Manual
GE
Data Sheet
QBVW033A0B Barracuda Series; DC-DC Converter Power Modules
36-75Vdc Input; 12.0Vdc, 33.0A, 400W Output
May 21, 2013 ©2012 General Electric Company. All rights reserved. Page 3
Electrical Specifications (continued)
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point (V
IN
=V
IN,nom
, I
O
=16.5A, T
A
=25°C) All V
O, set
11.97 12.00 12.03 V
dc
Output Voltage
(Over all operating input voltage (40V to 75V), resistive load, and
temperature conditions until end of life)
All w/o P
Option
V
O
11.76
12.24 V
dc
All w/ P
Option
V
O
11.63
12.37 V
dc
Output Voltage (V
IN
=36V, T
A
= 25ºC) All V
O
11.00
V
dc
Output Regulation [V
IN, min
= 40V]
Line (V
IN
= V
IN, min
to V
IN, max
)
All w/o 9
o
p
tion
0.2
% V
O, set
Line (V
IN
= V
IN, min
to V
IN, max
)
All w/ 9
o
p
tion
0.5
% V
O, set
Load (I
O
=I
O, min
to I
O, max
)
All w/o P or
9
o
p
tion
0.2
% V
O, set
Load (I
O
=I
O, min
to I
O, max
)
All w/ 9
o
p
tion
1.2
% V
O, set
Load (I
O
=I
O, min
to I
O, max
), Intentional Droop
All w/ P
O
p
tion
0.50
V
dc
Temperature (T
A
= -40ºC to +85ºC) All
2
% V
O, set
Output Ripple and Noise on nominal output
(V
IN
=V
IN, nom
and I
O
=I
O, min
to I
O, max
)
RMS (5Hz to 20MHz bandwidth) All
70
mV
rms
Peak-to-Peak (5Hz to 20MHz bandwidth) All
200
mV
pk-pk
External Output Capacitance
For C
O
>5000uF, I
O
must be < 50% I
O, max
during T
rise
. All C
O, max
0
10,000 μF
When 2 or more modules are in parallel -P Option 0 15,000 μF
Output Current All I
O
0 33 A
dc
Output Current Limit Inception All I
O,lim
40
A
dc
Efficiency (V
IN
=V
IN, nom
, T
A
=25°C)
I
O
=100% I
O, max,
V
O
= V
O,set
All 95.5
I
O
=40% I
O, max
to 75% I
O, max ,
V
O
= V
O,set
All η 96.0 %
Switching Frequency f
sw
150 kHz
Dynamic Load Response
dI
O
/d
t
=1A/10s; V
in
=V
in
,
nom
; T
A
=25°C;
(Tested with a 1.0μF ceramic, a 10μF tantalum, and 470μF
capacitor and across the load.)
Load Change from I
O
= 50% to 75% of I
O,max
:
Peak Deviation
Settling Time (V
O
<10% peak deviation)
All
V
pk
t
s
__
500
700
__
mV
pk
s
Load Change from I
O
= 75% to 50% of I
O,max
:
Peak Deviation
Settling Time (V
O
<10% peak deviation)
All
V
pk
t
s
__
__
500
700
__
mV
pk
s
General Specifications
Parameter Symbol Device Typ Unit
Calculated Reliability Based upon Telcordia SR-332 Issue 2:
Method
I, Case 3, (I
O
=80%I
O, max
, T
A
=40°C, Airflow = 200 LFM), 90%
confidence
MTBF All 3,108,685 Hours
FIT All 321.7 10
9
/Hours
Weight – Open Frame 47.4 (1.67) g (oz.)
Weight – with Base plate option 66.4 (2.34) g (oz.)