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DOMINANT, one of the Top 5 Automotive LED suppliers in the world, has unveiled world’s first true digital LED which combines RGB LED, LED Driver and advanced communication link integrated into a single package.
The existing RGB ambient lighting design is complicated and costly. It requires high investment on measurement equipment for RGB calibration during SMT process, large number of components and complex design for each RGB ambient lighting module as well as the unsuitability for large scale system consisting of more than 100 LEDs. The new package family called seddLED (Smart Embedded Digital Driver LED) offers a solution to this limitation.
seddLED3.0 consists of numerous outstanding key features including the use of full digital control RGB color and brightness by software command and is pre-calibrated to D65 white point with accuracy within 3 SDCM steps at 1,400mcd. Besides, it is incorporated with fast communication, half-duplex 2Mbit/s differential control bus, fast update rate of 52.5µs per LED (5.25ms for 100 LEDs). At the same time, it promotes simplicity on the RGB module design with no additional micro-controller and communication device and is cost efficient to production logistics and integration (no binning and calibrations are required).
In addition, its built-in temperature sensor enables it to perform real time auto temperature compensation and comes with self-diagnostic function. Additional features included are EMI robust design based on 2 Mbit/s communications with no dedicated clock. With bus initialization on start-up, automatic detection of new or replaced LEDs, seddLED3.0 solution is the first in the market to push for the transformation from conventional automotive electronics towards vehicle digitalization concept. The package also boasts superior corrosion robustness with Au lead frame and is qualified according to the automotive standard of AEC-Q100 and AEC-Q102.
As the age of driverless vehicles approaches, seddLED3.0 provides more designing liberty to simulate different atmospheres in the passenger’s cabin such as romantic sunset, refreshing forest, breezy ocean to name a few. Furthermore, it is not restricted to interior applications only; it can also be extended to exterior applications such as High Definition Information and Animated Lighting Panel for Autonomous Vehicles and Electrical Vehicles. seddLED3.1, with its small package outline of 3.2 x 3.3 x 1.35mm and black package body, can achieve as small as 4mm Fine Pitch High Contrast Ratio matrix LED module requirements. In the nutshell, it is Stylish, Informative and Safety features combined into one which is the future automotive trend.
Future autonomous car development consists of integration of multiple fast speed system such as sensors, cameras, radar and artificial intelligence (AI). The need of fast communication and EMI robust digital LED is essential. For the next 5 years, seddLED technological roadmap is expected to focus on miniaturization, integration and digitalization.
