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OZ9966 Datasheet PDF - O2Micro

Part Number OZ9966
Description (OZ99xx) Intelligent Lighting
Manufacturers O2Micro 
Logo O2Micro Logo 

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OZ9966 datasheet, circuit

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OZ9966 equivalent
OZ9933
FEATURES
• Constant operating frequency
• Drives positive/negative-impedance lamps during ignition
• High drive current for external MOSFETs
• User-defined ignition time and shutdown delay time
• Built-in intelligence for lamp ignition and normal operation of CCFLs
• Open-lamp and over-voltage protection
• Soft start function
GENERAL DESCRIPTION
OZ9933 is a high performance, cost-effective Cold Cathode Fluorescent Lamp
(CCFL) controller designed to drive large-size LCD applications using 2. 4, or 6
CCFLs. It supports a full bridge, power conversion topology, while maintaining high
efficiency operation.
This controller converts an unregulated DC voltage into a nearly sinusoidal lamp volt-
age and current waveforms. It supports full-bridge power conversion topology, while
maintaining high efficiency operation.
The OZ9933 offers a high level of integration, while maintaining flexibility and high
efficiency operation that reduces external component heating, resulting in higher
reliability and longer CCFL life. The proprietary design technique provides a simple,
low-cost system solution.
APPLICATIONS
• LCD Monitor
APPLICATION DIAGRAM
OZ9937
FEATURES
• Universal panel interface
• Drives positive/negative-impedance lamps during ignition
• Independent PWM and analog dimming control
• Operating frequency compensation
• User-defined PWM dimming frequency
• User-defined striking and normal operating frequency
• Open-lamp and over-voltage protection
• User-defined ignition and shutdown delay time
• Soft start function
GENERAL DESCRIPTION
The OZ9937 is a high performance, cost-effective Cold Cathode Fluorescent Lamp
(CCFL) controller designed to drive large-size LCD Monitor applications using 2 to 6
CCFLs.
OZ9937 receives a panel ID signal from the system and provides an optimal operat-
ing frequency and power to the LCD panel. The adaptive feature enables a single
inverter design to suit various panel applications.
The controller converts unregulated DC voltage into a nearly sinusoidal lamp voltage
and current waveforms. It provides two drive signals for most power conversion
topologies, while maintaining high efficiency operation.
APPLICATIONS
• LCD Monitor
APPLICATION DIAGRAM
U.S. Patent #’s 6,259,615; 6,396,722; 6,559,606; 6,804,129; 6,809,938; 6,856,519; 6,897,698; 6,900,993; 7,026,860; 7,120,035;
7,151,394; 7,394,209; 7,417,382; 7,515,445; 7,515,446; 7,777,425; and more patents pending.
8
U.S. Patent #’s 6,259,615; 6,396,722; 6,559,606; 6,804,129; 6,809,938; 6,856,519; 6,900,993; 7,120,035; 7,372,213;
7,394,209; 7,417,382; 7,515,445; 7,515,446; 7,777,425; and more patents pending.
9

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Information Total 31 Pages
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