Smart multi-channel RGB-LED controller with 21 drivers
MLX81143
The MLX81143 is a multi-channel RGB-LED controller that enables high-speed light animations. It continues to extend the MeLiBu product family with a higher number of integrated LED drivers.
Top features
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MCU for extended LED control algorithm, color mixing and full diagnosis
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Red/Green and Blue LED temperature compensation without additional external components
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Color mixing accuracy of < 1% delta UV
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16-bit color/intensity control
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Storage of LED calibration data directly within LED driver
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Low side programmable calibrated current sources for LED control
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Direct LED drive without additional external components
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LEDs fully diagnosable (Short circuit, broken line, threshold monitor)
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Real-time update of > 800 RGB LEDs without delay
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MeLiBu® compatible communication interface
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5.5 - 28 V supply voltage (40 V proof)
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Advance power management for LEDs
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ASIL B classification
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21 LED drivers
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Memory
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32 KB Flash
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4 KB RAM
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512 B EEPROM
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System ROM
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QFN32 5x5 package, 32 pins
Smart multi-channel RGB-LED controller with 21 drivers - MLX81143
Product description
The MLX81143 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 MLX81143 extends the MeLiBu product family with a higher number of integrated LED drivers.
Key applications
- Highly animated light modules
- Interior driver communication by light
- Voice command signal confirmation
- Safety warning applications
- Advanced navigation support
- Blindspot warning
- Animated Rear Light and DRL
Evaluation kit and Software are available on request. Please contact Melexis for additional information.
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)
-
Real-time update of > 800 RGB LEDs without delay
-
MeLiBu® compatible communication interface
-
5.5 - 28 V supply voltage (40 V proof)
-
Advance power management for LEDs
-
ASIL B classification
-
21 LED drivers
-
Memory
-
32 KB Flash
-
4 KB RAM
-
512 B EEPROM
-
System ROM
-
-
QFN32 5x5 package, 32 pins
Documents and tools
Application flyer(s)
Datasheet(s)
Product flyer(s)
Selection guide(s)
Related tech talks
Videos
MeLiBu RGB/LED Driver for Automotive
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.
Dynamic Lighting with MeLiBu®
Experience the power of MeLiBu technology in action. Watch as it can drive up to 4,000 RGB LEDs to create complex, highly fluid animations. Discover the scalability and simplicity of next-generation lighting control.
