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HV9912 データシート (PDF) - Supertex, Inc

HV9912 Datasheet PDF - Supertex, Inc
部品番号 HV9912
ダウンロード  HV9912 ダウンロード

ファイルサイズ   873.27 Kbytes
ページ   12 Pages
メーカー  SUTEX [Supertex, Inc]
ホームページ  http://www.supertex.com
Logo SUTEX - Supertex, Inc
部品情報 Switch-mode LED Driver IC With High Current Accuracy and Hiccup Mode Protection

HV9912 Datasheet (PDF)

Go To PDF Page ダウンロード データシート
HV9912 Datasheet PDF - Supertex, Inc

部品番号 HV9912
ダウンロード  HV9912 Click to download

ファイルサイズ   873.27 Kbytes
ページ   12 Pages
メーカー  SUTEX [Supertex, Inc]
ホームページ  http://www.supertex.com
Logo SUTEX - Supertex, Inc
部品情報 Switch-mode LED Driver IC With High Current Accuracy and Hiccup Mode Protection

HV9912 データシート (HTML) - Supertex, Inc

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HV9912 製品詳細

General Description

The  HV9912  is  a  current  mode  control  LED  driver  IC  designed to control single switch PWM converters (buck, boost, buck-boost or SEPIC) in a constant frequency mode. The controller uses a peak  current-mode  control  scheme  with  programmable  slope compensation and includes an internal transconductance amplifier

to control the output current in closed loop enabling high output current accuracy (in the case of buck and buck-boost converters, the output current can be sensed using a high side current sensor like the HV7800).



Features

Switch mode controller for single switch

drivers

  ♦Buck

  ♦Boost

  ♦Buck-boost and SEPIC

Works with high side current sensors

Closed loop control of output current

High PWM dimming ratio

Internal 90V linear regulator (can be extended using external Zener diodes)

Internal 2% voltage reference

  (0°C < TA< 85°C)

Constant frequency operation

Programmable slope compensation

Linear & PWM dimming

+0.2A/-0.4A gate drive

Hiccup mode protection for both short circuit and open circuit conditions

Synchronization capability

Pin compatible with HV9911



Applications

LED backlight applications

General LED lighting applications

Battery powered LED lamps

 




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