ASL2417SHNY

Overview

The ASL2417SHNY is a two-channel buck mode LED driver IC designed for automotive applications. It delivers constant average DC current to LEDs independent of input voltage variations. The device features an SPI interface for configuration and includes a Limp-home mode for fault tolerance. It operates with an input voltage range of 10 V to 80 V and provides output voltages between 2.5 V and 70 V. Packaged in a 32-HVQFN (5x5) exposed pad, it supports PWM dimming and integrates internal switches.

Feature Summary

• Two-channel buck mode architecture for independent LED control
• SPI interface for digital configuration and monitoring
• Limp-home mode ensures continued operation during specific faults
• Automotive grade qualification for reliability

Applications

• Automotive exterior lighting systems
• LED headlamp modules
• Adaptive driving beam applications
• High-reliability automotive illumination

Procurement Notes

Verify the exact suffix 'Y' corresponds to RoHS3 compliance and specific tape-and-reel packaging as indicated by distributor listings. Confirm the package marking matches the 32-VFQFN Exposed Pad specification. Ensure the component meets the required moisture sensitivity level (MSL 3) handling procedures upon receipt. Cross-reference the manufacturer part number with official NXP documentation to confirm pinout and electrical characteristics before integration.

Selection Notes

Select this component when designing automotive LED drivers requiring dual-channel buck topology with digital SPI control. It is suitable for applications demanding high input voltage tolerance up to 80 V and robust fault management via Limp-home mode. Consider the 32-HVQFN package for compact board layouts. Verify that the required output current and voltage ranges align with the specified 2.5 V to 70 V output window and 1.5 A capability.

Part Context

This part belongs to NXP's automotive LED driver portfolio, specifically targeting advanced lighting solutions. It complements other single or multi-channel drivers by offering integrated buck conversion and digital interface capabilities. The series emphasizes functional safety and reliability for critical vehicle lighting systems, adhering to strict automotive environmental standards.

Replacement Considerations

Check for direct substitutes within the ASL24xx family or compatible NXP automotive LED drivers with matching pinouts and SPI interfaces. Verify that alternative parts support the same 10-80 V input range and 32-VFQFN package. Ensure any replacement maintains equivalent Limp-home functionality and automotive grade certification.