MAX16813B 4-Channel LED Driver Analog Devices Inc. MAX16813B 4-Channel LED Driver provides high efficiency and high brightness with four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. The MAX16813B allows a wide 4.75V to 40V input voltage range and withstands direct automotive load-dump events. The wide input range permits powering HB LEDs for small- to medium-sized LCD displays in automotive and general lighting applications.