The MLX81117 is a multi-channel RGB-LED controller that enables high-speed light animations, extending the MeLiBu product family with a higher number of integrated LED drivers

Read more

Top features

  • MCU for extended LED control algorithm, color mixing and full diagnosis

  • Red/Green and Blue LED temperature compensation without additional external components

  • Color mixing accuracy of < 1% delta UV

  • 16-bit color/intensity control

  • Storage of LED calibration data directly within LED driver

  • Low side programmable calibrated current sources for LED control

  • Direct LED drive without additional external components

  • LEDs fully diagnosable (Short circuit, broken line, threshold monitor)

  • MeLiBu® communication interface

  • Real-time update of > 250 RGB LEDs without delay

  • 5.5 - 18 V supply voltage (40 V proof)

  • ASIL B classification

  • 16 LED drivers

  • Memory

    • 32 kB Flash

    • 2 kB RAM

    • 512 B EEPROM

    • System ROM

  • QFN32 5x5 package, 32 pins

Discover all features
Smart multi-channel RGB-LED controller with 16 drivers - MLX81117

Product description

The MLX81117 is a fully integrated smart automotive LED driver with high-speed robust communication (MeLiBu®) between multiple LED drivers to enable applications with high RGB-LED counts for highly dynamic light animations within cars.

All necessary components needed for LED driving as well as communication are integrated and allow to develop powerful and cost-optimized animated light systems. The embedded intelligence allows a very high accuracy of the RGB color mixing as well as the support of ASIL B grade applications thanks to the MeLiBu® communication system. The MLX81117 extends the MeLiBu product family with a higher number of integrated LED drivers.

Key applications

  • Adaptive roof light
  • Highly animated light modules
  • Smart light bar
  • Advanced driver communication by light
    • Safety warning applications
    • Advanced navigation support
    • Blindspot warning

Evaluation kit and Software are available on request. Please contact Melexis for additional information.

MLX81117 block diagram

Features and benefits

  • MCU for extended LED control algorithm, color mixing and full diagnosis

  • Red/Green and Blue LED temperature compensation without additional external components

  • Color mixing accuracy of < 1% delta UV

  • 16-bit color/intensity control

  • Storage of LED calibration data directly within LED driver

  • Low side programmable calibrated current sources for LED control

  • Direct LED drive without additional external components

  • LEDs fully diagnosable (Short circuit, broken line, threshold monitor)

  • MeLiBu® communication interface

  • Real-time update of > 250 RGB LEDs without delay

  • 5.5 - 18 V supply voltage (40 V proof)

  • ASIL B classification

  • 16 LED drivers

  • Memory

    • 32 kB Flash

    • 2 kB RAM

    • 512 B EEPROM

    • System ROM

  • QFN32 5x5 package, 32 pins

Documents and tools

Videos

MeLiBu RGB/OLED Driver for Automotive

Product

Discover MeLiBu - Melexis Light Bus - a high-speed low-BOM automotive robust communication system that enables applications with high RGB-LED counts for highly animated light animations within cars.

Practical applications

Application automotive interior lighting thumbnail

Interior lighting

The influence light can have on us is no longer a secret. It is therefore no surprise to see car interiors being upgraded for our comfort and safety, especially when you can reduce the design complexity thanks to a scalable & flexible lighting architecture solution.

Read more