The PQ60015HPAA0 PowerQor® Peta half-brick converter
is a next-generation, board-mountable, isolated, fixed
switching frequency DC/DC converter that uses synchro-
nous rectification to achieve extremely high conversion
efficiency. The power dissipated by the converter is so low
that a heatsink is not required, which saves cost, weight,
height, and application effort. All of the power and control
components are mounted to the multi-layer PCB substrate
with high-yield surface mount technology for maximum reli-
ability. The Peta series converters offer industry leading
output current for a standard “half-brick” module. The Peta
units also feature active current sharing for N+1 and paral-
lel applications. RoHS compliant (see page 13).
48Vin 1.5Vout 100Amp 2000Vdc Half-brick
Input Output Current Isolation DC/DC Converter
• 2000V,30MΩinput-to-outputisolation
• UL60950-1:2003
• CAN/CSA-C22.2No.60950-1:2003
• EN60950-1:2001
• RoHScompliant(seepage13)
Safety Features
• Industrystandardpin-outconfiguration
• Industrystandardsize:2.3”x2.4”(58.4x61.0mm)
• Totalheightonly0.43”(10.8mm),permitsbetterairflow
andsmallercardpitch
• Totalweight:2.9oz.(83grams)
Mechanical Features
• Ultra-highefficiency,>89%halfload,>83%fullload
• Deliversupto100ampsofoutputcurrentwithminimal
derating-noheatsinkrequired
• Wideinputvoltagerange:35–75V,with100V100ms
inputvoltagetransientcapability
• Fixedfrequencyswitchingprovidespredictable
EMIperformance
Operational Features
• Inputunder-voltagelockoutdisablesconverteratlowinput
voltageconditions
• Outputcurrentlimitandshortcircuitprotection>
• Activebackbiaslimitpreventsdamagetoconverterfrom
externalloadinducedpre-bias
• Outputover-voltageprotection
• Thermalshutdown
Protection Features
• On/Offcontrolreferencedtoinputside(positiveand
negativelogicoptionsareavailable)
• Remotesensefortheoutputvoltagecompensatesfor
outputdistributiondrops
• Outputvoltagetrimpermitscustomvoltagesand
voltagemargining
Control Features
• ActivecurrentshareforN+1andparallelapplications
• ExternalClockSynchronizationpinforbetter
EMIcharacteristics
• StartupSynchronizationpinformoreconsistent
start-upsequence
Optional Features
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 1
Technical
Specification
PQ60015HPAA0
PQ60015HPAA0 Module
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 2
PQ60015HPAA0 Mechanical Diagram
0.19
(4.8)
1.90
(48.3)
2.30
(58.4)
0.400
(10.16) 0.200
(5.08)
Bottom side
Clearance
1.400
(35.56)
1.600
(40.64)
1.000
(25.40)
2.40
(61.0)
0.400
(10.16) 0.600
(15.24)
1.000
(25.40)
0.50
(12.7)
0.800
(20.32)
1.400
PIN FARSIDE TYPICAL
(35.56)
0.700
(17.78) 0.43
(10.8)
0.047+/-0.005
(1.19+/-0.12)
Top View Side View
0.145
(3.68)
See Note 4
1
11 10 9 8 7 6 5
2 A B 3 4
PIN DESIGNATIONS
Pin Name Function
1 Vin(+) Positiveinputvoltage
2 ON/OFF TTLinputtoturnconverteronandoff,referenced
toVin(–),withinternalpullup.
3 Ishare Singlewireparallelsignal
4 Vin(–) Negativeinputvoltage
5 Vout(+) Positiveoutputvoltage
6 Vout(–) Negativeoutputvoltage
7 SENSE(–) Returnremotesense1
8 TRIM Outputvoltagetrim
9 SENSE(+) Positiveremotesense
10 Vout(+) Positiveoutputvoltage
11 Vout(-) Negativeoutputvoltage
A ClockSync Clocksynchronization
BStartSync Startupsynchronization
Pins in Italics Shaded text are Optional
NOTES
1)
Pins1-4,7-9,A-Bare0.040”(1.02mm)diameter.with
0.080”(2.03mm)diameterstandoffshoulders.
2)
Pins5-6,10-11are0.080”(2.03mm)diameterwith
0.125”(3.18mm)diameterstandoffshoulders.
