White LED Driver Exploits Unique PWM Phase-Shift Dimming

The SC5010 eight-channel, phase-shifted white LED driver employs PWM phase-shift dimming control, allowing LED drivers to fit into the LCD panel for displays as thin as 4 mm. Features include a 4.5V to 27V input range, output range up to 50V, up to 30 mA of drive current per channel, the ability to handle line transients up to 10 V/µs, efficiency up to 92%, and a programmable switching frequency from 200 kHz to 2.2MHz. In a 28-pin, 4 mm x 4 mm x 0.6 mm MLPQ, pricing for the SC5010 is $1.20 each/3,000. SEMTECH CORP., Camarillo, CA (805) 498-2111.