QBE025A0B1 Datasheet, PDF (1/16 Pages) Lineage Power Corporation – 42 - 53Vdc input; 12Vdc Output; 25A output current

Data Sheet
March 27, 2008
QBE025A0B Series Power Modules, DC - DC Converters:
42 – 53Vdc Input; 12Vdc Output; 25A Output Current
RoHS Compliant
Applications
ƒ Distributed power architectures
ƒ Intermediate bus voltage applications
ƒ Telecommunications equipment
ƒ Servers and storage applications
ƒ Networking equipment
Options
ƒ Negative Remote On/Off logic
ƒ Active load sharing (Parallel Operation)
ƒ Baseplate option (-H)
ƒ Auto restart after fault shutdown
ƒ Case ground pin
Description
Features
ƒ Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
ƒ Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
ƒ Exceptionally High power density: 173 W/in³
ƒ High efficiency – 94% at 12V full load
ƒ Improved Thermal Performance:
at 70ºC at 1m/s (200LFM)
ƒ Delivers up to 25A output current
ƒ Low output ripple and noise
ƒ Industry standard Quarter brick:
57.9 mm x 36.8 mm x 10.6 mm
(2.28 in x 1.45 in x 0.42 in)
ƒ Cost efficient open frame design
ƒ Single optimal regulated output
ƒ Intermediate input voltage range
ƒ Constant switching frequency
ƒ Positive Remote On/Off logic
ƒ Output over current/voltage protection
ƒ Overtemperature protection
ƒ Wide operating temperature range (-40°C to 85°C)
ƒ ISO* 9001 certified manufacturing facilities
ƒ Complies with and is licensed for Basic Insulation
rating per EN60950-1
ƒ UL** 60950-1 Recognised, CSA^† C22.2 No. 60950-
1-03 Certified, and VDE^‡ 0805 (IEC60950, 3^rd
Edition) Licensed
ƒ CE mark meets 2006/95/EC directive^§
The QBE025A0B series of dc-dc converters are an expansion of a new generation of DC/DC power modules
designed to support 12Vdc intermediate bus applications where multiple low voltages are subsequently generated
using discrete/modular point of load (POL) converters. The QBE025A0B series provide up to 25A output current in
an industry standard quarter brick, which makes it an ideal choice for small space, high current and 12V
intermediate bus voltage applications. The converter incorporates synchronous rectification technology and
innovative packaging techniques to achieve ultra high efficiency reaching 94% at 12V full load. This leads to lower
power dissipation such that for many applications a heat sink is not required.
The QBE025A0B series power modules are isolated dc-dc converters that operate over an input voltage range from
42 to 53 Vdc and provide a single regulated 12V output. 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.
* ISO is a registered trademark of the International Organization of Standards
** 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-use equipment. All of the required procedures of end-use equipment should be followed.
Document No: DS03-078 ver. 1.25
PDF Name: qbus-qbe025a.pdf