Features

• Works across universal AC mains input from 85 VAC to 265 VAC

• Low-side gate driver to drive primary side FET

• A logic-level gate driver to control external high-side floating gate driver IC (ACF)

• Free-running oscillator with PWM generator for start-up

• Line under voltage protection (UVP) and line overvoltage protection (OVP)

• Secondary overvoltage protection via auxiliary winding (SOVP)

• Overcurrent protection (OCP)

• Short-circuit protection (SCP)

• VCC pin short protection (VCCPSP)

• Integrated VCC boost switch to support varied output voltage without the need for an external regulated LDO

• Integrated high-voltage start-up and shunt regulator

• A novel dual-output PET receiver is used to drive both high/low side switch using a single PET