OZ529 Просмотр технического описания (PDF) - O2Micro International

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Компоненты Описание

производитель

OZ529

Intelligent Lighting Family Product Guide

O2Micro International 

OZ9961

FEATURES

• High frequency DC/DC power converter controller

• Drives 6 LED strings in parallel

• Integrated LED current balance control circuit

• Up to 2.35MHz switching frequency

• Analog or external PWM or internal LPWM dimming control

• Over-current and over-voltage protection

• Thermal protection

• Open diode and open/short circuit protection

• Soft start function

GENERAL DESCRIPTION

The OZ9961 is a LED controller that drives up to six (6) strings of LEDs in paral-

lel configuration, with multiple LEDs per string connected in series. It provides

six (6) LED current sense inputs in an “OR” configuration to improve backlight

reliability. This allows the backlight to remain functional in the event that any

string (s) is damaged during normal operation.

OZ9961 supports either analog, external Pulse Width Modulation (PWM) or

internal Low frequency PWM (LPWM) dimming control.

APPLICATIONS

APPLICATION DIAGRAM

• LCD Monitor

• GPS

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

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