临界导通模式PFC控制器 Critical Conduction Mode PFC Controller
Description
The FAN7529 is an active power factor correction PFC controller for boost PFC applications that operates in crit
ical conduction mode CRM. It uses the voltage mode PWM that compares an internal ramp signal with the
error amplifier output to generate MOSFET turn-off signal.
Features
Low Total Harmonic Distortion THD
Precise Adjustable Output Over-Voltage Protection
Open-Feedback Protection and Disable Function
Zero Current Detector
150µs Internal Start-up Timer
MOSFET Over-Current Protection
Under-Voltage Lockout with 3.5V Hysteresis
Low Start-up 40µA and Operating Current 1.5mA
Totem Pole Output with High State Clamp
+500/-800mA Peak Gate Drive Current
8-Pin DIP or 8-Pin SOP
Applications
Adapter
Ballast
LCD TV, CRT TV
SMPS