WLED Backlight Driver -- 22” LED Monitor 11S6P WLED Backlight Driver HT7953 Characteristics Integrated power MOSFET Allowable maximum input voltage : 26V Output voltage up to 40V driving 11 Series LEDs Channel phase shift PWM dimming to minimise the input, output ripple characteristics and load transients Switching frequency : 500kHz / 1MHz 6 String constant current outputs with ±1.5% current matching LED current adjustable up to 80mA Soft start function Protection : LED open / short failure detection, OTP, OVP, UVLO, LX current limit Front Side Back side All-in-One Solution by Holtek Original Solution by Dell Application Circuit