli Input idling power IO = 0 A 2 W
PRC Input standby power (turned off with RC) 0.15 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 11.76 12.00 12.24 V
Output adjust range See operating information and note 2 9.60 13.20 V
Output voltage tolerance band 0-100 % of max IO 11.64 12.36 V
Idling voltage IO = 0 A 11.70 12.30 V
Line regulation max IO 20 50 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 20 50 mV
Vtr Load transient
voltage deviation ±500 ±1000 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs,
14 50 μs
tr Ramp-up time
(from 10−90 % of VOi) 8 11 17 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
13 16 22 ms
max IO 0.1 0.2 0.3
ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 2 2.5 3 ms
RC start-up time max IO 14 ms
max IO 0.2 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 2.5 ms
IO Output current 0 4.17 A
Ilim Current limit threshold Tref < max Tref 4.4 5.3 6.5 A
Isc Short circuit current see Note 3 4.2 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 60 120 mVp-p
OVP Over voltage protection 0-100 % of max IO 15 V
Note 1: See Operating Instruction, section Turn-off Input Voltage
Note 2: VI min 38 V to obtain 13.2 V at 50 W output power.
Note 3: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
23
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 C
12 V/4.17 A Typical Characteristics PKU 4513
Efficiency Power Dissipation
70
75
80
85
90
95
01234[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
01234
[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
1
2
3
4
5
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
11.80
11.90
12.00
12.10
12.20
01234[A]
[V]
36 V
48 V
53 V
75 V
0.00
4.00
8.00
12.00
2.53.03.54.04.55.05.56.0[A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
24
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4513/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 C
12 V/4.17 A Typical Characteristics PKU 4513
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Top trace: output voltage ( 5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Top trace: output voltage ( 5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 4.2 A resistive load.
Trace: output voltage ( 20 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (1.05 - 3.15 - 1.05 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (1 V/div.).
Bottom trace: load current ( 1 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
(
)
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1 %1000.1211.5
Radj kΩ
Example: Increase 4% =>Vout = 12.48 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1 41000.1211.5 kΩ = 1164 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 11.76 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 0.12 0.12
45.2225.1 Vdesired
Vadj V
Example: Upwards => 12.5 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.12 0.125.12
45.2225.1 V = 1.33 V
Example: Downwards => 11.0 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.12 0.120.11
45.2225.1 V = 1.02 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
25
Ericsson Internal
PRODUCT SPECIFICATION 2 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 A
15 V/3.3 A Electrical Specification PKU 4515
Tref = -30 to +110ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: Tref = +25°C, VI= 53 V, max IO, unless otherwise specified under Conditions.
An external capacitor of 1 μF is used on the input during all measurements.
Characteristics Conditions min typ Max Unit
VI Input voltage range 36 75 V
VIoff Turn-off input voltage Decreasing input voltage
see Note 1 27 28 29 V
VIon Turn-on input voltage Increasing input voltage
see Note 1 32 33 33.5 V
CI Internal input capacitance 0.5 μF
PO Output power Output voltage initial setting 0 49.5 W
50 % of max IO 89.5
max IO 88.7
50 % of max IO , VI = 48 V 89.9
η Efficiency
max IO, VI = 48 V 88.8
%
Pd Power Dissipation max IO 6.3 9.5 W
Pli Input idling power IO = 0 A 1.8 W
PRC Input standby power (turned off with RC) 0.14 W
fs Switching frequency 0-100 % of max IO 290 320 350 kHz
VOi Output voltage initial setting and
accuracy Tref = +25°C, VI = 53 V, max IO 14.70 15.00 15.30 V
Output adjust range See operating information 12.00 16.50 V
Output voltage tolerance band 0-100 % of max IO 14.55 15.45 V
Idling voltage IO = 0 A 14.55 15.45 V
Line regulation max IO 30 65 mV
VO
Load regulation VI = 53 V, 0-100 % of max IO 12 50 mV
Vtr Load transient
voltage deviation ±800 ±1600 mV
ttr Load transient recovery time
VI = 53 V, Load step 25-75-25 % of
max IO, di/dt = 1 A/μs,
30 60 μs
tr Ramp-up time
(from 10−90 % of VOi) 3 6 9 ms
ts Start-up time
(from VI connection to 90 % of VOi)
0-100 % of max IO
8 12 16 ms
max IO 0.2 0.4 0.8
ms
tf VI shut-down fall time
(from VI off to 10 % of VO) IO = 10 % of max IO 2.5 3 3.5 ms
RC start-up time max IO 10 ms
max IO 0.25 ms
tRC RC shut-down fall time
(from RC off to 10 % of VO) IO = 10 % of max IO 1.2 ms
IO Output current 0 3.3 A
Ilim Current limit threshold Tref < max Tref 3.6 4.3 5 A
Isc Short circuit current see Note 2 3.0 A
VOac Output ripple & noise See ripple & noise section,
max IO, VOi 65 130 mVp-p
OVP Over voltage protection 0-100 % of max IO 19 V
Note 1: See Operating information section Turn-off Input Voltage.
