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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 buckboost-buck topology.

Features

  • Constant Output Current 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 www. DataSheet4U. com Input Current limit Enable, PWM and Phase Dimming General.

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Datasheet Details

Part number HV9931
Manufacturer Supertex
File Size 496.38 KB
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 Initial Release HV9931 Unity Power Factor LED Lamp Driver Features Constant Output Current 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 www.DataSheet4U.com Input Current limit Enable, PWM and Phase Dimming General Description The HV9931 is a fixed frequency PWM controller IC designed to control an LED lamp driver using a single-stage PFC buckboost-buck topology. It can achieve a unity power factor and a very high step-down ratio that enables driving a single high-brightness LED from the 85-264VAC input without a need for a power transformer.
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