SMD-8 - The FAN7930C is an active power factor correction(PFC) controller for boost PFC applications that operatein critical conduction mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal withthe error amplifier output to generate a MOSFET turn-offsignal. Because the voltage-mode CRM PFC controllerdoes not need rectified AC line voltage information, itsaves the power loss of an input voltage sensing networknecessary for a current-mode CRM PFC controller PFC-Ready Signalƒ Input Voltage Absent Detectionƒ Maximum Switching Frequency Limitationƒ Internal Soft-Start and Startup without Overshootƒ Internal Total Harmonic Distortion (THD) Optimizerƒ Precise Adjustable Output Over-Voltage Protectionƒ Open-Feedback Protection and Disable Functionƒ Zero-Current Detector (ZCD)ƒ 150?s Internal Startup Timerƒ MOSFET Over-Current Protection (OCP)ƒ Under-Voltage Lockout with 3.5V Hysteresisƒ Low Startup and Operating Currentƒ Totem-Pole Output with High State Clampƒ +500/-800mA Peak Gate Drive Currentƒ 8-Pin SOP
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