IS31SE5117-QFLS3-TR

Overview

The IS31SE5117-QFLS3-TR is a linear LED driver manufactured by Lumissil Microsystems, designed for automotive applications. It integrates seven constant current channels capable of driving high-power LEDs with precise brightness control. The device features an I2C interface for digital configuration, allowing individual channel dimming and fault detection. It operates within a wide supply voltage range and includes thermal shutdown protection to ensure reliability under varying environmental conditions. The component is housed in a compact FL-SOP package suitable for space-constrained designs.

Feature Summary

• Integrates seven independent constant current channels for multi-zone LED control
• Supports digital programming via standard I2C communication interface
• Includes comprehensive fault detection mechanisms for open and short circuit monitoring
• Features built-in thermal shutdown protection for enhanced system safety

Applications

• Automotive interior ambient lighting systems
• Vehicle exterior signature lighting modules
• Dashboard instrument cluster illumination
• High-brightness indicator arrays in automotive electronics

Procurement Notes

Verify the specific suffix QFLS3-TR against official Lumissil documentation to confirm tape-and-reel packaging and automotive grade qualification. Ensure compatibility with existing PCB footprints and I2C bus configurations before procurement. Cross-reference the exact part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing automotive lighting systems requiring multiple independently controlled LED channels with digital dimming capabilities. Consider the operating temperature range and current matching specifications relative to the target LED load. Evaluate the I2C addressability requirements and available GPIO resources on the host microcontroller for proper integration.

Part Context

This model belongs to the IS31SE series of automotive-grade LED drivers from Lumissil Microsystems. The series is characterized by its integration of multiple constant current outputs with digital control interfaces. It targets applications demanding high reliability and precise light management in harsh automotive environments.

Replacement Considerations

Consult official Lumissil Microsystems substitution guides for verified alternative part numbers. Do not assume pin-to-pin compatibility with generic LED drivers without verifying electrical parameters and package dimensions. Review functional equivalents only if they meet the same automotive qualification standards.