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HV9931 - Unity Power Factor LED Lamp Driver

Datasheet Summary

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 preview – HV9931

Datasheet Details

Part number HV9931
Manufacturer Microchip
File Size 1.79 MB
Description Unity Power Factor LED Lamp Driver
Datasheet download datasheet HV9931 Datasheet
Additional preview pages of the 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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