3)
Pins3,A,&BonlyincludedinFull-Featuremodels.
4)
Otherpinextensionlengthsavailable.Recommendedpin
lengthis0.03”(0.76mm)greaterthanthePCBthickness.
5)
AllPins:Material-CopperAlloy
Finish(RoHS5/6)-Tin/LeadoverNickelplate
Finish(RoHS6/6)-MatteTinoverNickelplate
6)
Undimensionedcomponentsareshownforvisualreferenceonly.
7)
Alldimensionsininches(mm)
Tolerances:x.xx+/-0.02in.(x.x+/-0.5mm)
x.xxx+/-0.010in.(x.xx+/-0.25mm)
8)
Weight:2.9oz.(83g)typical
9)
Workmanship:MeetsorexceedsIPC-A-610CClassII
10) UL/TUVstandardsrequireaclearancegreaterthan0.04”
(1.02mm)betweeninputandoutputforBasicinsulation.This
issueshouldbeconsideredifanycoppertracesareonthetop
sideoftheuser’sboard.Notethattheferritecoresareconsid-
eredpartoftheinput/primarycircuit.
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
Parameter
Min. Typ. Max. Units Notes & Conditions
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating 100 V Continuous
Operating 80 V Continuous
Operating Transient Protection
100 V
100m
s transient, square wave
Isolation Voltage (input to output) 2000 V Basic insulation level, Pollution degree 2
Operating Temperature -40 100
°C
Storage Temperature -55 125
°C
Voltage at ON/OFF input pin -2 18 V
Voltage at Clock Sync pin -15 18 V Applies to Full Feature option only
INPUT CHARACTERISTICS
Operating Input Voltage Range 35 48 75 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 31.5 33.3 34.4 V
Turn-Off Voltage Threshold 29.5 31.0 32.4 V
Lockout Voltage Hysteresis 2.2 2.3 2.4 V
Maximum Input Current 5.13 A 100% Load, 35 Vin
No-Load Input Current 50 70 mA
Disabled Input Current 2 5 mA
Inrush Current Transient Rating 0.03 A2s
Response to Input Transient 150 mV 1000V/ms input transient
Input Reflected Ripple Current 2 mA RMS thru 10
µH inductor; Figures 13 & 15
Input Terminal Ripple Current 75 mA RMS
; Figures 13 & 14
Recommended Input Fuse 20 A Fast blow external fuse recommended
Input Filter Component Values (C1\L\C2) 2\4\4
µF\µH\µF Internal values; see Figure D
Recommended External Input Capacitance 47
µF Typical ESR 0.1-0.2
W
; see Figure 13
OUTPUT CHARACTERISTICS
Output Voltage Set Point 1.485 1.500 1.515 V
Output Voltage Regulation
Over Line +0.07 \ 1 +0.13 \ 2 %\mV
Over Load +0.13 \ 2 +0.27 \ 4 %\mV
Over Temperature +12 +24 mV
Total Output Voltage Range 1.455 1.545 V Over sample, line, load, temperature & life
Output Voltage Ripple and Noise1 20MHz bandwidth;
Figures
13 & 16
Peak-to-Peak 130 200 mV Full Load;
Figures
13 & 16
RMS 38 50 mV Full Load;
Figures
13 & 16
Operating Output Current Range 0 100 A Subject to thermal derating; Figures 5 - 8
Output DC Current-Limit Inception 110 125 A Output Voltage 10% Low; Figure 17
Output DC Current-Limit Shutdown Voltage 0.55 V
Current Share Accuracy (2 units paralleled) +2 +5 % % of rated output current
Back-Drive Current Limit while Enabled 1.5 4.0 6.5 A Negative current drawn from output
Back-Drive Current Limit while Disabled 0 10 50 mA Negative current drawn from output
Maximum Output Capacitance 50,000
µF
1.5Vout at 100A Resistive Load
DYNAMIC CHARACTERISTICS
Input Voltage Ripple Rejection 70 dB 120 Hz; Figure 20
Output Voltage during Load Current Transient
For a Step Change in Output Current (0.1A/µs) 170 mV 50% to 75% to 50% Iout max; Figure 11
For a Step Change in Output Current (5A/µs) 140 mV 50% to 75% to 50% Iout max; Figure 12
Settling Time 100 µs To within 1% Vout nom
Turn-On Transient
Turn-On Time 16 30 ms Full load, Vout=90% nom.; Figures 9 & 10
Start-Up Inhibit Time 180 200 240 ms
-40°C to +125°C; Figure F
Output Voltage Overshoot 0 % 10,000 µF load capacitance, Iout = 0A
EFFICIENCY
100% Load 83.5 % Figures 1 - 4
50% Load 89.5 % Figures 1 - 4
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature 125 °C Package rated to 150°C
Board Temperature 125 °C UL rated max operating temp 130°C
Transformer Temperature 125 °C See Figures
5 - 8
for derating curves
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength) 2000 V
Isolation Resistance 30 M
W
Isolation Capacitance
2
3300 pF
PQ60015HPAA0 ELECTRICAL CHARACTERISTICS
TA=25°C, airflow rate=300 LFM, Vin=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient
temperature with appropriate power derating.
