IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
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WDC_IRV300 Series.A01.D29 Page 1 of 21
PRELIMINARY
Output
Voltage
(Vdc)
Output Current
(A)
Input Voltag
e Range
(Vdc)
12
2
5
.0
16
.8
to
1
60
24 12.5 16.8 to 160
5
4
5
.
5
16
.8
to 1
60
Optimized for harsh environments in industrial/railway applications, the IRV300 DC-DC
converter series offer regulated outputs in a ruggedized, encased chassis-mount package.
batteries, Remote On/Off control and an Open
Collector DC Output Power Good Signal
including a visual LED as standard.
The IRV300 offer additional options such as
“Hold Up” capability for overriding load
dependent input interruptions of 10mS to 20mS
not affecting the output and “ORing FET” for
dual redundancy or power share incorporating
droop voltage. The standard self protection
features include Overvoltage protection, Current
limit/Short circuit protection, Over temperature
protection and ensure safe and reliable power
delivery.
FEATURES
16.8V – 160V steady state, with transient range
of 14.4V – 168V for 100mS
Output voltages of 12, 24 or 54 Volts
Up to 300 Watts total output power
Ruggedized and encased chassis-mount package
7.3" x 4.6" x 1.6" (185mm x 116mm x 40mm)
Compliant to Railway standards EN 50155 and
EN 50121-3-2
High efficiency up to 92%, typical
Tight Line and Load regulation
Low Ripple and Noise
Extensive self-protection shut down features,
including over temperature shutdown
Output voltage adjustable
Green LED Power Indicator
Remote On/Off and PUL
Optional ORing feature for redundant or parallel
operation with droop
Optional Hold-up feature
Operating ambient temperature range -40 to
+70°C (10min +85°C)
PRODUCT OV
ERV
IEW
The IRV300 series is a 300W stand alone,
system level, chassis mount isolated DC-DC
converter. The converter features an ultra wide
input designed to accept nominal battery voltages
from 24V to 110V in a single product.
The IRV300 is ideally suited for Railway
applications, meeting EN50155 standard in a
single package. The output voltage has a wide
trim range up to +15% of Vnom, and features a
constant current output profile ideally suited for
high inductive/capacitive loading.
They feature Programmable Undervoltage Lock-
out (PUL) to prevent deep discharge of the input
Typical unit
SAFETY FEATURES
Protected against fire and smoke to EN 45545
(Pending)
4250Vdc input to output isolation
UL 62368-1 and IEC/EN62368-1 safety approvals
CE approved
RoHS compliant
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 2 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
①②
Root Model
Output Input
Efficiency
Package
④
V
out
(V)
I
out
(A)
Power
(W)
R/N (mV pk-pk) Regulation (max.)
③
V
in
Nom.
(V)
Range
(V)
I
in
, no load
(mA)
I
in
, full
load (A)
Typ. Max. Line Load Min. Typ. Case (inches)
IRV300-12W80 12 25
300 60 120 ±0.5% ±0.5% 110 16.8-160 23 3 88.5%
92% 7.27 x 4.57 x 1.56
IRV300-24W80 24 12.5
300 190 240 ±0.5% ±0.5% 110 16.8-160 19 3 86.0%
92% 7.27 x 4.57 x 1.56
IRV300-54W80 54 5.5
300 200 480 ±0.5% ±0.5% 110 16.8-160 TBD TBD 86.0%
90% 7.27 x 4.57 x 1.56
①
Please refer to the Part Number Structure when ordering.
②
All specifications are at 110V nominal line voltage, full load, +25°C unless
otherwise noted. See detailed specifications.
③
Regulation specifications describe output voltage deviations from a
nominal/midpoint value to either extreme (50% load step).
④
Please see the Mechanical Specifications for details.
Nominal Output Voltage:
Volts (Vdc)
Part Number Examples:
IRV300-12W80-C stands for Industrial Railway Version, 300W, 12Vout, 16.8-160Vin, including all standard features without options, RoHS Compliant.
IRV300-12W80H-C stands for Industrial Railway Version, 300W, 12Vout, 16.8-160Vin, Hold-up, RoHS Compliant.
IRV300-24W80R-C stands for Industrial Railway Version, 300W, 24Vout, 16.8-160Vin, ORing FET, RoHS Compliant.
IRV300-54W80HR-C stands for Industrial Railway Version, 300W, 54Vout, 16.8-160Vin, Hold-up, ORing FET, RoHS Compliant.
IRV300-MCK stands for Mating Connector Kit, (NOTE: The kit contains all 3 mating connectors. There is a Minimum Pack Quantity of 4 sets.)
