FL7930 Datasheet (Fairchild Semiconductor) - Single-Stage Flyback and Boundary-Mode PFC

FL7930, Single-Stage Flyback and Boundary-Mode PFC

The FL7930 is an active Power Factor Correction (PFC) controller for low-to high-power lumens applications that operate in Critical Conduction Mode (CRM).

It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal.

Because th

FL7930 Features

* Additional PFC-Ready Function (FL7930C Only) Input-Voltage-Absent-Detection Circuit Maximum Switching Frequency Limitation Internal Soft-Start with Overshoot Prevention Internal Total Harmonic Distortion