STMicroelectronics ALED7709 Automotive LED Drivers are AEC-Q100 Grade1 qualified and combine a boost/SEPIC controller and four low-side constant-current sinkers. The STMicroelectronics ALED7709 is designed to drive strings of high-brightness LEDs. The switching converter section provides the supply rail for the LED strings, whose value is constantly optimized for maximum efficiency. The boost/SEPIC controller supports the external synchronization and spread spectrum.