RoHS Compliant
Industrial Railway Version
-
12
/
4.5
PART NUMBER STRUCTURE
Q12
S
IR
IRV
300
-
12
W80
H
R
-
C
Output Powe
r:
Watts (W)
O
Ring FET:
Blank = Without ORing FET
R = With ORing FET
Hold
-
Up:
Blank = Without Hold-up cap
H = With Hold-up cap
In
put
Voltag
e Rang
e
:
16.8-160 Vdc
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 3 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-12
ABSOLUTE MAXIMUM RATINGS
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous Full temperature range 16.8
160 Vdc
Voltage Brownout and Transients 14.4V (100mS, per EN50155) / 168V (100mS) 14.4
168 Vdc
Output Power
0
3
03
W
Output Current
Current
-
limited,
no
damage, short
-
circuit protected
0
31
A
Storage Temperature Range
Vin = Zero (no power)
-
55
8
5
°C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Operating Input Voltage Range
16.8
24, 36, 48,
72, 96,110 160 Vdc
Recommended External Fuse
Fast blow
See PUL (P.1
7
)
A
Start
-
up
Voltage
Rising input voltage
16.
5
16.
7
Vdc
Und
erv
oltage
Shutdown (PUL set for 24Vin)
Falling input voltage
. (
14.4V for 100ms
)
15.5
Vdc
Ov
erv
oltage
S
hutdown
Rising input voltage
170.0
Vdc
Reverse Polarity Protection [
7
]
With
install
ed external fuse
Yes
Vdc
Input
C
urrent
Full Load Conditions
Vin
@
110V
nominal
3.0
A
Full Load Conditions
Vin
@
24V
nominal
14.0
A
Low Line
Vin = minimum ,
2
5A
load
21
A
Inrush
Transient
2
.7
A
No Load Input
Power
110
Vi
n
typ
2.5
W
Shut
-
Down Mode Input
Power
nominal input voltage (110V)
1.4
W
GENERAL and SAFETY
Efficiency
Vin=
24
V, full load
8
9
%
Vin=
110
V, full load
8
8
.5
9
2
%
Isolation
Isolation Voltage, Input to
Output
4250
Vdc
Isolation Voltage, Input to
C
ase
2830
Vdc
Isolation Voltage,
C
ase to Output
1420
Vdc
I
n
s
u
lation
Resistance
Measured with 500Vdc
100
MΩ
Safety Rating
Reinforced
Safety (Designed to meet the following require-
ments)
UL 62368-1, IEC/EN62368-1, Demko
Approved
EN 45545, HL1 to HL3 fire/smoke
Pending
Calculated MTBF [2] Per Telcordia SR-332, Issue 3, Case 3, Ground
Benign controlled, Tambient=40°C
1.02
Hours x 10
6
DYNAMIC CHARACTERISTICS
Fixed Switching
Frequency
Stage 1/Stage 2
250/
2
00
k
Hz
Power Up Startup Time
Power On to Vout regulated
35
0
mS
On/Off Startup Time
Remote O
n
to Vout regulated
5
0
mS
Dynamic Load Response 50-75-50% load step, settling time to within
±1% of Vout
50 350 µSec
Dynamic Load Peak Deviation
Same as above,
±
10
0
±
2
00
mV
FEATURES and OPTIONS
Remote On/Off Control [
3
]
P
ositive Logic
Positive Logic, ON state
ON=Pin open or external voltage
4
15
Vdc
Positive Logic, OFF state
OFF=Pin grounded or external
voltage
0
0.
7
Vdc
Control Current
Open collector/drain, sinking
1
2
mA
Programmable
U
ndervoltage
L
ockout
(PUL)
See Page 1
7
for details
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 4 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-12 (CONT.)
OUTPUT
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Total Output Power
See Derating
0
300
303
W
Voltage
Nominal Output Voltage
No trim
11.88
12
.00
12.12
Vdc
Setting Accuracy
At 50% load
1
% of Vnom.
Output Voltage Range [
5
]
User
-
adjustable
-
8
+
1
5
% of Vnom.
Ov
erv
oltage Protection [
6
]
Latching Mode
1
4
.
5
1
6
1
7
.5
Vdc
Current
Output Current Range
Vin=
16.8
V
-
160
V
0
.0
25.0
A
Short Circuit
Short Circuit Current
Constant current mode 25.1 28 31 A
Short Circuit Duration
(remove short for recovery) Output shorted to ground, no damage
Continuous
Short circuit protection method
Constant
Current limiting
Regulation [
4
]
Line Regulation
Vin=
16
.8
V
to
160V
, ou
tput @ nominal
load
±0.5
%
Load Regulation
Iout=min. to max., Vin=
110
V
±0.5
%
Ripple
and Noise
with a 1uF || 10uF output caps
60
1
2
0
mV pk
-
pk
Temperature Coefficient
At all outputs
0.02
% of Vnom./°C
Maximum Capacitive Load
Constant resistance mode
0.1
F
Hold-up (Optional)
EN550155
:
Class
S2
(@300W) / Class S3
(@180W) 10 / 20 mS
MECHANICAL
Outline Dimensions
7
.
27
x
4
.
57
x
1
.5
6
Inches
(Please refer to outline drawing)
L x W x H
184.6
x
116
x
39.7
mm
Case Material
Aluminum, Black Anodized
Weight
32
Ounces
900
Grams
EMI/RFI Shielding
Case
ENVIRONMENTAL
Operating Ambient Temperature Range
Continuous
(for 10min)
-
40
70 (85)
°C
Operating Case Temperature Range
No derating
-
40
90
°C
Thermal Protection/Shutdown
Yes
°C
Storage Temperature
Vin = Zero (no
power)
-
55
8
5
°C
Altitude
3000 m
Electromagnetic Interference
Meets EN50121
-
3
-
2
L PERFORMANCE DATA, IRV-12/4.5-Q12
Performance Specification Notes
1.
