Melexis MLX81117 Automotive Multi-Channel (RGB)-LED Driver
Melexis MLX81117 Automotive Multi-Channel (RGB)-LED Driver is a fully integrated smart LED driver with high-speed, robust communication (MeLiBU™) between multiple LED drivers to enable applications with high LED counts for highly animated light applications. An intelligent RGB-LED controller provides real-time compensation of any color drift caused by environmental changes and color-mixing accuracy with a delta UV of less than 0.01% to eliminate any distinguishable differences between LEDs. Additional features include brightness control across a wide dimming range, which allows adjustments for natural light levels.
The MLX81117 complies with ISO 26262 functional safety requirements up to safety integrity level B (ASIL B) and the design also delivers low EMI and high levels of immunity, helping designers meet EMC regulations. All necessary components needed for LED driving as well as communication are integrated which allows the development of powerful and cost-optimized animated light systems. For applications requiring RGB-LEDs, the embedded intelligence allows a very high accuracy of the needed color mixing.
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 the 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
- 5.5V to 18V supply voltage range (40V proof)
- ASIL B classification
- QFN32 5mm x 5mm package, 32 pins
- 16 LED drivers
Applications
- Advanced driver communication by light
- Safety warning applications
- Advanced navigation support
- Blindspot warning
- Adaptive roof light
- Highly animated light modules
- Smart light bar
Block Diagram
MeLiBu™ Application Diagram
Additional Resource
Related Products
Melexis MLX81143 Smart Multi-Channel RGB LED Driver
Ideal for automotive use and features high-speed communication through MeLiBu®.
Melexis MLX81116 Smart Multi-Channel RGB-LED Controllers
Designed for high-speed, robust MeLiBu® communication between multiple drivers.
Published: 2021-03-30
| Updated: 2024-11-26