Part number : OZ9938GN
Functions : LCDM Inverter Controller
Package information : 16Pin Pin
Manufacturer : O2Micro International
Pinout :
Description
The OZ9938GN is a high performance, cost-effective CCFL (Cold Cathode Fluorescent Lamp) controller designed for driving large-size Liquid Crystal Display(LCD) applications requiring 2 to 6 CCFLs.
The controller converts unregulated DC voltages into a nearly sinusoidal lamp voltage and current waveforms.
The control logic provides a regulated ignition voltage and appropriate protection features for over-voltage or over-current conditions.
The OZ9938 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.
The control logic provides a regulated ignition voltage and appropriate protection features for over-voltage or over-current conditions. The OZ9938 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.
Block Diagram
Features
1. Positive PWM dimming polarity
2. Constant operating frequency
3. Drives positive/negative-impedance lamps during ignition
4. High drive current for external MOSFETs
5. User-defined ignition time and shutdown delay time
6. Multiple mode dimming control
7. Built-in intelligence for ignition and normal operation of CCFLs
8. Built-in open-lamp protection and overvoltage protection for backlight system
Optimized soft-start function
OZ9938GN Datasheet PDF
Other data sheets within the file : OZ9938, OZ9938D, OZ9938DN, OZ9938G, OZ9938GN
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