Specifications subject to change without notice.
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: Higher values of isolation capacitance can be added external to the module.
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 3
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
Parameter
P Min. Typ. Max. Units Notes & Conditions
FEATURE CHARACTERISTICS
Regulation Stage Switching Frequency 280 310 340 kHz
Isolation Stage Switching Frequency 77.5 kHz
ON/OFF Control (Option P)
Off-State Voltage -2 0.8 V
On-State Voltage 2.7 18 V
ON/OFF Control (Option N)
Off-State Voltage 2.7 18 V
On-State Voltage -2 0.8 V
ON/OFF Control (Either Option) Figures A & B
Pull-Up Voltage Vin/6 15 V
Pull-Up Resistance 42 k
W
Output Voltage Trim Range -20 +10 % Measured across Pins 10 & 5; Figure C
Output Voltage Remote Sense Range +10 % Measured across Pins 10 & 5
Output Over-Voltage Protection 122 127 132 % Over full temp range; % of nominal Vout
Over-Temperature Shutdown 125 °C Average PCB Temperature
Over-Temperature Shutdown Restart Hysteresis 10 °C
Load Current Scale Factor 3600 See App Note: Output Load Current Calc.
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) 2.16 106 Hrs. TR-NWT-000332; 75% load,300LFM, 40oC Ta
Calculated MTBF (MIL-217) 1.43 106 Hrs. MIL-HDBK-217F; 75% load, 300LFM, 40oC Ta
Field Demonstrated MTBF 106 Hrs. See website for latest values
STANDARDS COMPLIANCE
Parameter
P Notes
STANDARDS COMPLIANCE
UL/cUL 60950 File # E194341, Basic insulation & pollution degree 2
EN60950 Certified by TUV
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2) Test on entire assembly; board & plastic components UL94V-0 compliant
IEC 61000-4-2 ESD test, 8kV - NP, 15kV air - NP (Normal Performance)
GR-1089-CORE Section 7 - electrical safety, Section 9 - bonding/grounding
Telcordia (Bellcore) GR-513
•
An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety
certificates on new releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
P # Units Test Conditions
QUALIFICATION TESTING
Life Test 32 95% rated Vin and load, units at derating point, 1000 hours
Vibration 5 10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis
Mechanical Shock 5 100g minimum, 2 drops in x and y axis, 1 drop in z axis
Temperature Cycling 10 -40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles
Power/Thermal Cycling 5 Toperating = min to max, Vin = min to max, full load, 100 cycles
Design Marginality 5 Tmin-10°C to Tmax+10°C, 5°C steps, Vin = min to max, 0-105% load
Humidity 5 85°C, 85% RH, 1000 hours, 2 minutes on and 6 hours off
Solderability 15 pins MIL-STD-883, method 2003
•
Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply
robust, reliable product. Contact factory for official product family qualification document.
ELECTRICAL CHARACTERISTICS (Continued)
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 4
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
65
70
75
80
85
90
95
0 10 20 30 40 50 60 70 80 90 100
Load Current (A)
Efficiency (%)
35 Vin
48 Vin
75 Vin
82
83
84
85
86
87
88
89
90
0 100 200 300 400 500
Air Flow
(LFM)
Efficiency (%)
25 C
40 C
55 C
Figure 2: Efficiency at nominal output voltage and 60% rated power
vs. airflow rate for ambient air temperatures of 25
°
C, 40
°
C, and 55
°
C
(nominal input voltage).
