OZ533 Просмотр технического описания (PDF) - O2Micro International

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Компоненты Описание

производитель

OZ533

Intelligent Lighting Family Product Guide

O2Micro International 

OZ9906

FEATURES

• Switch-mode DC/DC controller to balance LED current

• High current output drive for 6 LED strings

• Spread spectrum feature on operating frequency

• High efficiency LED current regulation

• Supports analog and external PWM dimming

• User-defined phase-shift PWM dimming function with 2 to 6 phase options

• PWM dimming frequency synchronization

• MOSFET over-current protection

• LED short circuit protection

• User-defined short circuit protection threshold

• LED fault status output

GENERAL DESCRIPTION

The OZ9906 is a high efficiency switch-mode DC/DC controller that drives up to

6 LED strings connected in parallel. It is targeted for large-size monitor and TV

applications.

OZ9906 provides six (6) LED current sense inputs. The IC provides individual

LED current regulation for each LED string. This allows the backlight to remain

functional in the event that any string (s) is damaged during normal operation.

APPLICATIONS

APPLICATION DIAGRAM

• LCD Monitor

• LCD TV

U.S. Patent #’s 7,847,783; 7,919,936; 8,248,439; and more patents pending.

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