Note 2: RMS current in hiccup mode, VO lower than aprox 0.5 V.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
26
Ericsson Internal
PRODUCT SPECIFICATION 3 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 A
15 V/3.3 A Typical Characteristics PKU 4515
Efficiency Power Dissipation
70
75
80
85
90
95
0123
[A]
[%]
36 V
48 V
53 V
75 V
0
2
4
6
8
10
0123
[A]
[W]
36 V
48 V
53 V
75 V
Efficiency vs. load current and input voltage at Tref = +25°C Dissipated power vs. load current and input voltage at
Tref = +25°C
Output Current Derating Thermal Resistance
0
1
2
3
4
0 20406080100[°C]
[A]
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
0
2
4
6
8
10
12
14
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
[°C/W]
Available load current vs. ambient air temperature and airflow at
VI = 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics Current Limit Characteristics
14 . 7 0
14 . 8 0
14 . 9 0
15 . 0 0
15 . 10
15 . 2 0
15 . 3 0
0123
[A]
[V]
36 V
48 V
53 V
75 V
0.00
5.00
10 . 0 0
15 . 0 0
20.00
2.0 2.5 3.0 3.5 4.0 4.5 5.0 [A]
[V]
36 V
48 V
53 V
75 V
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
At Vo lower than approx 0.5 V the module enters hiccup mode
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
27
Ericsson Internal
PRODUCT SPECIFICATION 4 (5)
Prepared (also subject responsible if other) No.
MICGORP 2/1301-BMR 602 4515/1 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 A
15V/3.3 A Typical Characteristics PKU 4515
Start-up Shut-down
Start-up enabled by connecting VI at:
Tref = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Top trace: output voltage ( 5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 5 ms/div.).
Shut-down enabled by disconnecting VI at:
Tref = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Top trace: output voltage ( 5 V/div.).
Bottom trace: input voltage ( 50 V/div.).
Time scale: ( 0.2 ms/div.).
Output Ripple & Noise Output Load Transient Response
Output voltage ripple at:
Tref = +25°C, VI = 53 V,
IO = 3.3 A resistive load.
Trace: output voltage ( 50 mV/div.).
Time scale: ( 2 μs/div.).
Output voltage response to load current step-
change (0.82 — 2.47 — 0.82 A) at:
Tref =+25°C, VI = 53 V.
Top trace: output voltage (1 V/div.).
Bottom trace: load current ( 1 A/div.).
Time scale: ( 0.1 ms/div.).
Output Voltage Adjust (see operating information)
Passive adjust
The resistor value for an adjusted output voltage is calculated by
using the following equations:
Output Voltage Adjust Upwards, Increase:
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
Δ
−
Δ×
Δ+×
=22.10
%
511
%225.1
%1000.1511.5
Radj kΩ
Example: Increase 4% =>Vout = 15.60 V
()
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−−
×
+× 22.10
4
511
4225.1
41000.1511.5 kΩ = 1489 kΩ
Output Voltage Adjust Downwards, Decrease:
22.10
%
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Δ
=Radj kΩ
Example: Decrease 2% =>Vout = 14.70 V
22.10
2
511 −
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛ kΩ = 245 kΩ
Active adjust
The output voltage may be adjusted using a voltage applied to the
Vadj pin. This voltage is calculated by using the following equation:
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+= 0.15
0.15
45.2225.1 Vdesired
Vadj V
Example: Upwards => 15.60 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.15
0.156.15
45.2225.1 V = 1.323 V
Example: Downwards => 14.70 V
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛−
×+ 0.15
0.157.14
45.2225.1 V = 1.176 V
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
28
Ericsson Internal
PRODUCT SPECIFICATION 1 (6)
Prepared (also subject responsible if other) No.