0
5
10
15
20
25
30
0 10 20 30 40 50 60 70 80 90 100
Power Dissipation (W)
35 Vin
48 Vin
75 Vin
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25
°
C.
8.0
9.0
10.0
11.0
12.0
13.0
14.0
0 100 200 300 400 500
Power Dissipation
(W)
25 C
40 C
55 C
Figure 4: Power dissipation at nominal output voltage and 60% rated
power vs. airflow rate for ambient air temperatures of 25
°
C, 40
°
C, and
55
°
C (nominal input voltage).
0
10
20
30
40
50
60
70
80
90
100
0 25 40 55 70 85
Ambient Air Temperature (oC)
Iout (A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from input to output (nominal input voltage).
Figure 6: Thermal plot of converter at 84 amp load current with 55
°
C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from input to output (nominal input voltage).
Figure 1: Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25
°
C.
Semiconductor junction temperature is
within 1
°
C of surface temperature
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 5
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
0
10
20
30
40
50
60
70
80
90
100
0 25 40 55 70 85
Ambient Air Temperature (oC)
Iout (A)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
Figure 7: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from output to input (nominal input voltage).
Figure 8: Thermal plot of converter at 82 amp load current with 55
°
C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from output to input (nominal input voltage).
Figure 9: Turn-on transient at full load (resistive load) (10 ms/div).
Input voltage pre-applied. Top Trace: Vout (500mV/div). Bottom
Trace: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (500mV/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 11: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max); dI/dt = 0.1A/
µ
s). Load cap: 15
µ
F, 450 m
W
ESR tantalum capacitor and
1
µ
F ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (50A/div).
Figure 12: Output voltage response to step-change in load current (50%-75%-50%
of Iout(max): dI/dt = 5A/
µ
s). Load cap: 480
µ
F, 15 m
W
ESR tantalum capacitor and
1
µ
F ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (50A/div).
Semiconductor junction temperature is
within 1
°
C of surface temperature
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 6
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
Figure 13: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 14), Input Reflected Ripple Current
(Figure 15) and Output Voltage Ripple (Figure 16).
10
µ
H
source
impedance
DC/DC
Converter
See Fig. 15
See Fig. 14
See Fig. 16
1
µ
F
ceramic
capacitor
15
µ
F,
450m
W
ESR
tantalum
capacitor
47
µ
F,
<1
W
ESR
electrolytic
capacitor
VSOURCE
iSiCVOUT
Figure 14: Input Terminal Ripple Current, ic, at full rated output cur-
rent and nominal input voltage with 10
µ
H source impedance and 47
µ
F
electrolytic capacitor (100 mA/div). (See Figure 13)
Figure 15: Input reflected ripple current, is, through a 10
µ
H source
inductor at nominal input voltage and rated load current (5 mA/div).
(See Figure 13)
Figure 16: Output voltage ripple at nominal input voltage and rated
load current (100 mV/div). Load capacitance: 1
µ
F ceramic capacitor
and 15
µ
F tantalum capacitor. Bandwidth: 20 MHz. (See Figure 13)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Load Current (A)
Output Voltage (V)
35 V
48 V
75 V
Figure 17: Output voltage vs. load current showing typical current limit
curves and converter shutdown points. Figure 18: Load current (50A/div) as a function of time when the con-
verter attempts to turn on into a 1 m
W
short circuit. Top trace (2.5ms/
div) is an expansion of the on-time portion of the bottom trace.
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 7
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
0.0001
0.001
0.01
100 1,000 10,000 100,000
Hz
Output Impedance (ohms)
35 Vin
48 Vin
75 Vin
Figure 19: Magnitude of incremental output impedance (Zout = vout/
iout) for minimum, nominal, and maximum input voltage at full rated
power.
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
100 1,000 10,000 100,000
Hz
Forward Transmission (dB)
35 Vin
48 Vin
75 Vin
Figure 20: Magnitude of incremental forward transmission (FT = vout/
vin) for minimum, nominal, and maximum input voltage at full rated
power.
-60
-50
-40
-30
-20
-10
0
10 100 1,000 10,000 100,000
Hz
Reverse Transmission (dB)
35 Vin
48 Vin
75 Vin
Figure 21: Magnitude of incremental reverse transmission (RT = iin/
iout) for minimum, nominal, and maximum input voltage at full rated
power.
