MLX81123KDC-AAA-000-RE

LED Driver IC Overview

The MLX81123KDC-AAA-000-RE is a LIN RGB Gen 4 LED driver IC designed for automotive ambient lighting. It features four independent LED channels with a maximum output current of 60 mA per channel. The device integrates a 16-bit MCU with 32 KB flash and 2 KB RAM, alongside a LIN physical layer transceiver compliant with ISO 17987-4 and SAE J2602 standards. Operating within a supply voltage range of 4.5 V to 18 V, it supports AEC-Q100 qualification and ASIL B safety integration. The component is housed in an SOIC-8EP package.

LED Driver IC Feature Summary

• Integrates a 16-bit RISC microcontroller with dedicated system ROM containing LIN drivers and boot code.
• Includes a fully integrated LIN physical layer transceiver supporting automatic addressing based on bus topology.
• Provides four high-side current sources with independent 16-bit PWM outputs for precise color and brightness control.
• Features built-in diagnostic capabilities for LED short circuit, open circuit, and threshold detection.

LED Driver IC Applications

• Automotive interior ambient lighting modules
• Door trim illumination systems
• Map lights and dome lights
• LIN-based multi-node RGB LED arrays

LED Driver IC Procurement Notes

Verify the specific suffix RE indicates reel packaging configuration when sourcing. Confirm that the KDC designation corresponds to the SOIC-8EP package variant required for your PCB layout. Ensure compatibility with LIN 2.x protocol requirements for your target vehicle network architecture before finalizing procurement.

LED Driver IC Selection Notes

Select this component for applications requiring integrated LIN communication and high-side driving in a compact form factor. It serves as a direct successor to the MLX81113 series, offering enhanced processing capabilities and updated LIN protocol support. Consider the ASIL B capability if functional safety compliance is mandatory for the lighting subsystem design.

LED Driver IC Part Context

This part belongs to the MLX81123 family of smart LED drivers from Melexis. It is specifically engineered for fourth-generation LIN RGB applications in automotive environments. The device combines power stage functionality with embedded control logic to simplify system design for complex interior lighting architectures.

LED Driver IC Replacement Considerations

The MLX81113 series is the previous generation alternative. Verify pinout compatibility and software migration requirements when substituting older components. No other direct cross-references are publicly confirmed for this specific package and configuration.

LED Driver IC FAQ

What is the maximum output current per channel?

Each of the four LED channels can deliver up to 60 mA of current.

Is the device qualified for automotive use?

Yes, the MLX81123 is AEC-Q100 qualified and supports ASIL B safety integration according to ISO 26262.

Does the IC include a LIN transceiver?

Yes, it integrates a LIN physical layer transceiver compliant with ISO 17987-4 and SAE J2602 standards.