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