0.1
1
10
100
10 100 1,000 10,000 100,000
Hz
Input Impedance (ohms)
35 Vin
48 Vin
75 Vin
Figure 22: Magnitude of incremental input impedance (Zin = vin/iin)
for minimum, nominal, and maximum input
voltage at full rated power.
0
1
2
3
4
5
6
7
8
9
10
40.0 39.5 39.0 38.5 38.0 37.5 37.0 36.5 36.0 35.5 35.0
Input Voltage (V)
Vout Trim-up (%)
100% Load
50% Load
0% Load
Figure 23: Achievable trim-up percentage vs. input voltage. at output
loads of 0%, 50% and full load.
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 8
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
BASIC OPERATION AND FEATURES
The PowerQor series converter uses a two-stage power conversion
topology. The first stage is a buck-converter that keeps the output
voltage constant over variations in line, load, and temperature.
The second stage uses a transformer to provide the functions of
input/output isolation and voltage step-down to achieve the low
output voltage required.
Both the first stage and the second stage switch at a fixed fre-
quency for predictable EMI performance. Rectification of the trans-
former’s output is accomplished with synchronous rectifiers. These
devices, which are MOSFETs with a very low on-state resistance,
dissipate far less energy than Schottky diodes. This is the primary
reason that the PowerQor converter has such high efficiency, even
at very low output voltages and very high output currents.
Dissipation throughout the converter is so low that it does not
require a heatsink for operation. Since a heatsink is not required,
the PowerQor converter does not need a metal baseplate or pot-
ting material to help conduct the dissipated energy to the heatsink.
The PowerQor converter can thus be built more simply and reliably
using high yield surface mount techniques on a PCB substrate.
The PowerQor series of half-brick, quarter-brick and eighth-
brick converters uses the industry standard footprint and pin-out
configuration.
CONTROL FEATURES
REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits
the user to control when the converter is on or off. This input is
referenced to the return terminal of the input bus, Vin(-). There
are two versions of the converter that differ by the sense of the
logic used for the ON/OFF input.
In the positive logic version, the ON/OFF input is active high
(meaning that a high turns the converter on). In the negative logic
version, the ON/OFF signal is active low (meaning that a low
turns the converter on). Figure A details five possible circuits for
driving the ON/OFF pin. Figure B is a detailed look of the internal
ON/OFF circuitry.
REMOTE SENSE(+) (Pins 9 and 7): The SENSE(+) inputs
correct for voltage drops along the conductors that connect the
converter’s output pins to the load.
Pin 9 should be connected to Vout(+) and Pin 7 should be con-
nected to Vout(-) at the point on the board where regulation is
desired. A remote connection at the load can adjust for a voltage
drop only as large as that specified in this datasheet, that is
[Vout(+) - Vout(-)] – [Vsense(+) - Vsense(-)] <
Sense Range % x Vout
Pins 9 and 7 must be connected for proper regulation of the out-
put voltage. If these connections are not made, the converter will
deliver an output voltage that is slightly higher than its specified
value.
Note: the output over-voltage protection circuit senses the voltage
across the output (pins 11 and 5) to determine when it should
trigger, not the voltage across the converter’s sense leads (pins
9 and 7). Therefore, the resistive drop on the board should be
small enough so that output OVP does not trigger, even during
load transients.
OUTPUT VOLTAGE TRIM (Pin 8): The TRIM input permits the
user to adjust the output voltage across the sense leads up or down
according to the trim range specifications.
Open Collector Enable Circuit
Figure A: Various circuits for driving the ON/OFF pin. Figure B: Internal ON/OFF pin circuitry
Remote Enable Circuit
Direct Logic Drive
Negative Logic
(Permanently Enabled)
Positive Logic
(Permanently Enabled)
ON/OFF
Vin(_)
ON/OFF
ON/OFF
Vin(_)
ON/OFF
5V
TTL/
CMOS
Vin(_)
ON/OFF
Vin(_)
Vin(_)
TTL
5V
50k
274k
Vin(+)
ON/OFF
Vin(_)
50k
100pF
TTL
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 9
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
To decrease the output voltage, the user should connect a resistor
between Pin 8 and Pin 7 (SENSE(-) input). For a desired decrease
of the nominal output voltage, the value of the resistor should be
Rtrim-down =
(
100%
)
- 2 (kW)
D
where
D% =
Vnominal – Vdesired
x 100%
Vnominal
To increase the output voltage, the user should connect a resistor
between Pin 8 and Pin 9 (SENSE(+) input). For a desired increase
of the nominal output voltage, the value of the resistor should be
(kW)
Rtrim-up =
(
Vnominal – 2
)
x VDES + VNOM
1.225
VDES - VNOM
Figure C graphs the relationship between the trim resistor value
and Rtrim-up and Rtrim-down, showing the total range the output
voltage can be trimmed up or down.
