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HV9931 - Unity Power Factor LED Lamp Driver

Description

The HV9931 is a fixed-frequency PWM controller IC designed to control an LED lamp driver using a single-stage PFC buck-boost-buck topology.

Features

  • Constant Output Current LED Driver.
  • Large Step-Down Ratio.
  • Unity Power Factor.
  • Low-Input Current Harmonic Distortion.
  • Fixed-Frequency or Fixed Off-Time Operation.
  • Internal 450V Linear Regulator.
  • Input and Output Current Sensing.
  • Input Current Limit.
  • Enable Pulse-Width Modulation (PWM) Dimming and Phase Dimming.

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Datasheet Details

Part number HV9931
Manufacturer Microchip
File Size 1.79 MB
Description Unity Power Factor LED Lamp Driver
Datasheet download datasheet HV9931 Datasheet

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Full PDF Text Transcription

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HV9931 Unity Power Factor LED Lamp Driver Features • Constant Output Current LED Driver • Large Step-Down Ratio • Unity Power Factor • Low-Input Current Harmonic Distortion • Fixed-Frequency or Fixed Off-Time Operation • Internal 450V Linear Regulator • Input and Output Current Sensing • Input Current Limit • Enable Pulse-Width Modulation (PWM) Dimming and Phase Dimming Applications • Offline LED Lamps and Fixtures • Street Lamps • Traffic Signals • Decorative Lighting General Description The HV9931 is a fixed-frequency PWM controller IC designed to control an LED lamp driver using a single-stage PFC buck-boost-buck topology.
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