Data Sheet
GE
CAR1212DC series DC-DC converter
Input: -36VD C to -75VDC; Output: 12VDC @ 1200W; 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
Max
75
Unit
VDC
°C
Input Voltage: Continuous
Operating Ambient Temperature
TA
-10
701
Storage Temperature
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
Typ
Max
Unit
Operational Range
12VDC output turned OFF
12VDC output turned ON
Idling Power
-36
-48/60
-75
-35
-36
35
VIN
VDC
12VDC output OFF
12VDC output ON
VIN= -36VDC
W
IIN
IIN
W
45
Maximum Input Current
38
40
ADC
(VOUT= VO, set, IOUT=IO, max
)
Cold Start Inrush Current
APEAK
(Excluding x-caps, 25°C, <10ms, per ETSI 300-132)
Efficiency
90
%
η
(Tamb=25°C, VIN= -48VDC, VOUT= 12VDC, 60-80% load)
Holdup time (VIN= -48VDC, VOUT ≥ 10.8Vdc, TAMB 25°C, IOUT=IO, max
T
2.5
ms
)
Isolation
Input/Output
Input/Frame
Output/Frame
1500
1500
100
VDC
VDC
VDC
12VDC MAIN OUTPUT
Parameter
Symbol
Min
Typ
Max
Unit
Output power
Set point
POUT
0
11.9
1200
12.1
W
VDC
@ 50% load
12.00
Overall regulation (load, temperature)
-2
+2
%
VOUT
Remote sense
sum of hot & return
0.25
VDC
Ripple and noise2
120
mVp-p
1 Derated above 50°C at 2.5%/°C
2 Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. 20MHz bandwidth
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 2
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