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OZ9902 PDF 데이터시트 ( Data , Function )

부품번호 OZ9902 기능
기능 (OZ99xx) Intelligent Lighting
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OZ9902 데이터시트, 핀배열, 회로




OZ9902 pdf, 반도체, 판매, 대치품
Intelligent Lighting
Mission Statement
Be the leading supplier of highly efficient Intelligent Lighting solutions for power
management of electronic products in the Computer, Consumer, Industrial,
Automotive, and Communications markets worldwide.
Product
O2Micro® offers a family of Intelligent Lighting backlight Cold Cathode Fluorescent
Lamp (CCFL), External Electrode Fluorescent Lamp (EEFL), Flat Fluorescent Lamp
(FFL), and LED controllers ideal for various sizes of Liquid Crystal Display (LCD)
and Power Management Unit (PMU) applications – e.g., Monitors, TVs, Notebooks/
Netbooks, PDVDs, Car TVs, GPS, Digital Photo Frames, PNDs (Personal Navigation
Devices). Solutions are also available for General Lighting and Automotive
applications.
CONSUMER Applications
DIGITAL PHOTO FRAME
OZ9919
FEATURES
• Supports half-bridge or push-pull topology
• 0% to 100% PWM dimming range
• 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
OZ9919 is a high performance, cost-effective Cold Cathode Fluorescent Lamp
(CCFL) controller designed to drive large-size LCD monitors using 2 or 4 CCFLs.
This controller converts an unregulated DC voltage into a nearly sinusoidal lamp volt-
age and current waveforms. It supports either half-bridge or push-pull power conver-
sion topology, while maintaining high efficiency operation.
The OZ9919 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
LED MONITOR & TV
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.
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OZ9902 전자부품, 판매, 대치품
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.
12
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.
13

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