Preliminary Product Brief *

For Discussion with Tyco Electronics Customers Only – Tyco Electronics Proprietary

I)

This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should be fol lowed.

II)

CSA is a registered trademark of Canadian Standards Association.

III)

UL is a registered trademark of Underwriters Laboratories, Inc.

IV)

VDE is a trademark of Verband Deutcher Elektrotechniker e.V.

(approval pending)

The

QRW-series

dc-dc

converters

are

a

new

generation of DC/DC power modules designed for

optimum efficiency and power density. The QRW

provides up to 40A output current in an industry

standard quarter brick, which makes it an ideal choice

for small space, high current and low voltage

applications.

The

converter

uses

synchronous

rectification technology and innovative packaging

techniques to achieve ultra high efficiency reaching

91% at 3.3V full load. Thanks to the ultra high

efficiency of this converter, the power dissipation is

such that for most applications a heat sink is not

required. In addition, the QRW-series supports future

migration of semiconductor and microprocessor supply

voltages down to 1.0V.

QRW 40A single output series

•

Delivers up to 40A output current

•

Ultra High Efficiency: 91% @ 3.3V full load

•

Improved Thermal Performance:

25A at 70

°C at 1ms

•

High power density: 100W/in³

•

Low output voltages down to 1V:

supports migration to future IC and

microprocessor supply voltages

•

Active load sharing option: Paralleling

•

Cost efficient open frame design

•

Optional heat-sink: to permit operation

over extended ambient temperature ranges

Applications

•

Wireless Networks

•

Access and Optical Network Equipment

•

Enterprise Networks

•

Latest generation ICs (DSP, FPGA, ASIC)

and Microprocessor powered applications

Specification

•

Tightly regulated output, typical ±1%

•

Monotonic start-up into pre-biased output

•

Output voltage adjustment trim +10% / -20%

•

Load regulation

± 0.2%

•

Line regulation

± 0.2%

•

No minimum load required

•

Ripple and noise (5Hz to 20MHz bandwidth)

•

Operating temperature range: -40

°C to 110°C

•

Designed to meet basic insulation

•

1500Vdc isolation voltage

•

Remote output voltage sensing

Protection

•

Output overcurrent and overvoltage protection

•

Over-temperature protection

•

Input under voltage protection

Options

•

Positive remote on/off logic

•

Active load sharing (Paralleling)

•

Case ground pin

•

Auto restart after fault shutdown

•

Heatsink

Industry standard Quarter brick DC/DC converter,

36Vdc-75Vdc (48V) input voltage range,

Output voltages available from 12V-1.0V

I

II

III

IV

Phone: 800-253-0490

Fax: 408-732-2002

www.xp-foresight.com