All specifications are typical unless noted. Ambient temperature =+25°Celsius, Vin is nominal, output current is maximum rated nominal.
2.
Mean Time Before Failure (MTBF) is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, Issue 3, Ground Benign, Controlled. Operating temperature = +40°C, full output load,
natural air convection.
3.
The On/Off Control is normally driven from a switch or relay. An open collector/open drain transistor may be used in saturation and cut-off (pinch-off) modes. External logic may also be used if
voltage levels are fully compliant to the specifications.
4.
Regulation specifications describe the deviation as the input line voltage or output load current is varied from a nominal midpoint value to either extreme (50% load).
5.
Do not exceed maximum power ratings or output overvoltage when adjusting output trim values.
6.
Output over-voltage protection (OVP) is latching mode. Recycle input to enable, after the output over-voltage condition has been removed.
7.
If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external fast blow input fuse in series with the +Vin input.
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 5 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
ICAL PER TYPICAL PERFORMANCE DATA, IRS-12/4.5-Q12
TYPICAL PERFORMANCE DATA, IRV300-12
0
10
20
30
40
50
60
70
80
90
100
0
5
10
15
20
25
η (%)
Power efficiency vs load
160Vin
110Vin
24Vin
48Vin
16.8Vin
0
2
4
6
8
10
12
0 5 10 15 20 25 30
Start-up Waveform
Vin = 110V, 0A Load
Start-up Waveform
Vin =
110V
,
25
A
Load
Power Efficiency vs Load
Hold Up/Interruption Time: Measured hold up time with 12Vo/200W
Ch1: Vin Ch3: Vout Ch4: Iout
Overload Protection at Vin = 110V @ 22°C
Efficiency (%)
Hold Up/Interruption Time: Measured hold up time with 12Vo/300W
Ch1: Vin Ch3: Vout Ch4: Iout
Iout (A) Iout (A)
Vout (V)
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 6 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA, IRV300-12
100
120
140
160
180
200
220
240
260
280
300
320
-
4 0
-
3 0
-
2 0
-
1 0
0
5 0
6 0
7 0
7 5
8 0
8 5
9 0
OUTPUT POWER ( WATTS )
16.8Vin 24Vin 110Vin 137.5Vin 160Vin
Output Ripple & Noise (58mVp-p)
Vin = 110V (Ch1), Vout = 12V (Ch3), Iout = 25A (Ch4), 5us/div.
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 75% 50%, 20us/div. Vpp=103mV
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 50% 75%, 20us/div. Vpp=96mV
Temperature Derating
Vin = 16.8-160V (Still Air) Baseplate
Ambient Temperature in Degrees Celsius (°C)
Output Power (Watts)
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 7 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-24
ABSOLUTE MAXIMUM RATINGS
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous Full temperature range 16.8
160 Vdc
Input Voltage, Transient 14.4V (100mS, per EN50155) / 168V (100mS) 14.4
168 Vdc
Output Power
0
303
W
Output Current
Current
-
limited,
no
damage, short
-
circuit protected
0
1
6
.5
A
Storage Temperature Range
Vin = Zero (no power)
-
55
8
5
°C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Operating Input Voltage Range
16.8
24, 36,
48,
72, 96,110 160 Vdc
Recommended External Fuse
Fast blow
See PUL (P.1
7
)
A
Start
-
up
Voltage
Rising input voltage
16
.
5
Vdc
Und
erv
oltage
Shutdown (PUL set for 24Vin)
Falling input voltage
. (
14.4V for 100ms
)
15.
5
Vdc
Ov
erv
oltage
S
hutdown
Rising input voltage
170.0
Vdc
Reverse Polarity Protection [
7
]
With
install
ed external fuse
Yes
Vdc
Input
C
urrent
Full Load Conditions
Vin
@
110V
nominal
3.00
A
Full Load Conditions
Vin
@
24V
nominal
14.1
A
Low Line
Vin = minimum ,
1
2
.
5A
load
2
0.6
A
Inrush Transient
2.7
A
No Load Input
Power
110
Vi
n
typ
2.1
W
Shut
-
Down Mode Input
Power
nominal input voltage (110V)
1.4
W
GENERAL and SAFETY
Efficiency
Vin=
24
V, full load
8
8.1
%
Vin=
110
V, full load
89.5
9
1.5
%
Isolation
Isolation Voltage, Input to Output
4250
Vdc
Isolation Voltage, Input to
C
ase
2830
Vdc
Isolation Voltage,
C
ase to Output
1420
Vdc
I
n
s
u
lation
Resistance
Measured with 500Vdc
100
MΩ
Safety Rating
Reinforced
Safety (Designed to meet the following require-
ments)
UL 62368-1, IEC/EN62368-1, Demko
Approved
EN 45545, HL1 to HL3 fire/smoke
Pending
Calculated MTBF [2] Per Telcordia SR-332, Issue 3, Case 3, Ground
Benign controlled, Tambient=40°C
1.03
Hours x 10
6
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
Stage 1/Stage 2
250/
2
00
k
Hz
Power Up Startup Time
Power On to Vout regulated
350
mS
On/Off Startup Time
Remote ON to Vout regulated
50
mS
Dynamic Load Response 50-75-50% load step, settling time to within
±1% of Vout
150 350 µSec
Dynamic Load Peak Deviation
Same as above,
±
1
0
0
±
2
00
mV
FEATURES and OPTIONS
Remote On/Off Control [
3
]
P
ositive Logic
Positive Logic, ON state
ON=Pin open or external voltage
4
15
Vdc
Positive Logic, OFF state
OFF=Pin grounded or external voltage
0
0.