MPM/BK Göran Persson 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
EMC Specification
Conducted EMI measured according to EN55022, CISPR 22
and FCC part 15J (see test set-up). See Design Note 009 for
further information. The fundamental switching frequency is
320 kHz for PKU 4511 PI @ VI = 53 V, max IO.
Conducted EMI Input terminal value (typ)
EMI without filter
External filter (class B)
Required external input filter in order to meet class B in
EN 55022, CISPR 22 and FCC part 15J.
L1 L2
C1
C3
C4
C2
C5 Load
DC/DC
C6
Filter components:
C1, 2, 6 = 1 μF/100 V
Ceramic
C3, 4 = 2.2 nF/1500 V
Ceramic
C5 = 100 μF/100 V
Electrolytic
L1,L2 = 1.47 mH
2.8 A, Common Mode
EMI with filter
Test set-up
Layout recommendation
The radiated EMI performance of the DC/DC converter will
depend on the PCB layout and ground layer design.
It is also important to consider the stand-off of the DC/DC
converter.
If a ground layer is used, it should be connected to the output
of the DC/DC converter and the equipment ground or
chassis.
A ground layer will increase the stray capacitance in the PCB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise measured according to figure below.
See Design Note 022 for detailed information.
Output ripple and noise test setup
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
29
Ericsson Internal
PRODUCT SPECIFICATION 2 (6)
Prepared (also subject responsible if other) No.
MPM/BK Göran Persson 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
Operating information
Input Voltage
The input voltage range 36 to 75 Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in —48 and —60 Vdc systems, -40.5 to -
57.0 V and —50.0 to -72 V respectively.
At input voltages exceeding 75 V, the power loss will be
higher than at normal input voltage and Tref must be limited to
absolute max +110°C. The absolute maximum continuous
input voltage is 80 Vdc.
Turn-off Input Voltage
The DC/DC converters monitor the input voltage and will turn
on and turn off at predetermined levels.
The minimum hysteresis between turn on and turn off input
voltage is 1 V. On the 15 V version the minimum hysteresis
between turn on and turn off input voltage is 3 V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative input
connection (- In), with negative and
positive logic options available.
The RC function allows the
converter to be turned on/off by an
external device like a
semiconductor or mechanical
switch. The RC pin has an internal
pull up resistor to + In.
The maximum required sink current is 0.6 mA. When the RC
pin is left open, the voltage generated on the RC pin is
10 — 22 V. The maximum allowable leakage current of the
switch is 50 μA. With “negative logic” the converter will turn
on when the input voltage is applied with the RC connected
to the - In. Turn off is achieved by leaving the RC pin open, or
connected to a voltage higher than 8 V referenced to —In.
The second option is “positive logic” remote control, which
can be ordered by adding the suffix “P” to the end of the part
number. The converter will turn on when the input voltage is
applied with the RC pin open. Turn off is achieved by
connecting the RC pin to the - In. To ensure safe turn off the
voltage difference between RC pin and the - In pin shall be
less than 1 V. The converter will restart automatically when
this connection is opened.
See Design Note 021 for detailed information.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC converter. It is
important that the input source has low characteristic
impedance. The converters are designed for stable operation
without external capacitors connected to the output. It is
recommended to use an external capacitor of minimum 1 μF
on the the input. The performance in some applications can
be enhanced by addition of external capacitance as
described under External Decoupling Capacitors. If the input
volta
g
e source contains si
g
nificant inductance, the addition of
a 100 μF capacitor across the input of the converter will
ensure stable operation. The capacitor is not required when
powering the DC/DC converter from an input source with an
inductance below 10 μH.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved b
y
addition of decouplin
g
capacitors at the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible,
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC converter and may affect the
stability margins. As a “rule of thumb”, 100 μF/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Ericsson
Power Modules guarantee stable operation with a verified
ESR value of >10 mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
30
Ericsson Internal
PRODUCT SPECIFICATION 3 (6)
Prepared (also subject responsible if other) No.
MPM/BK Göran Persson 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
Operating information continued
Output Voltage Adjust (Vadj)
The DC/DC converters have an Output Voltage Adjust pin
(Vadj). This pin can be used to adjust the output voltage above
or below Output voltage initial setting.
