IS32LT3138-QWLA3-TR

Overview

The IS32LT3138-QWLA3-TR is an automotive-qualified, 18-channel linear programmable LED driver IC from Lumissil Microsystems. It provides up to 100mA output current per channel and features a UART communication interface compatible with CAN FD PHY. The device supports PWM dimming and is designed for scalable lamp control applications.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Integrated UART interface compatible with CAN FD PHY for robust communication
• Linear constant current regulation across 18 independent channels

Applications

• Animation rear lighting systems
• Scalable automotive lamp control modules
• Programmable LED signature lighting

Procurement Notes

Verify the specific suffix QWLA3-TR against the official Lumissil datasheet to confirm package type (WQFN-32) and tape & reel quantity. Ensure the design supports the required UART/CAN FD PHY interface levels. Confirm RoHS compliance status via the manufacturer's environmental declaration before finalizing procurement.

Selection Notes

Select this component when an 18-channel solution with integrated communication is required. It is suitable for designs needing direct MCU interfacing via UART without external protocol converters. Consider thermal management requirements due to the linear regulation topology in high-current configurations.

Part Context

This part belongs to the IS32LT31xx family of linear LED drivers optimized for automotive use. It complements other Lumissil solutions like the IS32LT3124 by offering higher channel density and advanced communication capabilities for complex lighting architectures.

Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Evaluate pin-compatible alternatives within the IS32LT series or other automotive-grade 18-channel linear drivers, ensuring UART compatibility and current ratings match.