7
Vdc
Control Current
Open collector/drain, sinking
1
2
mA
Programmable
U
ndervoltage
L
ockout
(PUL)
See Page 1
7
for details
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 8 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-24 (CONT.)
OUTPUT
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Total Output Power
See Derating
0
300
303
W
Voltage
Nominal Output Voltage
No trim
23
.
76
2
4
2
4
.2
4
Vdc
Setting Accuracy
At 50% load
±1
% of
Vnom.
Output Voltage Range [
5
]
User
-
adjustable
-
1
0
+
10
% of Vnom.
Ov
erv
oltage Protection [
6
]
Latching Mode
28
30
3
3
Vdc
Current
Output Current Range
Vin=
16
.8
V
-
1
60
V
0
12.5
A
Short Circuit
Short Circuit Current
Constant current mode 12.6 14.4 16.5 A
Short Circuit Duration
(remove short for recovery) Output shorted to ground, no damage
Continuous
Short circuit protection method
C
onstant C
urrent limiting
Regulation [
4
]
Line Regulation
Vin=min. to max., Vout=nom., full load
±0.5
%
Load Regulation
Iout=min. to max., Vin=
110
V
±0.5
%
Ripple and Noise
with a 1uF || 10uF output caps
75
24
0
mV pk
-
pk
Temperature Coefficient
At all outputs
±0.02
% of Vnom./°C
Maximum Capacitive Load
Constant resistance mode
0.1
F
Hold-up (Optional)
EN550155
:
Class
S2
(
@300W) / Class
S3
(@180W) 10 / 20 mS
MECHANICAL
Outline Dimensions
7
.
27
x
4
.
57
x
1
.5
6
Inches
(Please refer to outline drawing)
L x W x H
184.6
x
116
x
39.7
mm
Case Material
Aluminum, Black Anodized
Weight
32
Ounces
900
Grams
EMI/RFI Shielding
Case
ENVIRONMENTAL
Operating Ambient Temperature Range
Continuous
(for 10min)
-
40
70 (85)
°C
Operating Case Temperature Range
No derating
-
40
90
°C
Thermal
Protection/Shutdown
Temperature on PCB
Yes
°C
Storage Temperature
Vin = Zero (no power)
-
55
8
5
°C
Altitude
3000 m
Electromagnetic Interference
Meets EN50121
-
3
-
2
Performance Specification Notes
1.
All specifications are typical unless noted. Ambient temperature =+25°Celsius, Vin is nominal, output current is maximum rated nominal.
2.
Mean Time Before Failure (MTBF) is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, Issue 3, Ground Benign, Controlled. Operating temperature = +40°C, full output load,
natural air convection.
3.
The On/Off Control is normally driven from a switch or relay. An open collector/open drain transistor may be used in saturation and cut-off (pinch-off) modes. External logic may also be used
if voltage levels are fully compliant to the specifications.
4.
Regulation specifications describe the deviation as the input line voltage or output load current is varied from a nominal midpoint value to either extreme (50% load).
5.
Do not exceed maximum power ratings or output overvoltage when adjusting output trim values.
6.
Output over-voltage protection (OVP) is latching mode. Recycle input to enable, after the output over-voltage condition has been removed.
7.
If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external fast blow input fuse in series with the +Vin input.
PRELIMINARY
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WDC_IRV300 Series.A01.D29 Page 9 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA, IRV300-24
0
10
20
30
40
50
60
70
80
90
100
0 2 4 6 8 10 12 14
η (%)
Power efficiency vs load
160Vin
110Vin
48Vin
24Vin
16.8Vin
0
4
8
12
16
20
24
0
3
6
9
12
15
Vout(V)
Start-up Waveform
Vin = 110V, 0A Load
Start-up Waveform
Vin = 110V, 12.5A Load
Power Efficiency vs Load
Overload
Protec
tion at Vin
=
110V
Hold Up/Interruption Time: Measured hold up time with 24Vo/200W
Ch1: Vin Ch3: Vout Ch4: Iout
Hold Up/Interruption Time: Measured hold up time with 24Vo/300W
Ch1: Vin Ch3: Vout Ch4: Iout
Efficiency (%)
Vout (V)
Iout (A) Iout (A)
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WDC_IRV300 Series.A01.D29 Page 10 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA, IRV300-24
100
120
140
160
180
200
220
240
260
280
300
320
- 4 0 - 3 0 - 2 0 - 1 0 0 5 0 6 0 7 0 7 5 8 0 8 5 9 0
16.8Vin 24Vin 110Vin 137.5Vin 160Vin
Output Ripple & Noise (62mVp-p)
Vin = 110V (Ch1), Vout = 24V (Ch3), Iout = 12.5A (Ch4), 5us/div.
