STMicroelectronics | L6566BHTR

The L6566BHTR is an extremely versatile current-mode primary controller ICs, specifically designed for high-performance offline flyback converters running off rectified 3-phase input line. It is also suited for single-stage single-switch input-current-shaping converters (singlestage PFC) for applications supposed to comply with EN61000-3-2 or JEITA-MITI regulations.

Features:

• Selectable multimode operation: fixed frequency or quasi-resonant
• On-board 800 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:

• Industrial SMPS
• SMPS running off rectified 3-phase input line