Figure C: Trim Graph for 1.5Vout module
Note: the TRIM feature does not affect the voltage at which the out-
put over-voltage protection circuit is triggered. Trimming the output
voltage too high may cause the over-voltage protection circuit to
engage, particularly during transients.
It is not necessary for the user to add capacitance at the Trim pin.
The node is internally bypassed to eliminate noise.
Total DC Variation of Vout: For the converter to meet its full
specifications, the maximum variation of the DC value of Vout,
due to both trimming and remote load voltage drops, should not
be greater than that specified for the output voltage trim range.
PROTECTION FEATURES
Input Under-Voltage Lockout: The converter is designed to
turn off when the input voltage is too low, helping avoid an input
system instability problem, described in more detail in the applica-
tion note titled “Input System Instability”. The lockout circuitry is a
comparator with DC hysteresis. When the input voltage is rising,
it must exceed the typical Turn-On Voltage Threshold value (listed
on the specification page) before the converter will turn on. Once
the converter is on, the input voltage must fall below the typical
Turn-Off Voltage Threshold value before the converter will turn off.
Input Over-Voltage Shutdown: Available on PQ48 models
only. The converter turns off when the input voltage is too high,
allowing the converter to withstand an input voltage as high as
100V without destruction. The shutdown circuitry is a comparator
with DC hysteresis. When the input voltage exceeds the typical
Input Over-Voltage Shutdown value, the converter will turn off.
Once the converter is off, it will turn back on when the input volt-
age falls below the minimum Input Over-Voltage Shutdown value.
Output Current Limit: The maximum current limit remains
constant as the output voltage drops. However, once the imped-
ance of the short across the output is small enough to make the
output voltage drop below the specified Output DC Current-Limit
Shutdown Voltage, the converter turns off.
The converter then enters a “hiccup mode” where it repeatedly
turns on and off at a 5 Hz (nominal) frequency with a 5% duty
cycle until the short circuit condition is removed. This prevents
excessive heating of the converter or the load board.
Output Over-Voltage Limit: If the voltage across the output
pins exceeds the Output Over-Voltage Protection threshold, the
converter will immediately stop switching. This prevents damage
to the load circuit due to 1) excessive series resistance in output
current path from converter output pins to sense point, 2) a release
of a short-circuit condition, or 3) a release of a current limit condi-
tion. Load capacitance determines exactly how high the output
voltage will rise in response to these conditions. After 200 ms the
converter will automatically restart.
Over-Temperature Shutdown: A temperature sensor on the
converter senses the average temperature of the module. The ther-
mal shutdown circuit is designed to turn the converter off when the
temperature at the sensed location reaches the Over-Temperature
Shutdown value. It will allow the converter to turn on again when
the temperature of the sensed location falls by the amount of the
Over-Temperature Shutdown Restart Hysteresis value.
1
10
100
1,000
0 2 4 6 8 10 12 14 16 18 20
Trim Resistance (kOhms)
% Increase in Vout % Decrease in Vout
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 10
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
C2
C1
L
Vin(+)
Vin(_)
Vin External
Input
Filter Trim
Vin(+)
Iload
Cload
Vout(+)
Rtrim-up
or
Rtrim-down
Vsense(+)
ON/OFF
Vin(_)Vout(_)
Vsense(_)
Electrolytic
Capacitor
APPLICATION CONSIDERATIONS
Input System Instability: This
condition can occur because
any DC/DC converter appears incrementally as a negative
resistance load. A detailed application note titled “Input System
Instability” is available on the SynQor website which provides
an understanding of why this instability arises, and shows the
preferred solution for correcting it.
Application Circuits: Figure D below provides a typical circuit
diagram which details the input filtering and voltage trimming.
