FAN7930 Critical Conduction Mode PFC Controller

SKU: 20193739

In stock


DIP-8 - The FAN7930C is an active pow er factor correction
(PFC) controller for boost PFC applications that operate
in critical conduction mode (CRM). It uses a voltagemode PWM that compares an internal ramp signal w ith
the error amplifier output to generate a MOSFET turn-off
signal. Because the voltage-mode CRM PFC controller
does not need rectified A C line voltage information, it
saves the pow er loss of an input voltage-sensing netw ork
necessary for a current-mode CRM PFC controller PFC-Ready Signal
? VIN-Absent Detection
? Maximum Sw itching Frequency Limitation
? Internal Soft-Start and Startup w ithout Overshoot
? Internal Total Harmonic Distortion (THD) Optimizer
? Precise Adjustable Output Over-Voltage Protection
? Open-Feedback Protection and Disable Function
? Zero-Current Detector (ZCD)
? 150 ?s Internal Startup Timer
? MOSFET Over-Current Protection (OCP)
? Under-Voltage Lockout w ith 3.5 V Hysteresis
? Low Startup and Operating Current
? Totem-Pole Output w ith High State Clamp
? +500/-800 mA Peak Gate Drive Current
? 8-Pin, Small Outline Package (SOP)

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