OB3316 is a high performance Cold Cathode Fluorescent Lamp (CCFL) backlight controller IC
dedicated for use in push pull configuration. The controller is designed to drive single or multiple
CCFLs in Liquid Crystal Display (LCD)
applications. OB3316 converts unregulated DC input voltage to the pseudo sinusoidal voltage and current waveforms in required frequency, to ignite and operate CCFL lamps.
OB3316 provides a high degree of design flexibility
by offering great programmability for key
parameters which includes operating frequency,
striking frequency, striking time, burst frequency
for dimming and soft-start time.
OB3316 offers variable dimming controls. Both
internal burst and external low frequency PWM
(LPWM) dimming methods are available for a wide
range of dimming control (10% to 100%). Further
more, analog dimming is provided through
external DC input control to achieve 40% to 100% dimming range.