When increasing the output voltage, the voltage at the output
pins (including any remote sense compensation ) must be
kept below the threshold of the over volta
g
e protection, (OVP)
to prevent the converter from shutting down. At increased
output voltages the maximum power rating of the converter
remains the same, and the max output current must be
decreased correspondingly.
To increase the voltage the resistor should be connected
between the Vadj pin and +Sense pin. The resistor value of the
Output voltage adjust function is according to information
given under the Output section for the respective product.
To decrease the output voltage, the resistor should be
connected between the Vadj pin and —Sense pin.
Parallel Operation
Two converters may be paralleled for redundancy if the total
power is equal or less than PO max. It is not recommended to
parallel the converters without using external current sharing
circuits.
See Design Note 006 for detailed information.
Remote Sense
The DC/DC converters have remote sense that can be used
to compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load.
If the remote sense is not needed +Sense should be
connected to +Out and -Sense should be connected to -Out.
Over Temperature Protection (OTP)
The converters are protected from thermal overload by an
internal over temperature shutdown circuit.
When Tref as defined in thermal consideration section
exceeds 135°C the converter will shut down. The DC/DC
converter will make continuous attempts to start up (non-
latching mode) and resume normal operation automatically
when the temperature has dropped >5°C below the
temperature threshold.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
shut down the converter in over voltage conditions. The
converter will make continuous attempts to start up (non-
latching mode, hiccup) and resume normal operation
automatically after removal of the over voltage condition.
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max IO). If the
output voltage decreases down to 0.5-0.6 V the converter
shuts down and will make continuous attempts to start up
(non-latching mode, hiccup). The converter will resume
normal operation after removal of the overload. The load
distribution should be designed for the maximum output short
circuit current specified.
Pre-bias Start-up
The product has a Pre-bias start up functionality and will not
sink current during start up if a pre-bias source is present at
the output terminals.
Typical Pre-bias source levels for no negative current:
Up to 0.5 V for PKU 4318L (1.2 V)
Up to 0.7 V for PKU 4318H (1.5 V)
Up to 1.0 V for PKU 4418G (1.8 V)
Up to 1.5 V for PKU 4319 (2.5 V)
Up to 2.0 V for PKU 4510 (3.3 V)
Up to 3.0 V for PKU 4511 (5 V)
Up to 6.0 V for PKU 4513 (12 V)
Up to 9.0 V for PKU 4515 (15 V)
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
31
Ericsson Internal
PRODUCT SPECIFICATION 4 (6)
Prepared (also subject responsible if other) No.
MPM/BK Göran Persson 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
Thermal Consideration
General
The converters are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to
the host board, and convection, which is dependent on the
airflow across the converter. Increased airflow enhances the
cooling of the converter.
The Output Current Derating graph found in the Output
section for each model provides the available output current
vs. ambient air temperature and air velocity at Vin = 53 V.
The DC/DC converter is tested on a 254 x 254 mm,
35 μm (1 oz), 8-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at positions P1. The temperature
at these positions should not exceed the max values provided
in the table below.
See Design Note 019 for further information.
Position Device Designation Max value
P1 Mosfet
Tref 110ºC
P1
Definition of reference temperature (Tref)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref are
not allowed and may cause degradation or permanent
damage to the product. Tref is also used to define the
temperature range for normal operating conditions.
Tref is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
Ambient Temperature Calculation
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
1. The power loss is calculated by using the formula
((1/η) - 1) × output power = power losses (Pd).
η = efficiency of converter. For example 89.2 % = 0.892
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (ΔT).
ΔT = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - ΔT.
Example PKU 4510 (@ VI 53 V &15 A) at 1 m/s:
1. (( ) - 1) × 49.5 W = 5.99 W
2. 5.99 W × 9.2°C/W = 55.1°C
3. 110 °C — 55.1°C = max ambient temperature is 54.9°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
1
0.892
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
32
Ericsson Internal
PRODUCT SPECIFICATION 5 (6)
Prepared (also subject responsible if other) No.
