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FL7733 - Primary-Side-Regulated LED Driver

General Description

This highly integrated PWM controller with advanced Primary-Side Regulation (PSR) technique provides

Key Features

  • High Performance.
  • Cost-Effective Solution without Requiring Input Bulk Capacitor and Secondary Feedback Circuitry.
  • Power Factor Correction.
  • THD.

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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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July 2014 FL7733 Primary-Side-Regulated LED Driver with Power Factor Correction Features High Performance  Cost-Effective Solution without Requiring Input Bulk Capacitor and Secondary Feedback Circuitry  Power Factor Correction  THD <10% Over Universal Line Range  Constant Current Tolerance: < ±1% Over Universal Line Voltage Variation < ±1% by 50% - 100% Load Voltage Variation < ±1% by ±20% Magnetizing Inductance Variation  High-Voltage Startup with VDD Regulation  Adaptive Feedback Loop Control for Startup without Overshoot High Reliability  LED Short / Open Protection  Output Diode Short Protection  Sensing Resistor Short / Open Protection  VDD Over-Voltage Protection (OVP)  VDD Under-Voltage Lockout (UVLO)  Over-Temperature Protection (OTP)  All Protections are Auto Resta