Due to their power efficiency and robustness white LEDs have become popular for use in infrastructure lighting. To satisfy the high power requirements of these lighting applications, the Microchip MSL308X LED driver family is designed to make use of an external power supply. The driver controls the DC-DC converters that power the LED strings, using patented Microchip Adaptive SourcePower™ technology. These efficiency optimizers minimize power use while maintaining LED current accuracy, and allow up to eight interconnected devices to automatically negotiate the optimum power supply voltage. Often, an Microchip MCU will act as the sensor hub for the LED driver. To allow for easy integration with the MCU, the MSL308X family features a 1MHz I²C serial interface. The compact, high-power Microchip MSL3082 LED string driver uses external MOSFETs to provide up to at least 500mA per string, with current accuracy and matching better than 1%. The MSL3082 drives eight parallel strings of LEDs, and offers fault detection and management of open and short circuit LEDs.