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 50%
75%, 50us/div. Vpp=112mV
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 75% 50%, 50us/div. Vpp=111mV
Temperature Derating
Vin = 16.8-160V (Still Air) Baseplate
Output Power (Watts)
Ambient Temperature in Degrees Celsius (°C)
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WDC_IRV300 Series.A01.D29 Page 11 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-54
ABSOLUTE MAXIMUM RATINGS
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous Full temperature range 16.8
160 Vdc
Input Voltage, Transient 14.4V (100mS, per EN50155) / 168V (100mS) 14.4
168 Vdc
Output Power
0
305
W
Output Current
Current
-
limited,
no
damage, short
-
circuit protected
0
TBD
A
Storage Temperature Range
Vin = Zero (no power)
-
55
8
5
°C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Operating Input Voltage Range
16.8
24, 36, 48,
72, 96,110 160 Vdc
Recommended External Fuse
Fast blow
TBD
A
Start
-
up
Voltage
Rising input voltage
TBD
Vdc
Und
erv
oltage
Shutdown (PUL set for 24Vin)
Falling input voltage
. (
14.4V for 100ms
)
TBD
Vdc
Ov
erv
oltage
S
hutdown
Rising input voltage
TBD
Vdc
Reverse Polarity Protection [
7
]
With
install
ed external fuse
Yes
Vdc
Input
C
urrent
Full Load Conditions
Vin
@
110V
nominal
TBD
A
Full Load Conditions
Vin
@
24V
nominal
TBD
A
Low Line
Vin = minimum ,
6.
2
5A
load
A
Inrush Transient
TBD
mA
No Load Input
Power
110
Vi
n
typ
TBD
W
Shut
-
Down Mode Input
Power
Vi
n
min
/
max,
On/Off = 0
TBD
W
GENERAL and SAFETY
Efficiency
Vin=
24
V, full load
86.0
%
Vin=
110
V, full load
89.5
91.5
%
Isolation
Isolation Voltage, Input to Output
4250
Vdc
Isolation Voltage, Input to
C
ase
2830
Vdc
Isolation Voltage,
C
ase to Output
15
0
0
V
a
c
I
n
s
u
lation
Resistance
Measured with 500Vdc
100
MΩ
Safety Rating
Reinforced
Safety (Designed to meet the following require-
ments)
UL 62368-1, IEC/EN62368-1, Demko
Approved
EN 45545, HL1 to HL3 fire/smoke
Pending
Calculated MTBF [2] Per Telcordia SR-332, Issue 3, Case 3, Ground
Benign controlled, Tambient=40°C
TBD
Hours x 10
6
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
Stage 1/Stage 2
250/
2
00
k
Hz
Power Up Startup Time
Power On to Vout regulated
354
mS
On/Off Startup Time
Remote O
n
to Vout regulated
5
0
mS
Dynamic Load Response 50-75-50% load step, settling time to within
±1% of Vout
TBD TBD µSec
Dynamic
Load Peak Deviation
Same as above,
±
TBD
±
TBD
mV
FEATURES and OPTIONS
Remote On/Off Control [
3
]
P
ositive Logic
Positive Logic, ON state
ON=Pin open or external voltage
4
15
Vdc
Positive Logic, OFF state
OFF=Pin grounded or external voltage
0
0.
7
Vdc
Control Current
Open collector/drain, sinking
1
2
mA
Programmable
U
ndervoltage
L
ockout
(PUL)
See Page 1
7
for details
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WDC_IRV300 Series.A01.D29 Page 12 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
FUNCTIONAL SPECIFICATIONS, IRV300-54 (CONT.)
OUTPUT
Conditions [1]
Minimum
Typical/Nominal
Maximum
Units
Total Output Power
See Derating
0
30
2
305
W
Voltage
Nominal Output Voltage
No trim
53.46
5
4
5
4.54
Vdc
Setting Accuracy
At 50% load
±1
% of Vnom.
Output Voltage Range [
5
]
User
-
adjustable
4
7
57
V
dc
Ov
erv
oltage Protection [
6
]
Latching Mode
60
62.5
65
Vdc
Current
Output Current Range
Vin=
16
.8
V
-
1
60
V
0
5.
5
A
Short Circuit
Short Circuit Current
Constant current mode TBD
TBD TBD
A
Short Circuit Duration
(remove short for recovery) Output shorted to ground, no damage
Continuous
Short
circuit protection method
C
onstant c
urrent limiting
Regulation [
4
]
Line Regulation
Vin=min. to max., Vout=nom., full load
±0.5
%
Load Regulation
Iout=min. to max., Vin=
110
D
V
±0.5
%
Ripple and Noise
with a 1uF || 10uF output caps
20
0
4
8
0
mV
pk
-
pk
Temperature Coefficient
±0.02
% of Vnom./°C
Maximum Capacitive Load
Constant resistance mode
0
0
.1
F
Hold-up (Optional)
EN550155
:
Class S2
(@300W) / Class 3
(@TBDW) 10 / 20 mS
MECHANICAL
Outline Dimensions
7
.