Input Filtering and External Capacitance: Figure E below
provides a diagram showing the internal input filter components.
This filter dramatically reduces input terminal ripple current, which
otherwise could exceed the rating of an external electrolytic input
capacitor. The recommended external input capacitance is speci-
fied in the “Input Characteristics” section. More detailed informa-
tion is available in the application note titled “EMI Characteristics”
on the SynQor website.
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 200ms when it is
shut down for any reason. When an output short is present, this
generates a 5Hz “hiccup mode,” which prevents the converter
from overheating. In all, there are seven ways that the converter
can be shut down, initiating a Startup Inhibit Period:
• Input Under-Voltage Lockout
• Input Over-Voltage Shutdown (not present in Quarter-brick)
• Output Over-Voltage Protection
• Over Temperature Shutdown
• Current Limit
• Short Circuit Protection
• Turned off by the ON/OFF input
Figure F shows three turn-on scenarios, where a Startup Inhibit
Period is initiated at t0, t1, and t2:
Before time t0, when the input voltage is below the UVL threshold,
the unit is disabled by the Input Under-Voltage Lockout feature.
When the input voltage rises above the UVL threshold, the Input
Under-Voltage Lockout is released, and a Startup Inhibit Period is
initiated. At the end of this delay, the ON/OFF pin is evaluated,
and since it is active, the unit turns on.
At time t1, the unit is disabled by the ON/OFF pin, and it cannot
be enabled again until the Startup Inhibit Period has elapsed.
When the ON/OFF pin goes high after t2, the Startup Inhibit
Period has elapsed, and the output turns on within the typical
Turn-On Time.
Figure D: Typical application circuit (negative logic unit, permanently enabled).
Figure E: Internal Input Filter Diagram (component values listed on the specifications page).
47µF
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 11
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
FULL FEATURE APPLICATION NOTES
This section provides some basic application information for the
full-feature version of the PowerQor series converter. The pin-out
configuration for these optional feature pins is shown on page 2,
and the part numbering format is shown on the last page of this
specification sheet.
All units in this product family include back-drive protection to
simplify the use of multiple converters in a parallel or sequencing
application. However, any voltage applied to the output of the
converter should be kept below 120% of the rated output voltage
of the converter.
In addition to back-drive protection, these units include the follow-
ing features (pins):
Current Share (pin 3): The active current share feature allows
for N+1 and parallel applications. To achieve load sharing,
directly connect the I share pins of multiple units. The load cur-
rent will share equally among the multiple units (±5% at full rated
current). It is important that the Vin(-) pins of the sharing units be
directly connected and NOT placed outside of an EMI filter or
other impedance path. The voltage at the I Share pin will range
from 0 to 5 volts (at full rated current), referenced to the primary-
side ground, Vin(-).
Start Sync (pin B): The Start Synchronization pin will allow
a more consistent start-up sequence. To operate this feature, con-
nect together the Start-Sync pins of multiple current-sharing units.
This will permit immediate start-up with loads greater than the
current limit of a single unit. Without this connection, any set of
converters attempting to asynchronously start (or re-start) with a
load greater than the current limit of a single unit will “hiccup”.
This “hiccup” mode will continue until one converter attempts a
start at the same time as the minimum number of additional units
necessary to sustain the load condition. For example, three 50
amp units starting into a 90 amp load would require two units to
simultaneously attempt a start. The Start Sync connection synchro-
nizes these starting attempts and provides a more consistent and
reliable start-up sequence. For details about the “hiccup mode”
or repeated startup attempts, please see the “Startup Inhibit
Period” note in this Technical Specification.
Clock Sync (pin A): The External Clock Synchronization pin
provides the ability for the user to control the EMI signature and
synchronize sensitive circuitry to quiet periods in the converter
operation. With this option, the converter can be synchronized to
an external clock signal whose frequency is greater than that of
the free-running internal clock. However, substantially raising the
converter’s frequency will reduce its efficiency. Therefore, the rec-
ommended frequency range for the external clock synchroniza-
tion signal applied to this pin would be the lowest value possible
without dropping below the maximum switching frequency value
listed on the Electrical Specifications page.
The following requirements should also be met:
• The external clock signal should be referenced to the
negative input voltage, Vin(-).
• The high level of the signal should be between 3.5V and
5.0V.
