The MAX16814 high-efficiency, high-brightness LED (HB LED) driver provides up to four integrated LED current- sink channels. An integrated current-mode switching DC-DC controller drives a DC-DC converter that provides the necessary voltage to multiple strings of HB LEDs. It accepts a wide 4.75V to 40V input voltage range and withstands direct automotive load- dump events. The wide input range allows powering HB LEDs for small to medium-sized LCD displays in automotive and general lighting applications. An internal current-mode switching DC-DC controller supports the boost, coupled-inductor boost-buck, or SEPIC topologies and operates in an adjustable frequency range between 200kHz and 2MHz.
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