MPM/BK Göran Persson 3/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK (Natalie Johansson) (MICRF) 2007-05-10 E
Connections
Top View
Pin Designation Function
1 +In Positive Input
2 RC Remote Control
3 -In Negative Input
4 -Out Negative Output
5 -Sen Negative Sense
6 Vadj Output Voltage Adjust
7 +Sen Positive Sense
8 +Out Positive Output
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
33
Ericsson Confidential
PRODUCT SPEC. MECHANICAL 1 (3)
Prepared (also subject responsible if other) No.
MICJAN 4/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK/M See §1 2006-07-07 B
Mechanical Information - Surface mount version
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
34
Ericsson Confidential
PRODUCT SPEC. MECHANICAL 2 (3)
Prepared (also subject responsible if other) No.
MICJAN 4/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK/M See §1 2006-07-07 B
Mechanical Information - Through hole mount version
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
35
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 1 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK/E (Magnus Broman) See §1 2007-01-31 B
Soldering Information - Surface Mounting
The surface mount version of the product is intended for
convection or vapor phase reflow SnPb and Pb-free
processes. To achieve a good and reliable soldering result,
make sure to follow the recommendations from the solder
paste supplier, to use state-of-the-art reflow equipment and
reflow profiling techniques as well as the following guidelines.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleanin
g
residues ma
y
affect
long time reliability and isolation voltage.
Minimum Pin Temperature Recommendations
Pin number 8 is chosen as reference location for the minimum
pin temperature recommendations since this will likely be the
coolest solder joint during the reflow process.
Pin 8 for measurement of minimum
solder joint temperature, TPIN
Pin 2 for measurement of maximum peak product
reflow temperature, TP
SnPb solder processes
For Pb solder processes, a pin temperature (TPIN) in excess of
the solder melting temperature (TL, +183°C for Sn63/Pb37) for
more than 30 seconds, and a peak temperature of +210°C is
recommended to ensure a reliable solder joint.
Lead-free (Pb-free) solder processes
For Pb-free solder processes, a pin temperature (TPIN) in
excess of the solder melting temperature (TL, +217 to +221°C
for Sn/Ag/Cu solder alloys) for more than 30 seconds, and a
peak temperature of +235°C on all solder joints is
recommended to ensure a reliable solder joint.
Peak Product Temperature Requirements
Pin number 2 is chosen as reference location for the
maximum (peak) allowed product temperature, (TP), since this
will likel
y
be the warmest part of the product durin
g
the reflow
process.
To avoid dama
g
e or performance de
g
radation of the product,
the reflow profile should be optimized to avoid excessive
heating. A sufficientl
y
extended preheat time is recommended
to ensure an even temperature across the host PCB, for both
small and large devices. To reduce the risk of excessive
heating it is also recommended to reduce the time in the
reflow zone as much as possible.
SnPb solder processes
For conventional SnPb solder processes, the product is
qualified for MSL 1 according to IPC/JEDEC standard
J-STD-020C.
During reflow, TP must not exceed +225°C at any time.
Lead-free (Pb-free) solder processes
For Pb-free solder processes, the product is qualified for
MSL 3 according to IPC/JEDEC standard J-STD-020C.
During reflow, TP must not exceed +260°C at any time.
25 °C Time
Temperature
Ramp-down
(cooling)
Ramp-up
Reflow
Preheat
Time 25 °C to pea
k
TP
TL
Profile features Sn/Pb eutectic
assembly
Pb-free assembly
Average ramp-up rate 3°C/s max 3°C/s max
Solder melting
temperature (typical)
TL +183°C +221°C
Peak product temperature TP +225°C +260°C
Average ramp-down rate 6°C/s max 6°C/s max
Time 25 °C to peak
temperature
6 minutes max 8 minutes max
Soldering Information — Through Hole Mounting
The through hole mount version of the product is intended for
manual or wave soldering. When wave soldering is used, the
temperature on the pins is specified to maximum 270°C for
maximum 10 seconds.
A maximum preheat rate of 4°C/s and temperature of max of
150°C is suggested. When soldering by hand, care should be
taken to avoid direct contact between the hot soldering iron
tip and the pins for more than a few second
s in order to prevent overheating.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleanin
g
residues ma
y
affect
long time reliability and isolation voltage.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
36
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 2 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK/E (Magnus Broman) See §1 2007-01-31 B
Delivery Package Information
The surface mount and through hole version of the products
are delivered in antistatic injection molded trays (Jedec
design guide 4.10D standard) and the surface mount version
also in antistatic carrier tape (EIA 481 standard).
