OZ9966 데이터 시트보기 (PDF) - Unspecified

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OZ9966

OZ9966 Intelligent Lighting

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OZ9966

FEATURES

• Full-bridge or dual-forward topology

• Integrated high side N-MOSFET driver

• High drive capability and System synchronization

• Dedicated pins for Analog and LPWM dimming

• Selectable PWM dimming polarity

• Constant operating frequency

• Built-in intelligence to manage lamp ignition and normal operation

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

• User-defined striking and shutdown delay timers

• Soft start function

GENERAL DESCRIPTION

The OZ9966 is a high performance controller designed for large-size LCD TV ap-

plications requiring multiple lamps. It achieves a high efficiency power conversion

with minimal switching loss using a full-bridge N-Channel MOSFET topology. The

OZ9966 is ideal for single-side drive or differential drive applications.

OZ9966 allows selection of the Pulse Width Modulation (PWM) dimming polarity, and

provides two dedicated pins for analog and PWM dimming control.

APPLICATIONS

• LCD TV

APPLICATION DIAGRAM

OZ9972/72A

FEATURES

• OZ9972: System synchronization for dimming and operation frequency

• Full-bridge topology

• Integrated high side N-MOSFET driver

• High drive capability and soft start function

• Constant operating frequency

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

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

• User-defined striking and shutdown delay timers

• Soft start function

GENERAL DESCRIPTION

OZ9972/72A are high performance, Pulse Width Modulation (PWM) controllers

designed for large-size LCD TV applications requiring multiple lamps. They achieve

high efficiency power conversion with minimal switching loss in a PWM, full-bridge,

N-Channel MOSFET topology.

OZ9972/72A provide high drive capability, support a wide input range, and provide a

constant, user-defined operating frequency.

APPLICATIONS

• LCD TV

APPLICATION DIAGRAMS

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; 7,345,431; 7,394,209; 7,417,382; 7,425,949; 7,515,445; 7,515,446; 7,550,928; 7,554,273; 7,777,425; and

more patents pending.

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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; 7,345,431; 7,394,209; 7,417,382; 7,425,949; 7,515,445; 7,515,446; 7,550,928;

7,554,273; and more patents pending.

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