OZ964_ 데이터 시트보기 (PDF) - O2Micro International

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OZ964_

Intelligent Lighting Family Product Guide

O2Micro International 

OZ9926

FEATURES

• Full-bridge or dual-forward topology

• Integrated high-side N MOSFET driver

• High drive capability

• System synchronization

• Synchronization for multiple ICs

• Supports Limited Current Circuit (LCC)

• Dedicated pins for Analog and LPWM dimming

• Selectable PWM dimming polarity

• Soft start function

• Constant operating frequency

• Built-in intelligence to manage ignition and normal operation of CCFLs

• Open-lamp, over-voltage, over-current, and under-voltage lockout protection

• User-defined striking and shutdown delay timers

GENERAL DESCRIPTION

OZ9926 is a high performance controller designed for large-size Liquid Crystal

Display Television (LCD TV) applications requiring multiple lamps. It achieves a high

efficiency power conversion with minimal switching loss in full-bridge N-Channel

MOSFET topology. The OZ9926 is ideal for single-side drive applications.

The controller provides high drive capability, supports a wide input range, and pro-

vides a constant user-defined operating frequency for the load to operate at a fixed

frequency.

OZ9926 provides an option of selecting the Pulse Width Modulation (PWM) dimming

polarity, and provides two dedicated pins for analog and PWM dimming control.

APPLICATIONS

• LCD TV

APPLICATION DIAGRAM

U.S. Patent #’s 6,259,615; 6,396,722; 6,570,344; 6,781,325; 6,804,129; 6,897,698; 6,936,975; 7,075,245; 7,126,289; 7,151,394;

7,190,123; 7,248,240; and more patents pending.

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