• Integrated 650V MOSFET
• Quasi-Resonant (QR) Mode to Achieve Low Switching Losses
• No Opto-coupler or Auxiliary Winding for Feedback in the Proprietary Floating Switch Configuration
• Reliable Short LED and Open LED Protection
• Thermal Foldback Function
• Power Factor>0.9 with Internal Loop Compensation
• Maximum Output Power : 10W
• RoHS Compliant and Halogen Free
• Compact Package: SO8

SY22774 is a single stage Flyback PFC regulator targeting at LED lighting applications.

SY22774 integrates a 650V MOSFET to decrease physical volume. It adopts the proprietary control architecture to achieve an accurate regulation of LED current, unity power factor.Quasi-Resonant valley turn-on for high efficiency operation. Proprietary self-bias technique saves the bias supply and reduces the start up time.

SY22774 integrates open/short LED protection and eliminates the need for opto-coupler or auxiliary winding (in floating switch application), thus minimizing the component count and board size.