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 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 device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage*
Continuous V
IN
-0.3 75 V
dc
Operating transient ≤ 100mS 100 V
dc
Non- operating continuous V
IN
80 100 V
dc
Operating Ambient Temperature All T
A
-40 85 °C
(See Thermal Considerations section)
Storage Temperature All T
stg
-55 125 °C
I/O Isolation Voltage (100% factory Hi-Pot tested) All
 
2250 V
dc
* Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage V
IN
36 48 75 V
dc
Maximum Input Current
I
IN,max
- - 12 A
dc
(V
IN
=0V to 75V, I
O
=I
O, max
)
Input No Load Current
All I
IN,No load
80 mA
(V
IN
= V
IN, nom
, I
O
= 0, module enabled)
Input Stand-by Current
All I
IN,stand-by
22 mA
(V
IN
= V
IN, nom
, module disabled)
External Input Capacitance All 100 - - μF
Inrush Transient All I
2
t - - 1 A
2
s
Input Terminal Ripple Current
(Measured at module input pin with maximum specified input
capacitance and ൏ 500uH inductance between voltage source
and input capacitance)
5Hz to 20MHz, V
IN
= 48V, I
O
= I
Omax
All - 350 - mA
rms
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
= 48V, I
O
= I
Omax
; see
Figure 11)
All - 40 - mA
p-p
Input Ripple Rejection (120Hz) All - 25 - dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part
of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum
safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating
of 30 A in the ungrounded input lead of the power supply (see Safety Considerations section). Based on the information provided in
this Data Sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to
the fuse manufacturer’s Data Sheet for further information.