27
x
4
.
57
x
1
.5
6
Inches
(Please refer to outline drawing)
L x W x H
184.6
x
116
x
39.
7
mm
Case Material
Aluminum, Black Anodized
Weight
32
Ounces
900
Grams
EMI/RFI Shielding
Case
ENVIRONMENTAL
Operating Ambient Temperature Range
Continuous (for 10min.)
-
40
70
(85)
°C
Operating Case Temperature Range
No derating
-
40
90
°C
Thermal Protection/Shutdown
Yes
°C
Storage Temperature
Vin = Zero (no power)
-
55
8
5
°C
Altitude
3000 m
Electromagnetic Interference
Meets
EN50121
-
3
-
2
Performance Specification Notes
1.
All specifications are typical unless noted. Ambient temperature =+25°Celsius, Vin is nominal, output current is maximum rated nominal.
2.
Mean Time Before Failure (MTBF) is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, Issue 3, Ground Benign, Controlled. Operating temperature = +40°C, full output load,
natural air convection.
3.
The On/Off Control is normally driven from a switch or relay. An open collector/open drain transistor may be used in saturation and cut-off (pinch-off) modes. External logic may also be used
if voltage levels are fully compliant to the specifications.
4.
Regulation specifications describe the deviation as the input line voltage or output load current is varied from a nominal midpoint value to either extreme (50% load).
5.
Do not exceed maximum power ratings or output overvoltage when adjusting output trim values.
6.
Output over-voltage protection (OVP) is latching mode. Recycle input to enable, after the output over-voltage condition has been removed.
7.
If reverse polarity is accidentally applied to the input, to ensure reverse input protection, always connect an external fast blow input fuse in series with the +Vin input.
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WDC_IRV300 Series.A01.D29 Page 13 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA, IRV300-54
Start
-
u
p
Waveform
TBD
Start-up Waveform
TBD
Power Efficiency vs Load
TBD
Hold Up/Interruption Time: Measured hold up time with 54Vo/200W
TBD
Overload Protection at Vin = 110V @ 22°C
TBD
Hold Up/Interruption Time: Measured hold up time with 54Vo/300W
TBD
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WDC_IRV300 Series.A01.D29 Page 14 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA, IRV300-54
TBD TBD
TBD TBD
TBD
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 50% 75%, 50us/div. Vpp=TBDmV
Output Ripple & Noise (TBDmVp-p)
Vin = 110V (Ch1), Vout = 54V (Ch3), Iout = 5.5A (Ch4), 5us/div.
Transient Response
Vin = 110V (Ch1), Vout (Ch3), Iout (Ch4) Step Load 75% 50%, 50us/div. Vpp=TBDmV
Temperature Derating
Vin = 16.8-160V (Still Air) Baseplate
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WDC_IRV300 Series.A01.D29 Page 15 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
ENVIRONMENTAL QUALIFICATION TESTING:
Test Method Standard Test Conditions Status
Ad Low temperature
start-up test
EN 50155:2017, clause 13.4.4
IEC/EN 60068-2-1
Temperature, duration:
Performance test:
-40 °C, 2 h
+25 °C Not operating
Be Dry heat test
cycle A
EN 50155:2017, clause 13.4.5
IEC/EN 60068-2-2
Temperature:
Duration:
70 °C
6 h
Operating
perf. crit. A
Db 2 Cyclic damp heat
test
EN 50155:2017, clause 13.4.7
IEC/EN 60068-2-30
Temperature:
Cycles (respiration effect)
Duration:
55 °C and 25 °C
2
2x 24 h
Not operating
Ka Salt mist test
sodium chloride
(NaCl) solution
EN 50155:2017, clause 13.4.10
IEC/EN 60068-2-11
Temperature:
Duration:
35
±2
°C
48 h Not operating
-- Functional random
vibration test
EN 50155:2017, clause 13.4.11.4
EN 61373:2010, clause 8,
class B, body mounted
1
Acceleration amplitude:
Frequency band:
Test duration:
0.1 g
n
= 1.01 m/s
2
5 – 150 Hz
30 min (10 min in each axis)
Operating
perf. crit. A
-- Simulated long life
testing
EN 50155:2017, clause 13.4.11.2
EN 61373:2010, clause 9,
class B, body mounted
1
Acceleration amplitude:
Frequency band:
Test duration:
0.58 g
n
= 5.72 m/s
2
5 – 150 Hz
15 h (5 h in each axis)
Not operating
-- Shock test EN 50155:2017, clause 13.4.11.3
EN 61373:2010, clause 10,
class B, body mounted
1
Acceleration amplitude:
Bump duration:
Number of bumps:
5.1g
n
30 ms
18 (3 in each direction)
Operating
perf. crit. A
-- Vibration
sinusoidal
AREMA Part 11.5.1
class C, D, E, I, J
Acceleration amplitude:
Frequency band:
Test duration:
0.3” (5 – 20 Hz)
1.5 g
n
= 14.7 m/s
2
10 – 200 Hz
12 h (4 h in each axis)
Operating
perf. crit. A
-- Mechanical shock AREMA Part 11.5.1
class C, D, E, I, J
Acceleration amplitude:
Bump duration:
Number of bumps:
10 g
n
= 98 m/s
2
11 ms
18 (3 in each direction)
Operating
perf. crit. A
1
Body mounted = chassis of a railway coach
EN 50155:2017 STANDARD
Nominal
Input
Permanent
Input Range
(0.7 - 1.25 Vin)
Brownout
100ms
(0.6 x Vin)
Transient
1s
(1.4 x Vin)
24V 16.8V – 30V 14.4V 33.6V
28V 19.6V – 35V 16.8V 39.2V
36V 25.2V – 45V 21.6V 50.4V
48V 33.6V – 60V 28.8V 67.2V
72V 50.4V – 90V 43.2V 100.8V
96V 67.2V – 120V 57.6V 134.4V
110V 77V – 137.5V 66V 154V
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WDC_IRV300 Series.A01.D29 Page 16 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
Output Voltage Adjustment
The output voltage can be adjusted higher (trimming-up) or lower (trimming-down) than the nominal voltage by connecting an external resistor
across VO_UP and VO_ADJ or VO_DOWN and VO_ADJ at the control connector. Short-circuit VO_UP and VO_ADJ will set output voltage to
maximum. Short-circuit VO_DOWN and VO_ADJ will set output voltage to minimum.
