MLX81115KLW-AAD-100-SP

Overview

The MLX81115KLW-AAD-100-SP is a dual-channel LIN RGB controller from Melexis, 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 driving up to 48mA per channel, enabling control of two RGB LEDs. Key electrical parameters include a supply voltage range of 5.5V to 18V, an internal RC oscillator operating at a default 24MHz, and a low standby current of typ 25µA in sleep mode. It operates within an automotive temperature range of -40°C to 125°C.

Feature Summary

• Integrated 16-bit RISC MCU with 32kB user Flash, 16kB ROM, 2kB RAM, and 512B NVRAM with ECC.
• Dual-channel architecture providing six configurable high-voltage I/Os with constant current sources up to 48mA.
• Built-in LIN protocol controller and transceiver supporting baudrates up to 19.2 kBaud and autoconfiguration via bus shunt.
• Includes a 10-bit ADC with DMA, math co-processor for MUL/DIV operations, and integrated battery monitor.

Applications

• Automotive interior ambient lighting modules
• Dynamic LED light strips requiring color mixing
• Single-node LIN systems for vehicle decoration

Procurement Notes

Verify the specific suffix 'SP' against official Melexis documentation to confirm its exact meaning regarding packaging or quality grade, as standard datasheets may not detail every ordering variant. Ensure compatibility with AEC-Q100 requirements if specified for your application. Confirm moisture sensitivity level and reflow soldering profiles prior to assembly.

Selection Notes

Select this component when a single-chip solution for driving two RGB LEDs via LIN is required. It is suitable for applications needing integrated MCU logic, LIN communication, and high-side current regulation. Consider the DFN12 4x4 package for thermal performance and space constraints compared to the SOIC8 version (MLX81112).

Part Context

This part belongs to the MLX8111x family of second-generation LIN RGB controllers. It serves as the dual-channel counterpart to the single-channel MLX81112, offering additional I/O pins for expanded lighting configurations while maintaining similar core processing and communication capabilities.

Replacement Considerations

For single-channel applications, the MLX81112KDC-AAD-100-RE is a compatible alternative with fewer outputs but a smaller SOIC-8 package. Verify pinout differences and software library compatibility before substituting.

FAQ

What is the maximum current output per IO?

Each high-voltage I/O can provide a constant current of up to 48mA (short term) or 30mA (continuous).

Does the MLX81115 support LIN autoconfiguration?

Yes, it supports autoconfiguration according to the bus shunt method as defined in LIN 2.x and SAE J2602.

What is the typical standby current in sleep mode?

The typical standby current consumption is 25µA, with a maximum of 50µA in sleep mode.