L6566A集成电路（IC）的ACDC转换器离线开关规格书PDF中文资料

L6566A属于集成电路（IC）的ACDC转换器离线开关。由意法半导体集团制造生产的L6566AAC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。

描述 Description

The L6566A is an extremely versatile current-mode primary controller IC specifically designed for high-performance offline flyback converters operated from front-end power factor correction (PFC) stages in applications in compliance with EN61000-3-2 or JEITA-MITI regulations.

特性 Features

■ Selectable multi-mode operation: fixed frequency or quasi-resonant

■ Onboard 700 V high-voltage startup

■ Advanced light load management

■ Low quiescent current (< 3 mA)

■ Adaptive UVLO

■ Line feedforward for constant power capability vs. mains voltage

■ Pulse-by-pulse OCP, shutdown on overload (latched or auto-restart)

■ Transformer saturation detection

■ Switched supply rail for PFC controller

■ Latched or auto-restart OVP

■ Brownout protection

■ -600/+800 mA totem pole gate-driver with active pull-down during UVLO

■ SO16N package

Applications

■ Notebook, TV and LCD monitor adapters

■ High power chargers

■ PDP/LCD TVs

■ Consumer appliances, such as DVD players, VCRs, set-top boxes

■ IT equipment, games, auxiliary power supplies

■ Power supplies in excess of 150 W