To adjust output voltage Vo higher than nominal voltage for IRV300-12:
External resistor R_UP for trimming-up
R_UP = 0.4645(13.8-Vo)/(Vo-12) (kΩ)
To adjust output voltage Vo lower than nominal voltage for IRV300-12:
External resistor R_DOWN for trimming-down
R_DOWN = 1.3(Vo-11)/(12-Vo) (kΩ)
To adjust output voltage Vo higher than nominal voltage for IRV300-24:
External resistor R_UP for trimming-up
R_UP = 0.2753(26.4-Vo)/(Vo-24) (kΩ)
To adjust output voltage Vo lower than nominal voltage for IRV300-24:
External resistor R_DOWN for trimming-down
R_DOWN = 2.61(Vo-21.6)/(24-Vo) (kΩ)
To adjust output voltage Vo higher than nominal voltage for IRV300-54:
External resistor R_UP for trimming-up
TBD
To adjust output voltage Vo lower than nominal voltage for IRV300-54:
External resistor R_DOWN for trimming-down
TBD
Model Trim Down Trim Up
IRV300-12W80 Vout=11.0V Vout=13.2V
R_DOWN=0Ω R_UP= 0.232kΩ
IRV300-24W80 Vout=21.6V Vout=26.4V
R_DOWN=0Ω R_UP=0Ω
IRV300-54W80 Vout=48.0V Vout=57.0V
R_DOWN=TBD R_UP=TBD
J3 PIN#1 VO_UP
J3 PIN#3 VO_ADJ
External resistor connection for Vo trimming-up
R_UP
J3 PIN#5 VO_DOWN
J3 PIN#3 VO_ADJ
External resistor connection for Vo trimming-down
R_DOWN
External resistor connection diagram for output voltage adjustment
TECHN
ICAL N
OTE
S
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WDC_IRV300 Series.A01.D29 Page 17 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
Hold Up Option
Hold Up feature ensures the output uninterrupted for no less than 10mS at full load when the input voltage drops lower than 14.4V. When input
voltage drops to lower than VIN_OFF (refer to PUL section) but is higher than 14.4V, a 100mS timer is set. If the input voltage doesn’t recover to
above VIN_ON in 100mS, the timer will be reset, the converter will shut down. If the input voltage drops lower than 14.4V, Hold Up circuit starts
to work to keep the output uninterrupted. The converter will shut down if the output voltage starts to drop and cause the open-collector P_OK+
signal to be released (to open status) or the timer is reset.
PUL Specification and Recommended External Fuse
IRV300 Series PUL table and formula for PUL resistor selection and calculation of battery under voltage protection setup.
Battery R_PUL VIN_ON VIN_OFF External Fuse
24V Not connected 16.4V 15.5V 25A fast, Littelfuse 0314025
36V 267kΩ 19.9V 17.9V 20A fast, Littelfuse 0314020
48V 82.5kΩ 28.7V 26.3V 15A fast, Littelfuse 0314015
72V 48.7kΩ 37.5V 33.6V 12A fast Littelfuse 0314012
96V 22kΩ 63.6V 57.5V 8A fast Schurter 8020.5077.G
110V 18.7kΩ 72.4V 65.3V 8A fast Schurter 8020.5077.G
Input under voltage turn off could be setup by selecting PUL resistor given in the table above. The resistor value could also be calculated
based on the preferred turn-off voltage that customers select for battery protection.
