HV9931 UNITY POWER FACTOR LED LAMP DRIVER

Supertex

Description

HV9931 Initial Release HV9931 Unity Power Factor LED Lamp Driver .
The HV9931 is a ﬁxed frequency PWM controller IC designed to control an LED lamp driver using a single-stage PFC buckboost-buck topology.

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Datasheet Specifications

Part number: HV9931
Manufacturer: Supertex
File Size: 496.38 KB
Datasheet: HV9931_Supertex.pdf
Description: 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 Descriptio

Applications

* Ofﬂine LED Lamps and Fixtures Street lamps Trafﬁc Signals Decorative Lighting Typical Application Circuit D1 VIN D4 L1 C1 D2 L2 CIN ~AC ~AC RS1 Q1 D3 RS2 VO + Rref1 RCS1 RCS2 HV9931 RT VIN GATE CS1 GND RT PWMD CS2 VDD C2 Rref2 NR081505 1 Ordering Information Package Options DEVICE 8

HV9931 Distributors

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HV9931 UNITY POWER FACTOR LED LAMP DRIVER Supertex

Supertex HV9931-like datasheet