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1. Description
OB3350CP 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. Operating in push pull configuration, OB3309 converts DC input voltage to the pure sinusoidal voltage and current waveforms, to ignite and operate CCFL lamps. It provides a high degree of design flexibility by offering great programmability for key parameters which include operating frequency, striking frequency, striking time, dimming polarity, burst dimming frequency, soft-start time, and soft on/off time for burst dimming.
2. Features
>High performance push pull topology
>Optimized for U type CCFL solution
>Adjustable dimming polarity
>Adjustable striking frequency & time
>Flexible Dimming mode Control:
>Analog dimming control
>Internal burst dimming control
>External burst (LPWM) dimming control
>Adjustable minimum duty for internal burst dimming
>Adjustable minimum reference voltage for analog dimming
>0-2V DC voltage direct dimming control without external circuits
https://www.utsource.net/ic-datasheet/OB3350CP-2178869.html
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