RT8301A Datasheet | Richtek

® 8-CH Constant Current LED Driver for Display Backlight General Description The RT8301A is a 8-CH constant current sink LED drivers with Dynamic Headroom Control (DHC) function. RT8301A can provide well current matching ability, adjustable VSET to choose the suitable dropout voltage across the MOS / BTJ. Beside that, DHC will provide the stable VFB dimming, thus voltage ripple is kept as small even during the dimming. The RT8301A provides four channel constant currents with less than 3% differences in output current value among the 8-CH and ICs respectively. The constant current is adjustable by each channel external resistor (RISET). The LED brightness can also be adjusted via...