GB98A データシートの表示（PDF） - O2Micro International

部品番号

コンポーネント説明

メーカー

GB98A

Intelligent Lighting Family Product Guide

O2Micro International 

OZ9908

FEATURES

• Supports 8 strings of 355mA LEDs

• Supports master-slave synchronous operation

• Boost converter switching at 180 degree phase-shift between master and

slave ICs

• Supports analog dimming

• Individual PWM dimming for each LED string

• Supports over-voltage and over-current protections in application

• Supports LED open/short circuit protection

• LED fault status output

GENERAL DESCRIPTION

The OZ9908 is a LED driver controller designed for large-screen LCD backlit

by LEDs. It provides an integrated eight channel LED current regulation control

circuit. Using external balance transistors for each channel, the IC is capable of

driving a current up to 350mA per LED channel.

OZ9908 provides individual Pulse Width Modulation (PWM) dimming for its

respective LED string. The IC is suitable for LCD TV applications where area-

lighting technology using local dimming control is applied.

APPLICATIONS

APPLICATION DIAGRAM

• LCD Monitor

• LCD TV

U.S. Patent #’s 7,498,793; 7,847,783; and more patents pending.

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