QHW075F1-Q Datasheet, PDF (1/20 Pages) Lineage Power Corporation – QHW050F1-Q, QHW075F1-Q, and QHW100F1-Q Power Modules; dc-dc Converters: 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 66 W

Data Sheet
April 2008
QHW050F1-Q, QHW075F1-Q, and QHW100F1-Q Power Modules;
dc-dc Converters: 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 66 W
Features
The QHW Series Power Modules use advanced, surface-
mount technology and deliver high-quality, efficient, and
compact dc-dc conversion.
Applications
n Distributed power architectures
n Communications equipment
n Computer equipment
Options
n Heat sinks available for extended operation
n Auto-restart after overtemperature, overvoltage, or
overcurrent shutdown
n Choice of short pin lengths
n Case ground pin
n Small size: 36.8 mm x 57.9 mm x 12.7 mm
(1.45 in. x 2.28 in. x 0.50 in.)
n High power density
n Extra high efficiency: 85% typical
n Low output noise
n Constant frequency
n Industry-standard pinout
n Metal baseplate
n 2:1 input voltage range
n Overvoltage and overcurrent, overtemperature
protection
n Negative remote on/off
n Remote sense
n Adjustable output voltage
n ISO* 9001 and ISO 14001 Certified manufacturing
facilities
n UL^†60950 Recognized, CSA^‡ C22.2 No. 60950-00
Certified, and VDE ^§ 0805 (EN60950) Licensed
n CE mark meets 73/23/EEC and 93/68/EEC direc-
tives**
* ISO is a registered trademark of the International Organization
for Standardization.
† UL is a registered trademark of Underwriters Laboratories, Inc.
‡ CSA is a registered trademark of Canadian Standards Associa-
tion.
§ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
Description
The QHW050F1-Q, QHW075F1-Q, and QHW100F1-Q Power Modules are dc-dc converters that operate over
an input voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully
isolated from the inputs, allowing versatile polarity configurations and grounding connections. The modules
have maximum power ratings from 33 W to 66 W at a typical full-load efficiency of 85%.
The sealed modules offer a metal baseplate for excellent thermal performance. Threaded-through holes are pro-
vided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard feature set
includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power applications.