Part Number : OZ9933
Function : LCDM Full-Bridge Controller
Package : 16 PDIP, SOP, Lead-free
Manufacturers : O2MICRO
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 voltage 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.
1. Constant operating frequency
2. Drives positive/negative-impedance lamps during ignition
3. High drive current for external MOSFETs
4. User-defi ned ignition time and shutdown delay time
5. Built-in intelligence for lamp ignition and normal operation of CCFLs
6. Open-lamp and over-voltage protection
7. Soft start function
Other data sheets within the file : OZ9933GN, 0Z9933, 0Z9933GN