L6566BTR Datasheet PDF - ST Microelectronics

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