FAN7930MX

Fairchild Semiconductor FAN7930 Critical Conduction Mode PFC Controller

The Fairchild Semiconductor FAN7930 is a critical conduction mode PFC controller for boost PFC applications that operate in critical conduction mode (CRM). The Fairchild Semiconductor FAN7930 uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. The FAN7930 PFC controller provides over-voltage protection, open-feedback protection, over-current protection, input-voltage-absent detection, and under-voltage lockout protection. The Fairchild Semiconductor FAN7930 is designed for use with adapters, ballasts, LCD TV, CRT TV, and SMPS applications.