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FAN7930BM

  • Available: 13198

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Description
Description
The FAN7930B is an active power factor correction (PFC) controller for boost PFC 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 the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller.
Features ƒ Additional OVP Detection Pin ƒ Input Voltage Absent Detection Circuit ƒ Maximum Switching Frequency Limitation ƒ Internal Soft-Start and Overshoot-less Control ƒ Internal Total Harmonic Distortion (THD) Optimizer ƒ Precise Adjustable Output Over-Voltage Protection ƒ Open-Feedback Protection and Disable Function ƒ Zero Current Detector ƒ 150μs Internal Startup Timer ƒ MOSFET Over-Current Protection ƒ Under-Voltage Lockout with 3.5V Hysteresis ƒ Low Startup and Operating Current ƒ Totem-Pole Output with High State Clamp ƒ +500/-800mA Peak Gate Drive Current ƒ 8-Pin Small Outline Package (SOP)Applications ƒ Adapter ƒ Ballast ƒ LCD TV, CRT TV ƒ SMPS
Alternatives

Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.

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