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.

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