4-channel LED driver operated from 8V to 40V which integrates four 80V current-programmable power MOSFETs and a boost controller with adjustable LED current from 5mA to 250mA. Support with PWM/Analog dimming, PI/PO 100Hz to 30kHz, PI/AO 20kHz to 50kHz and protection needed that utilize precise dimming control for LCD panel backlighting.