[On-Bright]
GENERAL DESCRIPTION
OB3309 is a highly integrated and high performance U-type Cold Cathode Fluorescent Lamp (CCFL) controller optimized for LCD display backlight application. Comprehensive protection functions are integrated, thus it provides a cost effective yet high reliability LCD backlight solution.
FEATURES
â High performance push pull topology
â Optimized for U type CCFL solution
â Adjustable dimming polarity
â Adjustable striking frequency & time
â Flexible Dimming mode Control:
â Analog dimming control
â Internal burst dimming control
â External burst (LPWM) dimming control
â Adjustable minimum duty for internal burst dimming
â Adjustable minimum reference voltage for analog dimming
â 0-2V DC voltage direct dimming control without external circuits
â Comprehensive Protection Coverage:
â Output over voltage protection (OVP)
â Output over current protection (OCP)
â Open lamp protection and short lamp protection
â Arcing protection
APPLICATIONS
â LCD Monitor
â LCD TV
â Flat panel display
|