QBVW025A0B Datasheet, PDF (1/19 Pages) Vishay Siliconix – 36-75Vdc Input; 12Vdc Output; 25A Output Current

GE
Data Sheet
QBVW025A0B Barracuda* Series; DC-DC Converter Power Modules
36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output
RoHS Compliant
Applications
 Distributed power architectures
 Intermediate bus voltage applications
 Servers and storage applications
 Networking equipment including Power over Ethernet
(PoE)
 Fan assemblies and other systems requiring a tightly
regulated output voltage
Options
 Negative Remote On/Off logic (1=option code, factory
preferred)
 Auto-restart after fault shutdown (4=option code,
factory preferred)
 Remote Sense and Output Voltage Trim (9=option
code)
 Base plate option (-H=option code)
 Passive Droop Load Sharing (-P=option code)
Features
 Compliant to RoHS II EU “Directive 2011/65/EU (-Z versions)
 Compliant to REACH Directive (EC) No 1907/2006
 High and flat efficiency profile – >95.5% at 12Vdc, 40% load to
100% output
 Wide Input voltage range: 36-75Vdc
 Delivers up to 25Adc output current
 Fully very tightly regulated output voltage
 Low output ripple and noise
 Industry standard, DOSA Compliant Quarter brick:
58.4 mm x 36.8 mm x 11.7 mm
(2.30 in x 1.45 in x 0.46 in)
 Constant switching frequency
 Positive Remote On/Off logic
 Output over current/voltage protection
 Over temperature protection
 Wide operating temperature range (-40°C to 85°C)
 ANSI/ UL^# 60950-1-2011 Recognized, CAN/CSA^† C22.2
No.60950-1-07, Second Edition + A1:2011 (MOD) Certified IEC
60950-1:2005 (2nd edition) + A1:2009 and EN 60950-1:2006 +
A11:2009 + A1:2010 + A12:2011, and VDE‡ 0805-1 Licensed
 CE mark to 2006/96/EC directive^§
 Meets the voltage and current requirements for ETSI 300-
132-2 and complies with and licensed for Basic insulation
rating per EN60950-1
 2250 Vdc Isolation tested in compliance with IEEE 802.3^¤ PoE
standards
 ISO** 9001 and ISO14001 certified manufacturing facilities
Description
The QBVW025A0B Barracuda series of dc-dc converters are a new generation of fully regulated DC/DC power modules designed
to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load
(POL) converters, as well as other application requiring a tightly regulated output voltage. The QBVW025A0B series operate from
an input voltage range of 36 to 75Vdc and provide up to 25A output current at output voltages of 12Vdc in an industry standard,
DOSA compliant quarter brick. The converter incorporates digital control, synchronous rectification technology, a fully regulated
control topology, and innovative packaging techniques to achieve efficiency exceeding 96% at 12V output. This leads to lower
power dissipations such that for many applications a heat sink is not required. Standard features include on/off control, output
overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout.
The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-in filtering
for both input and output minimizes the need for external filtering.
* Trademark of General Electric Company
# UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
§ This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed.
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
** ISO is a registered trademark of the International Organization of Standards.
May 9, 2013
©2012 General Electric Company. All rights reserved.
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