• The low level should be between -0.5V and +1.2V.
• Do not apply a clock signal lower than the specified fre-
quency.
Figure F: Startup Inhibit Period (turn-on time not to scale)
Under-Voltage
Lockout Turn-On
Threshold
ON/OFF
(pos logic)
Vout
Vin
200ms 200ms
200ms
(typical start-up
inhibit period)
t0t1t2t
20ms (typical
turn on time)
ON ON ON
OFF OFF
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 12
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
PART NUMBERING SYSTEM
The part numbering system for SynQor’s dc-dc converters
followstheformatshownintheexamplebelow.
Thefirst12characterscomprisethebasepartnumberand
the last 3 characters indicate available options. The “-G”
suffixindicates6/6RoHScompliance.
Application Notes
Avarietyofapplicationnotesandtechnicalwhitepaperscan
bedownloadedinpdfformatfromourwebsite.
RoHS Compliance:TheEUledRoHS(RestrictionofHazardous
Substances) Directive bans the use of Lead, Cadmium,
Hexavalent Chromium, Mercury, Polybrominated Biphenyls
(PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical
and Electronic Equipment. This SynQor product is 6/6 RoHS
compliant. For more information please refer to SynQor’s
RoHSaddendumavailableatourRoHSCompliance/LeadFree
Initiativewebpageore-mailusat
rohs@synqor.com
.
ORDERING INFORMATION
Thetablesbelowshowthevalidmodelnumbersandordering
optionsforconvertersinthisproductfamily.Whenordering
SynQorconverters,pleaseensurethatyouusethecomplete
15 character part number consisting of the 12 character
basepartnumberandtheadditionalcharactersforoptions.
Add“-G”tothemodelnumberfor6/6RoHScompliance.
The following options must be included in place of the
x y z
spaces in the model numbers listed above.
Not all combinations make valid part numbers, please contact
SynQorforavailability. SeetheProductSummarywebpagefor
moreoptions.
PATENTS
SynQor holds the following patents, one or more of which
might apply to this product:
5,999,417 6,222,742 6,545,890 6,577,109
6,594,159 6,731,520 6,894,468 6,896,526
6,927,987 7,050,309 7,072,190 7,085,146
7,119,524 7,269,034 7,272,021 7,272,023
Warranty
SynQoroffersathree(3)yearlimitedwarranty.Completewarrantyinforma-
tionislistedonourwebsiteorisavailableuponrequestfromSynQor.
InformationfurnishedbySynQorisbelievedtobeaccurateandreliable.
However,noresponsibilityisassumedbySynQorforitsuse,norforany
infringementsofpatentsorotherrightsofthirdpartieswhichmayresult
fromitsuse.Nolicenseisgrantedbyimplicationorotherwiseunderany
patentorpatentrightsofSynQor.
Product Family
Package Size
Performance Level
Thermal Design
Output Current
6/6 RoHS
Options (see
Ordering Information)
Input Voltage
Output Voltage
Contact SynQor for further information:
Phone: 978-849-0600
TollFree: 888-567-9596
Fax: 978-849-0602
E-mail: power@synqor.com
Web:
www.synqor.com
Address: 155SwansonRoad
Boxborough,MA01719
USA
Product # PQ60015HPAA0 Phone 1-888-567-9596 www.synqor.com Doc.# 005-2HP651K Rev. D 05\20\09 Page 13
Model Number Input
Voltage Output
Voltage Max Output
Current
PQ60012HPAA0xyz-G 35 – 75V 1.2V 100A
PQ60015HPAA0xyz-G 35 – 75V 1.5V 100A
PQ60018HPAA0xyz-G 35 – 75V 1.8V 100A
PQ60018HPA80xyz-G 35 – 75V 1.8V 80A
PQ60025HPA80xyz-G 35 – 75V 2.5V 80A
PQ60033HPA70xyz-G 35 – 75V 3.3V 70A
PQ60050HPA45xyz-G 35 – 75V 5.0V 45A
PQ60120HPA20xyz-G 35 – 75V 12V 20A
PQ 60 015 H P A A0 N N S - G
Options Description: x y z
Enable Logic Pin Style Feature Set
P - Positive
N - Negative
K - 0.110"
N - 0.145"
R - 0.180"
Y - 0.250"
S - Standard
F - Full Feature