General Description

WS3110 is a power factor correction， primary-side-control LED lighting driver with advanced features to provide high efficiency control for lighting application. WS3110 applies source driver technology，its internal fast start-up circuit greatly shorten the start-up time while keeping extremely low standby power consumption. With internal line-compensation, the WS3110 provides accurate constant current (CC ± 5%) regulation at universal AC input.

Features

■Fast start-uptime

■Low operation current (0.6mA)

■PSR control with Single stage PFC topology

■CC±5%

■Programmable output current and output voltage

■Internal Line and Load compensation

■Internal soft-start

■Built in Leading edge blanking(LEB)

■Cycle-by-cycle Over-Current Protection

■VCC over-voltage protection(VCC-OVP)

■VCC under voltage lockout(UVLO）

■Over temperature protection(OTP)

■Transformer saturation protection

■Inter power-mos saturation protection

■Output LED open/short protection

■CS pin open/short protection

Applications

■LED lighting

■Down light

■Tube lamp

■PAR lamp

■Bulb