L6566B集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)規(guī)格書PDF中文資料

L6566B屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的L6566BAC DC 轉(zhuǎn)換器，離線開關(guān)該系列是元器件級控制產(chǎn)品，用于構(gòu)建將交流市電轉(zhuǎn)換為直流電（通常電壓大幅降低）的設(shè)備。集成和未集成系統(tǒng)主要開關(guān)元件的器件均包括在內(nèi)。由于高輸入輸出電壓比，以及此類系統(tǒng)中通常需要隔離，這些器件通常與外部變壓器配合使用。盡管通常使用定制變壓器來實(shí)現(xiàn)此用途，但也有許多專門用于此用途的庫存產(chǎn)品，請參見“開關(guān)轉(zhuǎn)換器，SMPS 變壓器”標(biāo)題。

Description

The L6566B is an extremely versatile current-mode primary controller ICs, specifically designed for high-performance offline flyback converters. It is also suited for single-stage single-switch input-current-shaping converters (single-stage PFC) for applications supposed to comply with EN61000-3-2 or JEITA-MITI regulations.

Features

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

■ On-board 700 V high-voltage start-up

■ 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 autorestart)

■ Transformer saturation detection

■ Programmable frequency modulation for EMI reduction

■ Latched or autorestart OVP

■ Brownout protection

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

■ SO16N package

Applications

■ Hi-end AC-DC adapter/charger

■ LCD TV/monitor, PDP

■ digital consumer, IT equipment

■ single-stage PFC