GE Industrial Solutions JRW450U Orca Series - Manual (Page 4)

GE
Data Sheet
JRCW450U Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 48.0Vdc Output; 450W Output
June 7, 2013 ©2012 General Electric Company. All rights reserved. Page 4
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter Device Symbol Min Typ Max Unit
Remote On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to V
IN-
terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low - Remote On/Off Current All I
on/off
  1.0 mA
Logic Low - On/Off Voltage All V
on/off
0  0.8 V
dc
Logic High Voltage – (Typ = Open Collector) All V
on/off
 5 V
dc
Logic High maximum allowable leakage current All I
on/off
  50 μA
Turn-On Delay and Rise Times
(Vin=V
in,nom
, I
O
=I
O, max
, 25C)
Case 1: T
delay
= Time until V
O
= 10% of V
O,set
from application of V
in
with Remote On/Off set to ON
All T
delay
120 ms
Case 2: T
delay
= Time until V
O
= 10% of V
O,set
from application of
Remote On/Off from Off to On with V
in
already applied for at
least one second.
All T
delay
 20 ms
T
rise
= time for V
O
to rise from 10% of V
O,set
to 90% of V
O,set
. All T
rise
 60 
Synchronous Rectifier Activation Level and Delay*
Minimum I
OUT
to activate synch rectifier mode I
OUT,SYNC
2.4 A
Minimum time to activate synch rectifier mode (I
OUT
> I
OUT,SYNC
) T
SYNC
1 ms
Output Voltage Overshoot
3 % V
O, set
(I
O
=80% of I
O, max
, T
A
=25°C)
Output Voltage Adjustment
(See Feature Descriptions):
Output Voltage Remote-sense Range
(only for No Trim or Trim down application )
All V
sense
__ __
2 %V
o,nom
Output Voltage Set-point Adjustment Range (trim) All V
trim
28.8 --- 57.6 V
dc
Output Overvoltage Protection (T
A
=25C) All V
O, limit
60  65 V
dc
Over Temperature Protection All T
ref
 115  °C
(See Feature Descriptions, Figure 19)
Input Under Voltage Lockout V
IN, UVLO
Turn-on Threshold All 35 36 V
dc
Turn-off Threshold All 31 32 V
dc
Hysteresis All 2.5 3 V
dc
Input Over voltage Lockout V
IN, OVLO
Turn-on Threshold All  79.5 81 V
dc
Turn-off Threshold All 80 83  V
dc
Hysteresis All 2.5 3 --- V
dc
* Note: Module has internal circuit that inhibits output synchronous rectifier mode, during module startup, until I
OUT
> I
OUT,SYNC
for
time> T
SYNC
. Once output synchronous mode is activated, module remains in synchronous rectifier mode, even if load is reduced to
0A, until module output is turned off using on/off pin or loss of input voltage.