MLX81109KLW-CAE-100-RE

Application Specific Microcontrollers Overview

The MLX81109KLW-CAE-100-RE is a fully integrated LIN slave controller designed for automotive ambient lighting applications. It combines a physical layer LIN transceiver, a LIN protocol controller compliant with LIN 2.x and SAE J2602 standards, and a 16-bit MULAN MCU within a QFN20 5x5 package. The device features 32kByte Flash, 1kByte RAM, and 380Byte NVRAM with ECC. Key electrical parameters include a battery supply voltage range of 5.5V to 18V and an operating temperature range of -40°C to +125°C. It supports baud rates up to 19.2 kBaud and includes four high-voltage I/Os capable of sourcing up to 48mA.

Application Specific Microcontrollers Feature Summary

• Integrated 16-bit MULAN MCU with 32kByte Flash, 1kByte RAM, and 380Byte NVRAM featuring ECC.
• LIN Protocol Controller and Transceiver compliant with LIN 2.x and SAE J2602 standards.
• Four high-voltage I/Os with configurable current sources (up to 48mA) suitable for RGBW LED driving.
• Low standby current consumption of typ 25µA in sleep mode with integrated battery monitor.

Application Specific Microcontrollers Applications

• Automotive ambient light systems
• RGB LED driver modules connected to LIN Bus
• MCU modules interfacing with LIN infrastructure

Application Specific Microcontrollers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, temperature grade, and reel specifications. Ensure compatibility with the target automotive environment requirements before finalizing procurement decisions.

Application Specific Microcontrollers Selection Notes

Select this component for applications requiring a low-pin-count, fully integrated LIN slave solution for LED control. The QFN20 5x5 package offers thermal efficiency and space savings. Consider the 48mA per IO limit when designing circuits for multiple LEDs or higher brightness requirements.

Application Specific Microcontrollers Part Context

The MLX81109 belongs to Melexis' Mini LIN/LIN RGB Slave Controller family. It is part of a series that includes variants like the MLX81106, MLX81107, and MLX81108, which share similar core functionalities but may differ in memory size or package configuration.

Application Specific Microcontrollers Replacement Considerations

MLX81107 is a pin-compatible alternative within the same family, offering identical functionality but with different memory configurations or package options depending on the specific suffix.

Application Specific Microcontrollers FAQ

What is the maximum current output per high-voltage I/O?

Each of the four high-voltage I/Os can provide a configurable current source of up to 48mA.

Does the MLX81109 support autoconfiguration?

Yes, it supports autoconfiguration according to the bus shunt method.

What is the typical standby current in sleep mode?

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