MLX81123KLW-AAA-000-RE

LED Driver IC Overview

The MLX81123KLW-AAA-000-RE is a LIN RGB LED controller IC designed for automotive ambient lighting applications. It integrates a 16-bit MCU, LIN transceiver, and four independent current sources capable of delivering up to 60 mA per channel. The device supports LIN 2.x and SAE J2602 standards, featuring 32 KB flash, 2 KB RAM, and 512 B EEPROM. It operates within a temperature range of -40°C to 125°C and holds AEC-Q100 certification with ASIL B system integration support.

LED Driver IC Feature Summary

• Integrates a 16-bit RISC microcontroller with dedicated LIN protocol handling and physical layer transceiver capabilities.
• Provides four independent high-voltage I/O channels configured as constant current sources for precise RGB and white LED control.
• Supports automatic addressing based on bus parallel connection topology for simplified multi-node system deployment.
• Includes diagnostic functions for LED short circuit, open circuit, and threshold detection to ensure system reliability.

LED Driver IC Applications

• Automotive interior ambient lighting modules
• Door trim illumination systems
• Map lights and dome lights
• Multi-zone cabin color customization units

LED Driver IC Procurement Notes

Verify the specific suffix 'RE' indicates reel packaging when sourcing components. Confirm that the DFN3x3 package variant matches the required PCB footprint. Ensure compatibility with LIN 2.x bus architectures before integration. Check for RoHS compliance documentation if environmental regulations apply to the final assembly. Validate ASIL B requirements against the overall system safety design.

LED Driver IC Selection Notes

Select this component for applications requiring integrated LIN communication and multi-channel LED driving in a compact form factor. Consider the 60 mA output limit per channel when determining LED string configurations. Evaluate the need for ASIL B functional safety features if the application involves critical vehicle systems. Compare pinout and thermal performance against alternative packages like SOIC8 if space constraints differ.

LED Driver IC Part Context

This part belongs to the MLX81123 series, representing the fourth generation of Melexis LIN RGB controllers. It succeeds the widely used MLX81113, offering enhanced processing power and memory resources. The series is specifically engineered for cost-effective yet robust automotive ambient lighting solutions that require precise color mixing and dimming capabilities.

LED Driver IC Replacement Considerations

The MLX81123 serves as a direct successor to the MLX81113. Verify pin-to-pin compatibility and software migration paths when replacing older generations. No other direct substitute part numbers are publicly confirmed for this specific package and configuration.