MLX81115KLW-AAD-100-RE

Overview

The MLX81115KLW-AAD-100-RE is a dual-channel LIN RGB controller designed for automotive ambient lighting. It integrates a 16-bit RISC MCU with 32kB Flash and 16kB ROM, alongside a LIN transceiver compliant with LIN 2.x and SAE J2602 standards. The device features six high-voltage I/Os capable of delivering up to 48mA constant current per channel, enabling the drive of two RGB LEDs. It includes a 10-bit ADC, 16-bit PWM outputs, and an internal RC oscillator. Operating within a supply voltage range of 5.5V to 18V, it supports an ambient temperature range of -40°C to 125°C and utilizes a DFN12 4x4 package.

Feature Summary

• Dual-channel architecture supporting up to six independent high-voltage constant current outputs (max 48mA) for driving two RGB LED sets.
• Integrated 16-bit RISC microcontroller featuring 32kB user Flash, 16kB ROM, 2kB RAM, and 380B EEPROM with ECC.
• Full LIN protocol compliance including LIN 2.x and SAE J2602 standards with support for autoconfiguration via bus shunt method.
• Built-in diagnostic capabilities including over/under-voltage detection, temperature monitoring, and LED open/short circuit detection.

Applications

• Automotive interior ambient lighting modules
• Door trim and accent lighting systems
• Multi-zone cabin illumination control

Procurement Notes

Verify the specific suffix 'AAD-100-RE' against the manufacturer's latest documentation to confirm tape-and-reel packaging quantities and any minor revision differences. Ensure the ordering part number matches the required DFN12 4x4 package variant. Cross-reference the datasheet revision date to confirm compatibility with current automotive qualification standards before finalizing procurement.

Selection Notes

Select this component when a single-chip solution is required to drive multiple RGB LEDs via a LIN bus interface. The MLX81115 provides higher pin count flexibility compared to the single-channel MLX8112, allowing for more complex lighting configurations. Consider the integrated MCU resources if custom lighting algorithms or color mixing calculations are needed without external processing.

Part Context

This device belongs to Melexis' second-generation LIN RGB controller family, specifically engineered for automotive environments. It complements the single-channel MLX8112 by offering additional high-voltage outputs in a thermally enhanced DFN12 4x4 package. The series focuses on reducing bill-of-materials complexity by integrating power stages, communication interfaces, and control logic into a single semiconductor die.

Replacement Considerations

The MLX8112KDC-AAD-100-RE serves as a functional alternative for applications requiring only a single RGB LED channel. Both devices share identical MCU architectures and LIN protocol stacks. However, the MLX8112 utilizes an SOIC-8 package and offers four HV outputs instead of six, necessitating PCB layout adjustments if substituting directly.

FAQ

What is the maximum constant current output per IO?

Each high-voltage I/O can provide a configurable constant current of up to 48mA.

Does the MLX81115 support LIN autoconfiguration?

Yes, the integrated LIN transceiver supports autoconfiguration according to the bus shunt method.

What is the operating temperature range?

The device is rated for an ambient temperature range of -40°C to 125°C.