OB3308 is a high integrated and high performance Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD monitor backlight application. It integrates high precision (2%) 4 channels of current and voltage feedback control, and thus provides a low-cost and high reliability LCD backlight solution with minimum system BOM count. OB3308 controls full bridge topology and supports various dimming functions and comprehensive protections.


Features:

◆ Minimal required external components
◆ Full bridge topology
◆ High Precision Reference and Frequency Control
◆ External programmability of the key parameters
◆ Flexible Dimming mode Control：
◇ Analog dimming control
◇ Internal burst dimming control
◇ External burst (LPWM) dimming control
◇ 0-3V DC voltage direct dimming control without external circuits
◆ Comprehensive Protection Coverage：
◇ Output over voltage protection (OVP)
◇ Output over current protection (OCP)
◇ Open lamp protection and short lamp protection
◇ Arcing protection
◆ Available in SOP20 and SSOP20 packages,RoHS compliant



Applications:

LCD CCFL backlight system in
◆ LCD Monitor/TV