MLX81116KLW-AAC-100-SP

LED Driver IC Overview

The MLX81116KLW-AAC-100-SP is a multi-channel RGB LED driver IC from Melexis, designed for automotive dynamic lighting applications. It features 12 output channels with a maximum output current of 60 mA per channel. The device operates on a supply voltage range of 5.5 V to 18 V and supports adjustable output voltages. It integrates Boost and Buck topologies for efficient power management. The component utilizes the MeLiBu communication interface for high-speed data transfer and includes 32 kB Flash memory. It is housed in a QFN-24 package (4x4 mm) and is qualified to AEC-Q100 standards for automotive use.

LED Driver IC Feature Summary

• Integrates MeLiBu communication interface for high-speed, stable data transmission between multiple LED driver chips.
• Supports direct and multiplexed LED driving without requiring additional external components.
• Provides complete diagnostic detection capabilities including short circuit, open circuit, and threshold monitoring.
• Enables precise color mixing with delta UV less than 1% through integrated MCU control.

LED Driver IC Applications

• High-speed dynamic lighting modules
• Smart light strips
• Driver communication functions via lighting
• Advanced navigation support systems
• Blind spot warning systems

LED Driver IC Procurement Notes

Verify the specific suffix AAC-100-SP against the official Melexis datasheet to confirm pinout and firmware configuration. Ensure the QFN-24 package dimensions match the PCB footprint requirements. Check AEC-Q100 qualification status for the specific batch if required by automotive safety standards. Confirm moisture sensitivity level handling procedures during assembly.

LED Driver IC Selection Notes

Select this component for applications requiring synchronized multi-channel RGB control with minimal external hardware. The integrated MeLiBu interface reduces wiring complexity compared to standard SPI or I2C solutions. Consider the 60 mA output current limit when designing LED arrays. The 5.5 V to 18 V input range suits standard automotive electrical systems.

LED Driver IC Part Context

This part belongs to the MLX81116 series of smart LED drivers. It is distinct from the MLX81120 series, which offers different communication protocols and memory configurations. The MLX81116 focuses on high-density RGB control with built-in flash for storing calibration data, enabling complex lighting effects without heavy host MCU processing.

LED Driver IC Replacement Considerations

No public confirmed substitute part numbers are available. The MLX81116KLW-AAC-100-RE is a reel-packaged variant of the same functional device. Cross-referencing with other Melexis LED drivers requires verifying MeLiBu compatibility and channel count differences.