ISELED ... Integrated Smart Embedded LED
- 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
ILaS … ISELED Light and Sensor Network
- 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
Product Overview
Several LED related solutions, focusing on the automotive market, are continuously being developed with ISELED's open technology, and as well by different ISELED alliance members. Other, various systems combining ISELED components with optics are also under development.
The product range includes...
Smart LEDs - Smart RGB LEDs from suppliers such as Dominant, Everlight and Osram allow color, brightness and temperature to be individually addressed and controlled.
Connectivity - The smart LED modules combine RGB LEDs with the ISELED driver & controller IC from Inova in one small package (SiP). In addition, the controller chip is also available as a standalone solution for usage with external LEDs or sensors.
Controllers - ISELED system controllers are available by NXP with different derivatives. Microchip offers a broad portfolio of ISELED supporting MCUs from 8-bit to 32-bit as well.
ADK - The application and development kits with LEDs, from Dominant and Osram, allow for a quick ISELED build and prototype solution, thereby significantly reducing development time.
ISELED 2.0
ISELED® 2.0 is the 2nd generation of the successful ISELED® Smart RGB LED technology for dynamic automotive interior lighting.
ISELED first generation is used by the car industry since 2021. Millions of units are deployed in numerous cars around the world.
The integration of the ISELED® RGB LED driver into RGB LED module by several LED manufactures allows them to supply their customers with highly accurate, fully calibrated and temperature compensated Smart RGB LEDs.
All RGB LED drive functions (3-channel current and PWM setting) are managed by the ISELED RGB LED driver, which slashes development effort and cost for the implementation of homogenous and precise light output. The large ISELED ecosystem with a multitude of functionally compatible products minimizes supply chain risks for Tier1 and OEMs.
ISELED® 2.0 is the latest generation and adds the following features:
- higher drive current
- better PWM resolution
- all-channel temperature compensation,
- independent calibration settings for day- & nighttime application
- allows higher precision dynamic colored lighting effects
- low and mid power LEDs
First ISELED® 2.0 RGB module samples are available by ISELED ecosystem partners.
INLC15AQ - ISELED® 2.0 - Smart RGB LED Driver & Controller
Applications Overview
ISELED significantly reduces system costs as it combines the RGB LEDs, a LED driver/controller IC, and an advanced communication link in a very small SiP (system in package).
The highly integrated RGB LED controller chip also includes functions like oscillator, temperature sensor for automatic temperature compensation, ADC and diagnostic features, so that nearly no external components are necessary.
Inova's INLC10AQ is the first standalone driver available that enables manufacturers to custom design their own choice of external LED strips.
ISELED's smart LED modules are individually calibrated during the manufacturing production process. This leads to high homogeneity over a large number of LEDs, and means that no binning is needed as long as the calibration data is stored in the module. These smart LED modules can be assembled easily as they are available on tape and reel.
The robust bi-directional 2 Mit/s communication link between the MCU and LED module enables easy software control of the LED chain. Each LED's color, brightness and temperature can be individually addressed and controlled.
With the ILaS bus concept (ISELED Light and Sensor network), the original protocol is expanded and not only LED elements, but also other components such as sensors and actuators, can be controlled in large numbers via a simple two-wire connection.
Application 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
- RGB LED Controller
- Calibration-Free Use
- Simple 2-Wire Interface
- Embedded Temperature Compensation
- Daisy Chaining of up to 4.079 LED (individually addressable or via 16 assignable broadcast addresses)
- Complete Ecosystem - Software, Controller, LED
- Full Diagnostic Capability for Functional Lighting
- Designed for Automotive
ILaS® (ISELED® Light and Sensor Network) Bus
