• Compatible with Leading Edge/Trailing Edge Dimmer
• High PF without Any Dimmer
• 350V MOSFET Integrated
• Quasi-Resonant Operation
• Reliable Open LED Protection
• Thermal Fold Back
• Low BOM Cost
• RoHS Compliant and Halogen Free
• Compact Package: SOT23-5

SY22781A is a single-stage Boost PFC driver for LED lighting applications. Good compatibility is achieved with Leading/Trailing edge dimmer and high PF is achieved without any dimmer.

SY22781A drives the converter in Quasi-Resonant mode to achieve high efficiency. Reliable Open LED protections are integrated.

SY22781A integrates high voltage power FET inside to save driver space further 

SY22781A is available in SOT23-5 package.