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FL7734 - Single-Stage Primary-Side-Regulation PWM Controller

General Description

The FL7734 is a highly integrated PWM controller with advanced Primary-Side-Regulation (PSR) technique to minimize components for low power LED lighting solutions.

Key Features

  • Excellent Dimmer Compatibility by Active Dimming Control.
  • Programmable Dimming Curve and Input Current Management.
  • Constant LED Current Regulation in Large Phase Angle Range.
  • Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry.
  • Accurate Constant-Current (CC) Control, Independent on Line Voltage, Output Voltage, Magnetizing Inductance Variation.
  • Power Factor Correction (PFC).
  • Fast Startup utilizing Bleeding Circuit.
  • Open-LED Protect.

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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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FL7734 — Single-Stage Primary-Side-Regulation PWM Controller for PFC and Phase Cut Dimmable LED Driving November 2014 FL7734 Single-Stage Primary-Side-Regulation PWM Controller for PFC and Phase Cut Dimmable LED Driving Features  Excellent Dimmer Compatibility by Active Dimming Control  Programmable Dimming Curve and Input Current Management  Constant LED Current Regulation in Large Phase Angle Range  Cost-Effective Solution without Input Bulk Capacitor and Feedback Circuitry  Accurate Constant-Current (CC) Control, Independent on Line Voltage, Output Voltage, Magnetizing Inductance Variation  Power Factor Correction (PFC)  Fast Startup utilizing Bleeding Circuit  Open-LED Protection  Short-LED Protection  Sensing Resistor Short Protection  Cycle-by-Cycle Current Limiting  O