Preliminary Product Brief *
For Discussion with Tyco Electronics Customers Only – Tyco Electronics Proprietary
Phone: 800-253-0490
Fax: 408-732-2002
www.xp-foresight.com
QRW 40A single output series
Industry standard Quarter brick DC/DC converter,
36Vdc-75Vdc (48V) input voltage range,
Output voltages available from 12V-1.0V
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Delivers up to 40A output current
Ultra High Efficiency:
91% @ 3.3V full load
Improved Thermal Performance:
-1
25A at 70°C at 1ms (200LFM)
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
•
•
I
II
III
IV
(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.
Specification
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•
•
•
•
•
•
•
•
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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)
– RMS 40mV
rms
(3.3V)
– Peak to peak 150mV
pk-pk
(3.3V)
Operating temperature range: -40°C to 110°C
Designed to meet basic insulation
1500Vdc isolation voltage
Remote output voltage sensing
Protection
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•
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Output overcurrent and overvoltage protection
Over-temperature protection
Input under voltage protection
Applications
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Wireless Networks
Access and Optical Network Equipment
Enterprise Networks
Latest generation ICs (DSP, FPGA, ASIC)
and Microprocessor powered applications
Options
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Positive remote on/off logic
Active load sharing (Paralleling)
Case ground pin
Auto restart after fault shutdown
Heatsink
I)
II)
III)
IV)
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.
CSA is a registered trademark of Canadian Standards Association.
UL is a registered trademark of Underwriters Laboratories, Inc.
VDE is a trademark of Verband Deutcher Elektrotechniker e.V.
QRW 40A single output series
High Efficiency Industry Standard Quarter Brick
Outline Drawing and Pin-out
Physical Dimensions and design
Industry standard, Quarter brick size
with external dimensions of
57.9mm x 36.8mm x 9.5mm
(2.28” x 1.45” x 0.375”)
Weight 38.0g (1.34oz)
The QRW series has a robust open frame
construction able to withstand industry
standard, through-hole handling, soldering
and cleaning processes.
June 01
Page Number
Ordering Information
Please contact your Tyco Electronics sales representative for pricing, availability and optional features.
Product codes
QRW010A0B1
QRW025A0A1
QRW035A0F1
QRW035A0G1
QRW040A0D1
QRW040A0Y1
QRW040A0M1
QRW040A0P1
QRW040A0S1R01
Input Voltage
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
48V (36-75Vdc)
Output
Voltage(s)
12V
5V
3.3V
2.5V
2.0V
1.8V
1.5V
1.2V
1.0V
Output Current
10A
25A
35A
35A
40A
40A
40A
40A
40A
Efficiency
92%
92%
91%
90%
T.B.D
87%
85%
84%
83%
Connector Type
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
Through hole
Comcodes
T.B.D
T.B.D
T.B.D
T.B.D
T.B.D
T.B.D
T.B.D
T.B.D
T.B.D
-1 Standard negative remote on/off logic
Phone: 800-253-0490
Fax: 408-732-2002
www.xp-foresight.com
* This preliminary product brief is only for discussion with customers to determine customer interest and requirements. Tyco Electronics makes no commitment to sample or
manufacture for sale this product. Tyco Electronics reserves the right to make changes to the product(s) or information contained herein without notice and makes no
representation with respect to the accuracy of the information herein. No liability is assumed as a result of their use or application. No rights under any patent accompany the
sale of any such product(s) or information.
© 2001 Tyco Electronics Power Systems, Inc., (Mesquite, Texas) All International Rights Reserved.
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