AN1376 datasheet(1/35 Pages) STMICROELECTRONICS

tên linh kiện	AN1376

Giải thích chi tiết về linh kiện	25W QUASI-RESONANT FLYBACK CONVERTER FOR

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AN1376

APPLICATION NOTE

1

INTRODUCTION

Set-Top Boxes are growing very fast and they are becoming very popular in all Countries ei-

ther for satellite or cable decoding. Hence the market is asking for solutions having high cost

effectiveness, providing for good performances, low noise, small volumes at low cost. 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.

The board has been designed with mixed technology components, both PTH and SMT. For

this reason some components are doubled, in accordance with their ratings.

25W QUASI-RESONANT FLYBACK CONVERTER FOR

SET-TOP BOX APPLICATION USING THE L6565

This document describes a reference design of a 25W Switch Mode Power Supply

dedicated to Set-Top Box application. The board accepts full range input voltage (90 to

265Vrms) and delivers 5 outputs. It is based on the new controller L6565, working in

variable frequency mode.

AN1376/0904

Rev. 2

Số phần tương tự - AN1376

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