AL5873Q Automotive LED Driver Diodes Incorporated AL5873Q Automotive LED Driver is a 3-channel linear driver with PWM (Pulse Width Modulation) dimming and analog dimming control. Each of the three channels can drive up to 250mA with a combined driving current up to 750mA. The current of each channel is set by two reference resistors connected to the REF1 and REF2 pins. The AL5873Q regulates LED current for each channel, accurate down to ±4%, with excellent dimming performance. The AL5873Q enters standby mode to save power if no PWM signal is detected.