Digital LED Solution for Automotive

Next-Generation Viable In-Car Lighting

The next generation of in-car ambient lighting will typically comprise of 10 to 30 LEDs mounted on a flexible light strip. Each 'group' consists of one red, green and blue LED to form a 'pixel', which is then intelligently controlled by the ISELED smart RGB LED driver, effectively replacing the present cumbersome and costly work-around utilizing multiple microcontrollers and a slow LIN bus.

Until now, ISELED smart LED drivers have only been available for purchase integrated in an LED module. The INLC10AQ (previously denoted as INLC100Q16) is the first standalone driver available that enables manufacturers to custom design their own choice of external LED strips.

Several LED-related solutions for the automotive market are continuously being developed under the umbrella of the open ISELED Alliance. There are currently 52 partners in the ISELED Alliance.

The Alliance Members include: Inova Semiconductors, Dominant Opto Technologies, Lucie Labs, NXP, TE Connectivity, Pforzheim University, Valeo, Magna Lighting, Marquardt, Melexis, ams Osram, Microchip, Forvia Hella, Grupo Antolin, Brightek, CoAsia, Allegro MicroSystems, UNO MINDA Systems GmbH, Preh, Prettl Group, Tactotek, Lightworks, feno, novem, UG Systems, Dräxlmaier, Everlight, Forvia Faurecia, Dr. Schneider, Weidplas, Xingyu, Elmos, Cemm Thome, Grammer, AlpsAlpine, Plastic Omnium, Yanfeng, Harvatek, Joysonquin, Keboda, Hongbright, Intron, Polycontact, Analog Devices, Renesas, Simoldes, Blue Whale, Lextar, Liteon, Technica Engineering, USI/Asteelflash and YTMicro.

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Ambient Lighting
Ambient Lighting
Functional Lighting
Functional Lighting
Dynamic Lighting Effects
Dynamic Lighting Effects
Light & Sensor Network
Light & Sensor Network


ISELED ... Integrated Smart Embedded LED

ILaS … ISELED Light and Sensor Network

  • Integrates the ISELED® LED driver with the RGB LEDs into a single Smart RGB LED component, which then allows:
    • Color calibration of the Smart RGB LED at the LED manufacturer instead of the system manufacturer
    • Internal temperature compensation within the module
    • Storage of the individual calibration & compensation values within the Smart RGB LED module
  • Integrates the bidirectional ISELED® communication protocol to allow:
    • 4K address space for individual or multicast addressing of any LED in a daisy-chaining configuration
    • Controlling the homogenous color of any RGB LED by a simple, digital 24-bit value instead of controlling 3-channel current & PWM.
    • Diagnostic read-back of individual internal parameters
  • ISELED® communication bus is optimized for RGB LEDs mounted on light strips on a PCB to meet automotive EMC requirements.
    • Short cable distances can be supported with external filters
  • Power efficient 5V supply only
  • Cable connectivity solution of ISELED RGB LEDs and Sensors
    • 40V robust design that meets automotive ESD and EMC requirements
    • Single 12V power supply with integrated DCDC buck controller for power efficient 5V lighting implementation
    • Low power mode and wake-up signaling
    • Optimized for connectivity of LED-, sensor-, actuator-subsystems via unshielded cable
    • GPIOs for control of external devices.
  • Enhanced bidirectional ILaS® communication protocol:
    • Supports a physically segmented daisy-chain of ISELED® LEDs
    • High fault tolerance through network segmentation and transceiver bypath (Fail-over pass-through)
    • User space in OTP memory to store network topology information

  • Integration of LEDs, LED controller and advanced communication link in one small 3 mm package
    - system cost reduction
  • Calibration of LED and driver during production process of LED module
    - no binning classes, no bar coding – calibration data stored in LED
    - no look up tables in µC anymore
    - system assembly using LED from the tape with guaranteed parameters


  • Bi-directional communication between µC and LED module with lowest latencies
    - EMI robust design based on 2 Mbps communication - no dedicated clock
    - LED temperature can be diagnosed individually by µC
    - efficient use of bandwidth due to individual addressing of each LED


  • Automotive Interior Lighting
  • Automotive Ambient Lighting
  • Roof Lighting
  • RGB LED Controller
  • Calibration-Free Use
  • Simple 2-Wire Interface
  • Embedded Temperature Compensation
  • Daisy Chaining of up to 4.079 LED
  • LEDs are individually addressable, 16 assignable multicast addresses, 1 broadcast address
  • Complete Ecosystem - Software, Controller, LED
  • Full Diagnostic Capability for Functional Lighting
  • Designed for Automotive
VIDEO: ILaS - Light & Sensor Network Demonstration

ILaS - Light & Sensor Network Demonstration Video

Watch video here, or visit our YouTube channel.

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