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FL7930 - Single-Stage Flyback and Boundary-Mode PFC

General Description

The FL7930 is an active Power Factor Correction (PFC) controller for low-to high-power lumens 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.

Key Features

  • Additional PFC-Ready Function (FL7930C Only) Input-Voltage-Absent-Detection Circuit Maximum Switching Frequency Limitation Internal Soft-Start with Overshoot Prevention Internal Total Harmonic Distortion (THD) Optimizer Precise Adjustable Output Over-Voltage Protection Additional OVP Detection Pin (FL7930B Only) Open-Feedback Protection and Disable Function Zero-Current Detector 150µs Internal Startup.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
FL7930B Single-Stage Flyback and Boundary-Mode PFC Controller
FL7930BMX Single-Stage Flyback and Boundary-Mode PFC Controller
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FL7930CMX Single-Stage Flyback and Boundary-Mode PFC Controller
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FL7930 — Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting March 2011 FL7930 Single-Stage Flyback and Boundary-Mode PFC Controller for Lighting Features                 Additional PFC-Ready Function (FL7930C Only) Input-Voltage-Absent-Detection Circuit Maximum Switching Frequency Limitation Internal Soft-Start with Overshoot Prevention Internal Total Harmonic Distortion (THD) Optimizer Precise Adjustable Output Over-Voltage Protection Additional OVP Detection Pin (FL7930B Only) Open-Feedback Protection and Disable Function Zero-Current Detector 150µs Internal Startup Timer MOSFET Over-Current Protection (OCP) Under-Voltage Lockout with 3.