OZ9937, описание, схема включения
Микросхема OZ9937, Производитель- O2micro®
FEATURES
• Universal panel interface
• Drives positive/negative-impedance lamps during ignition
• Independent PWM and analog dimming control
• Operating frequency compensation
• User-defi ned PWM dimming frequency
• User-defi ned striking and normal operating frequency
• Open-lamp and over-voltage protection
• User-defi ned 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 effi ciency operation.
Схема включения
Описание микросхем серии OZ99XX в формате PDF, скачать
