STEVAL-ISA016V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Switch mode Quasi-Resonant Flyback Power Supply

STEVAL-ISA016V1
Power supply for STB based on L6565 (EU-220V)
Data Brief
Features
■ Switch mode Quasi-Resonant Flyback Power
Supply
■ Input: 185 to 265 Vac (European version)
■ Switching frequency: 50/60 Hz
■ Output1: 12V @ 500mA delivering 6W with
±10% of stability
■ Output2: 8V @ 40mA delivering 0.32W with
±15% of stability
■ Output3: 5V @ 1A delivering 5W with ±5% of
stability
■ Output4: 3.3V @ 450mA delivering 1.485W
with ±2% of stability
■ Output5: 1.23V @ 1A delivering 5W with ±5%
of stability
■ Output6: 2.5V @ 0.7A delivering 1.75W with
±2% of stability
General description
This document describes a reference design of a
17W Switch Mode Power Supply dedicated to
Set-Top Box applications. The board accepts
European input voltages (90 to 265Vrms) and
delivers up to 6W outputs. It is based on the
L6565 quasi resonant SMPS controller, working in
variable frequency mode.
The Quasi-resonant operation and the high
flexibility of the L6565 make it a very suitable
device, able to satisfy all the requirements with
only few external components.
STEVAL-ISA016V1
ST components
■ STTH108 High Voltage Ultrafast Rectifier, 1A,
800V
■ SMBYW02-200 High Efficiency Fast Recovery
Rectifier Diode, 2A, 200V
■ STPS5L40 Power Schottky Rectifier, 5A, 40V
■ STPS5L25B low drop power Schottky Rectifier,
3A, 40V
■ STPS340 Power Schottky Rectifier, 3A, 40V
■ L6565 Quasi Resonant SMPS controller
■ L5973D step down switching regulator up to
2.5A
■ LD29080DT25, 800mA fixed and adjustable
output, very low dropout voltage regulator
■ STD3NK80Z N-channel zener protected
SuperMESH Power MOSFETs, 800V, 3.2
Ohm, 2.5A
October 2006
Rev 1
For further information contact your local STMicroelectronics sales office.
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