The ASL2417SHN from NXP Semiconductors is an Automotive Qualified Dual-Channel Buck Mode LED Driver IC that is ideal for automotive LED lighting, daytime running lights, position or park lights, low beam, high beam, turn indicators, fog lights, cornering light and advanced front lighting applications. It requires an input voltage of 10 - 80 V. This LED driver IC employs a hysteretic buck DC-DC topology, accommodating input voltages from 10 V to 80 V and providing versatility in output voltage for up to 20 LEDs per channel. It provides an output current of 1.5 A per channel, with the option to connect channels to achieve a higher current, facilitating efficient LED driving. This AEC-Q100-qualified LED driver IC drives an external high-side N-channel MOSFET from an internally regulated adjustable supply, enabling flexible system design for two LED strings with the same architecture. It features an SPI interface for comprehensive control and diagnostic communication with an external microcontroller, along with a customer-programmable Limp-Home mode for configurable operation in case of communication failure.

This LED driver IC offers an adjustable hysteresis for optimizing external components, minimizing LED current ripple, and includes a measurement capability to identify LED open or short circuit conditions. It provides added diagnostic functionalities like current reached status, input under-voltage lockout, and thermal shutdown, contributing to enhanced overall reliability. This LED driver IC is available in a surface-mount package that measures 5.1 x 5.1 x 1.0 mm.