R_PUL = 953.62/(VIN_OFF-14.4)
Where R_PUL is PUL resistor in kΩ, VIN_OFF is the turn-off voltage in Volt. Corresponding turn-on voltage VIN_ON is
VIN_ON = 15.95(R_PUL+66.23)/R_PUL
When input voltage drops lower than VIN_OFF, the converter will continue operating 100mS before turning off the output. When input voltage
drops lower than 14.4V, the converter enters input interruption mode. The hold-up circuit will keep the output uninterrupted for no less than
10mS under nominal load output. The converter will be shut down if input voltage is not recovered to above 16V afterward.
P_OK+ Signal
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WDC_IRV300 Series.A01.D29 Page 18 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
ORing FET Option
ORing FET feature allows outputs of multiple units to be connected in parallel when high output power is required or when N+1 redundancy
operation is required.
The units in parallel have passive current sharing. To put units in parallel operation, load line has to be enabled on each unit by connecting the
LL_EN pin to VOUTN pin on the control connector. The output voltage will drop with the increase of output current by 10mV/A for 12V and 24V
model, 100mV/A for 54V model.
The output power cables should have the same gauge and length for each unit from the output connector to the meeting points to the load to
ensure balanced power output for each unit.
+Vin
-Vin
EARTH
LL_EN
VOUTN
-Vout
+Vout
Converter 1
+Vin
-Vin
EARTH
LL_EN
VOUTN
-Vout
+Vout
Converter 2
F1
F2
DC Source
EARTH +Vin -Vin
Load
+
-
ORing Feature - Parallel Connection Diagram
Conducted Emission Test, (110Vin, 12V @ 24A out) Radiated Emission Test, (110Vin, 12V @ 24A out)
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WDC_IRV300 Series.A01.D29 Page 19 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
MECHANICAL SPECIFICATIONS
IP30 (2.5mm Objects*)
(*Will not permit parts larger than a standard M3 flat washer to fall inside)
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WDC_IRV300 Series.A01.D29 Page 20 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
PIN 1: VO_UP, for output voltage adjustment. When a
resistor is connected between VO_UP and VO_ADJ (PIN 3),
the output voltage will be set to a value that is higher than
nominal voltage (12V for IRV300-12, 24V for IRV300-24).
When the connected resistor is zero (short-circuiting PIN 1
and PIN 3), the output voltage is set to maximum (13.8V for
IRV300-12, 26.4V for IRV300-24 and 57V for IRV300-54).
PIN 2: P_OK+, open collector output . When the output
voltage is higher than 10.5V for IRV300-12 (20.5V for
IRV300-24 and 43.8V for IRV300-54), the voltage between
P_OK+ (PIN 2) and VOutN (PIN 4) is pull down to less than
0.8V.
PIN 3: VO_ADJ, for output voltage adjustment. Used with
PIN 1 or PIN 5 to set the output voltage higher or lower than
nominal voltage.
PIN 4: VOUTN, used with P_OK+ (PIN 2) for output voltage
status. This pin is internally connected to the negative
terminal of the output connector.
PIN 5: VO_DOWN, for output voltage adjustment. When a
resistor is connected between VO_DOWN and VO_ADJ
(PIN3), the output voltage will be set to a value that is lower
than nominal voltage. When the connected resistor is zero
(short-circuiting PIN5 and PIN3), the output voltage is set to
minimum (11 for IRV300-12, 21.6V for IRV300-24, 47V for
IRV300-54).
PIN 6: LL_EN, for units with output ORing feature. Connect
this pin to VOUTN (PIN 4) will enable output voltage droop
with the increase of load current. This pin must be
connected to VOUTN (PIN 4) before connecting outputs in
parallel and enabling the ORing function.
PIN 7: and PIN 8: No connection
PIN 9: PUL1 and PIN 10: PUL2, for Programmable Under
voltage Lockout (PUL).
PIN 11: ON/OFF+, for output inhibit. Output is OFF when
this pin is pull down to lower than 0.8V with reference to
VINN (PIN 12). For output ON state, leave this pin open or
connect and keep its voltage higher than 4V.
PIN 12: VINN, this pin is internally connected to the
negative terminal of the input connector.
J1 OUTPUT
PIN #
FUNCTION
1
+Vout
2
-
Vout
J2 INPUT
PIN #
FUNCTION
1
-
Vin
2 +Vin
3
GND
J3 CONTROL
PIN #
FUNCTION
1
VO_UP
2
P_OK+
3 VO_ADJ
4
VOUTN
5 VO_DOWN
6 LL_EN
7
No Connection
8 No Connection
9
PUL1
10
PUL2
11 ON/OFF+
12
VINN
PIN FUNCTION & DESCRIPTION (J3 CONTROL)
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WDC_IRV300 Series.A01.D29 Page 21 of 21
IRV300 Series
300W 10:1 Ultra Wide Input Chassis-Mount
Isolated DC-DC Converter
Murata Power Solutions, Inc.
129 Flanders Road, Westborough, MA 01581 USA
ISO 9001 and 14001 REGISTERED
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice. © 2020 Murata Power Solutions, Inc.
IRV300
-
MCK (MATING CONNECTOR KIT)
SH
I
PPING TRAYS AND BOX
MPQ = 4
MPQ =
4 SETS
J1 MATE: WEIDMULLER #1060550000
J2 MATE: WEIDMULLER #1060580000
J3 MATE: WAGO #713-1106/037-000
