On-Bright OB3309
OB3309 is a highly integrated and high performance U-type Cold Cathode Fluorescent High performance push pull topology Optimized for U type CCFL solution Lamp (CCFL) controller optimized for LCD display backlight application. It provides a high degree of design flexibility by Adjustable dimming polarity Adjustable striking frequency & time Flexible Dimming mode Control: | Analog dimming control IVT | Internal burst dimming control | External burst (LPWM) dimming control o Adjustable minimum duty for internal burst t dimming offering great programmability for key parameters which include operating frequency, striking l frequency, striking time, dimming polarity, burst dimming frequency, soft-start time, and soft on/off a time for burst dimming. i The highly integrated OB3309 provides complete f protection features covering output over voltage, n over output current protection, lamp fail safe o function, and IC under voltage lockout.