GERNERAL DESCRIPTION

The WS21351 is a high-voltage monolithic integrated circuit which is designed for driving Compact Fluorescent Lamps (CFL) in a half-bridge configuration.WS21351 features a soft start function, an adjustable oscillator and an internal drive function with a high-voltage level shifter for driving the half bridge.

FEATURES

■ Integrated 600V half-bridge gate driver

■ Lower power level-shifting circuit

■ Adjustable oscillator frequency and preheat time

■ Maximum voltage of 600 V

■ Internal clamping zener diode

■ Soft start functionality