General Description

The FAN4803 is a space-saving controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents.

Features

• Internally synchronized PFC and PWM in one 8-pin IC

• Patented one-pin voltage error amplifier with advanced input current shaping technique

• Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)

• High efficiency trailing-edge current mode PWM

• Low supply currents; start-up: 150µA typ., operating: 2mA typ.

• Synchronized leading and trailing edge modulation

• Reduces ripple current in the storage capacitor between the PFC and PWM sections

• Overvoltage, UVLO, and brownout protection

• PFC VCCOVP with PFC Soft Start