Digital signal input, O: Digital signal output, P: GND, PI: Power input C: Power setting capacitor connect pin, FI: Feedback input, PS: Power setting, SO: VCOM signal output, SI: VCOM_O signal input? A036QN01 V0 SIA (Smart Integration Advanced) solution provides internal PWM driving circuit (for VGH, VGL and LED backlight), application circuit as Fig10. Customer can use these internal driving circuit or provides private power supply as Fig 11~13.