GE Industrial Solutions QBDW025A0B Barracuda Series - Manual (Page 4)

GE
Data Sheet
QBDW025A0B Barracuda Series; DC-DC Converter Power Modules
36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output
May 9, 2013 ©2012 General Electric Company. All rights reserved. Page 4
Isolation Specifications
Parameter Symbol Min Typ Max Unit
Isolation Capacitance C
iso
 1000  pF
Isolation Resistance R
iso
10   MΩ
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
, Signal referenced to V
IN-
terminal)
Negative Logic: device code suffix “1”
Logic LO = module On, Logic HI = module Off
Positive Logic: No device code suffix required
Logic LO = module Off, Logic HI = module On
Logic LO Specification
On/Off Thresholds:
Remote On/Off Current – Logic LO (Vin =100V) All I
on/off
280  310 μA
Logic LO Voltage All V
on/off
-0.3  0.8 V
dc
Logic HI Voltage – (Typ = Open Collector) All V
on/off
2.0  14.5 V
dc
Logic HI maximum allowable leakage current
(V
on/off
= 2.0V)
All I
on/off
  10 μA
Maximum voltage allowed on On/Off pin All V
on/off
  14.5 V
dc
TON_DELAY and TON_RISE (Adjustable via PMBus)
T
delay
=Time until V
O
= 10% of V
O,set
from either
application of Vin with Remote On/Off set to On (Enable
with Vin); or operation of Remote On/Off from Off to On
with Vin already applied for at least 150 milli-seconds
(Enable with on/off). (I
O
=I
O, max
)
* Increased T
delay
due to startup for parallel modules.
All w/o -P T
delay
,
Enable with Vin
  150 ms
All w/o-P
T
delay, Enable with
on/off
  10 ms
w/ -P T
delay
,
Enable with Vin
  180* ms
w/ -P
T
delay, Enable with
on/off
  40* ms
T
rise
=Time for V
O
to rise from 10% to 90% of V
O,set
, For
C
O
>5000uF, I
O
must be < 50% I
O, max
during T
rise
.
* Increased T
rise
when Vo exists at startup for parallel
modules.
All w/o -
P
T
rise
  15 ms
w/ -P T
rise
  300* ms
Load Sharing Current Balance
(difference in output current across all modules with
outputs in parallel, no load to full load)
-P
Option
I
diff
3 A
Remote Sense Range All V
Sense
  0.5 V
dc
VOUT_COMMAND
(Adjustable via PMBus)
All V
O, set
8.1 13.2 V
dc
VOUT_OV_FAULT_LIMIT (Adjustable via PMBus)
All V
O,limit
V
O,set-
+2.5V
V
O,set-
+5.0V
V
dc
OT_FAULT_LIMIT (Adjustable via PMBus) All T
ref
 140  °C
Input Undervoltage Lockout (Adjustable via PMBus)
VIN_ON 33 35 36 V
dc
VIN_OFF 31 33 34 V
dc
Input Overvoltage Lockout
(Adjustable via PMBus)
Turn-off Threshold [VIN_OV_FAULT_LIMIT]
 85  V
dc
Turn-on Threshold
(follows VIN_OV_FAULT_LIMIT -7V)
 78  V
dc
Pull down resistance of PGOOD pin
Sink current capability into PGOOD pin (V
PG
=2.2V)
All
All 150
15
Ω
mA