Product Summary

The LX6523AID is a high performance CCFL controller optimized for small or medium size LCD-TV and other multi-lamp LCD display systems. It enables cost competitive solutions for off-PFC HV-LIPS inverter applications. The controller provides a pair of push-pull PWM drive signals. The output drivers can drive a push-pull, half bridge, or full bridge CCFL inverter configuration with the addition of simple external circuitry. The LX6523AID integrates JIN PureBLACKTM megacontrast digital burst dimming functionality to provide true black mega contrast capabilities for CCFL based displays.

Features

LX6523AID features: (1)400V Off-PFC HV-LIPS Support: Half-bridge or Full-Bridge drive support for inverters; (2)Integrated JIN PureBLACKTM Mega Dimming: Supports BURST PWM dimming for zero percent; (3)duty cycle operation; (4)comprehensive Brightness Control Modes: Analog only adjust lamp current only; Analog BURST Dimming analog voltage to BURST PWM; Digital BURST Dimming Direct PWM BURST input; (5)Multiple Drive Topologies Supported: Push-Pull, Half-bridge, and Full-bridge; 600mA sourcing or sinking gate drivers; (6)Protection, Lamp Strike, Detection, and Operation: OLP, OVP (regulation/protection), OIP and Short Circuit; Programmable STRIKE and Fault time (run mode); Programmable STRIKE frequency.

Diagrams

LX6523AID block diagram