Tray Specifications
Material PPE, antistatic
Surface resistance 105 < Ohm/square < 1012
Bakability The trays can be baked at maximum
125°C for 48 hours maximum
Tray capacity 30 products/tray
Tray thickness 20 mm, [0.787 inch]
Box capacity 150 products 5 full trays/box
Tray weight 520 g full tray, 130 g empty
Carrier Tape Specifications
Material PS, antistatic
Surface resistance < 107 Ohm/square
Bakability The tape is not bakable
Tape width 56 mm [2.2 inch]
Pocket pitch 36 mm [1.42 inch]
Pocket depth 11.4 mm [0.449 inch]
Reel diameter 380 mm [15 inch]
Reel capacity 200 products /reel
Reel weight 3 kg/full reel
Dry Pack Information
The surface mount version of the product is delivered in trays
or tape & reel. These inner shipment containers are dry
packed in standard moisture barrier bags according to
IPC/JEDEC standard J-STD-033 (Handlin
g
, packin
g
, shippin
g
and use of moisture/reflow sensitivity surface mount devices).
Using products in high temperature Pb-free soldering
processes requires dry pack storage and handling. In case
the products have been stored in an uncontrolled
environment and no longer can be considered dry, the
modules must be baked according to J-STD-033.
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
37
Ericsson Internal
PROD. SPECIFICATION MECHANICAL 3 (4)
Prepared (also subject responsible if other) No.
MICJAN 5/1301-BMR 602 Uen
Approved Checked Date Rev Reference
MPM/BK/E (Magnus Broman) See §1 2007-01-31 B
Product Qualification Specification 3.
Characteristics
External visual inspection IPC-A-610
Dry heat IEC 60068-2-2 Bd Temperature
Duration
+125°C
1000 h
Cold (in operation) IEC 60068-2-1 Ad Temperature TA
Duration
-45°C
72 h
Damp heat IEC 60068-2-67 Cy Temperature
Humidity
Duration
+85°C
85 % RH
1000 hours
Operational life test MIL-STD-202G method 108A Duration 1000 h
Change of temperature
(Temperature cycling)
IEC 60068-2-14 Na Temperature range
Number of cycles
Dwell/transfer time
-40 to +100°C
1000
15 min/0-1 min
Vibration, broad band random IEC 60068-2-64 Fh, method 1 Frequency
Spectral density
Duration
10 to 500 Hz
0.07 g2/Hz
10 min in each 3 perpendicular
directions
Mechanical shock IEC 60068-2-27 Ea Peak acceleration
Duration
Pulse shape
Directions
Number of pulses
100 g
6 ms
Half sine
6
18 (3 + 3 in each perpendicular
direction)
Robustness of terminations
IEC 60068-2-21 Test Ua1
IEC 60068-2-21 Test Ue1
Plated through hole mount
products
Surface mount products
All leads
All leads
Resistance to soldering heat 1 IEC 60068-2-20 Tb Method 1A Solder temperature
Duration
270°C
10-13 s
Moisture reflow sensitivity 2 J-STD-020C level 1 (SnPb-eutectic)
level 3 (Pb Free)
225°C
260°C
Solderability
IEC 60068-2-20 test Ta 1
IEC 60068-2-58 test Td 2
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
Preconditioning
Temperature, SnPb Eutectic
Temperature, Pb-free
Steam ageing
235°C
260°C
150°C dry bake 16 h
215°C
235°C
Immersion in cleaning solvents IEC 60068-2-45 XA
Method 2
Water
Glycol ether
Isopropanol
+55°C
+35°C
+35°C
Electrostatic discharge
susceptibility
IEC 61340-3-1, JESD 22-A114
IEC 61340-3-2, JESD 22-A115
Human body model (HBM)
Machine Model (MM)
Class 2, 2000 V
Class 3, 200 V
Note 1: Only for products intended for wave soldering
Note 2: Only for products intended for reflow soldering
Note 3: Qualification of surface mount version pending
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R2B May 2007
© Ericsson Power Modules AB
Technical Specifi cation
E
PKU 4000 PI & SI series
DC/DC converters, Input 36-75 V, Output 25 A/50 W
EN/LZT 146 308 R3A May 2007
© Ericsson Power Modules AB
Technical Specifi cation
38
