GE Industrial Solutions CAR2548DC series - Manual (Page 2)

GE Data Sheet
CAR2548DC series dc-dc converters
Input: -36Vdc to -75Vdc; Output: 48Vdc @ 2500W; 3.3Vdc or 5 Vdc @ 1A
December 6, 2013 ©2013 General Electric Company. All rights reserved. Page 2
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 Min Max Unit
Input Voltage: Continuous V
IN
0 75 V
ac
Operating Ambient Temperature T
A
-10 70 1 °C
Storage Temperature T
stg
-40 85 °C
I/O Isolation voltage (100% factory Hi-Pot tested) 1500 V
DC
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
V
IN
-36 -48/60 -75
V
DC
48Vdc output turned OFF -36
48Vdc output turned ON -42 -45 -48
Idling Power, 48Vdc output OFF
W
35
W
48Vdc output ON 45
Maximum Input Current (V
IN
= 37.5Vdc, V
O
= V
O, set
, I
O
=I
O, max
) I
IN
75 A
DC
Cold Start Inrush Current (Excluding x-caps, 25C, <10ms,
per ETSI 300-132)
I
IN
75 A
PEAK
Efficiency (T
amb
=25C, V
in
= -48Vdc, V
out
= 48Vdc); 100% load

90
91
87
% 30 – 50% load
20% load
Holdup time
2 (V
in
= -48Vdc, V
out
= 48V
dc
, T
amb
25C, I
O
=I
O, max
) T 4 ms
Loss of Output Early Warning Signal T 1 ms
Isolation; Input/Output 1500 V
DC
Input/Frame 1500 V
DC
Output/Frame 1000 V
DC
Input capacitance F 25 µf
48V
DC
MAIN OUTPUT
Parameter Symbol Min Typ Max Unit
Output power P
OUT
0 2500 W
Set point, @ 50% load
V
OUT
47.5 48.00 48.5 V
DC
Overall regulation (load, temperature, aging) -2 +2 %
Linear droop, NL to FL 0.1 V
DC
Remote sense (sum of hot & return) 0.25 V
DC
Ripple and noise 3 500 mV
p-p
1 Derated above 50C at 2.5%/C
2 Full load w/5,000µf external output capacitance, Output may droop down to 44Vdc.
3 Measured across a 10µf tantalum and a 0.1µf ceramic capacitors in parallel. 20MHz bandwidth