OZ9937 PDF Datasheet – Universal LCD Panel Controller

Part Number: OZ9937

Function: Universal LCD Panel Controller

Package: SOP 16 Pin Type

Manufacturer: O2Micro


OZ9937 datasheet


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. 0Z9937 receives a panel ID signal from the system and provides an optimal operating 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.


• 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



OZ9937 Datasheet