WS3221 Datasheet PDF

WINSEMI WS3221

WS3221 is a high precision primary-side feedback and regulation controller for LED lighting, it operates in constant current control mode and is designed to work in inductor current discontinuous conduction mode and especially suitable for flyback convertor under universal input. The output power of system is recommended to less than 7W. Advanced temperature compensation is applied to eliminate flicker of LED at high temperature WS3221 offers comprehensive protection including Cycle-by-Cycle current limiting (OCP), LED open/short circuit protection, CS resistor short circuit protection, VCC UVLO and Clamp, and over temperature...