BP6211B Datasheet | BPS

Fast Turn-Off Synchronous Rectifier for CCM/DCM Flyback Converter Description The BP6211B is a high-performance, high-integration, self-biased synchronous rectifier (SR) with a 60 V MOSFET integrated for flyback converters. It can replace the secondary diode rectifier for higher efficiency and power density. The BP6211B supports discontinuous conduction mode (DCM), quasi-resonant (QR) and continuous conduction mode (CCM) operations. Robust operation in CCM is enabled with adaptive gate drive and faster turn-off speed with 4 A sink current and ultra-short turn-off delay. The internal ringing detection circuitry prevents the IC from falsely turning on during DCM or QR operations. The internal turn-on blanking function prevents an accidental turn-off due to parasitic ringing. Ultra-short turn-on delay increases SR MOSFET conduction time to improve efficiency. The BP6211B generates its own supply voltage without requiring auxiliary winding for low-side or high-side rectification. This feature makes it suitable for charger applications with a very low output voltage or wide output voltage range. The BP6211B is available in an SOP-8 package. Features - Integrated 60 V / 14 mΩ MOSFET - Adaptive gate drive and faster turn-off speed - Supports DCM, QR and CCM operations - Ringing detection prevents false turn-on in DCM - Supports low-side and high-side rectification - Self-biased and no need for auxiliary winding for high-side rectification - Supports wide output voltage range down to 0 V - 4 A sink gate driver prevent false turn-on by the miller effect - Ultra-short turn-on delay, increase MOSFET conduction time, optimize efficiency - Low quiescent current - patible with energy efficiency regulations Applications - QC, USB-PD and PPS AC-DC Chargers - High Efficiency Adaptors - High Efficiency and Power Density Flyback Converters SOP-8 Package Typical Application Vo 5D 6D 7D S4 S3 VD...