Data Sheet
GE
CAR0812DC Series DC-DC Converter
Input: -36VDC to -75VDC; Output: +12 VDC @ 850W; 3.3VDC or 5 VDC @ 1A
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter
Symbol
VIN
Min
+0.3
-10
Max
-75
701
Unit
VDC
°C
Input Voltage: Continuous
Operating Ambient Temperature
Storage Temperature
TA
Tstg
-40
85
°C
I/O Isolation voltage (100% factory Hi-Pot tested)
1500
VDC
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, load, and temperature conditions.
INPUT
Parameter
Symbol
Min
-36
-32
-33
Typ
-48/60
-33
Max
-75
-35
-36
Unit
VDC
VDC
VDC
Operational Range
VIN
VIN
VIN
12VDC output turned OFF
12VDC turned ON
-35
Maximum Input Current
IIN
IIN
27.1
40
ADC
(VIN= -36VDC, VOUT= VO, set, IOUT=IO, max
Cold Start Inrush Current
(Excluding x-caps, 25C, <10ms, per ETSI 300-132)
)
Apeak
Efficiency (TAMB=25C, VIN=-48VDC, VOUT=12VDC
)
80
10% load
20% load
50% load
100% load
88
92
89
%
T
22
ms
VDC
Holdup time – 12VDC(Tamb 25C, VIN -48VDC, Cext 5,000µf)
Isolation TAMB=25C, VIN=-48VDC, VOUT=12VDC - Input/Output
Input/Frame
1500
1500
100
1 minute per IEC/EN 60950-1) Output/Frame
Ground lug
Connection required to meet EMI performance
12Vdc MAIN OUTPUT
Parameter
Symbol
Min
Typ
Max
Unit
Output power
POUT
0
11.98
-3
850
12.02
+3
WDC
VDC
%
Set point
12.00
Overall regulation (load, temperature, aging)
Ripple and noise3
VOUT
120
+3
mVp-p
%
Turn-ON overshoot
Turn-ON delay
T
2
sec
1 Derated above 50C at 2.5%/C
2
Full load, with 5,000µf external capacitance, 12Vdc set point, droop to 10.8Vdc permitted, > -48Vdc input
3 Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. For Vin > 60Vdc the PARD is relaxed to 150mVp-p
.
April 23, 2013
©2013 General Electric Company. All rights reserved.
Page 2
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