ams OSRAM (SIX: AMS), aglobal leader in optical solutions, introduces new technology which greatly simplifies theimplementation of dynamic, color– and intensity–changing arrays of hundreds of RGB LEDsin car interior lighting.The new OSIRE® E3731i RGB LED features a digital core that enables low–latency communicationover a standard serial bus interface with any microcontroller. ams OSRAM has also developed anew Open System Protocol (OSP) running on the OSIRE® E3731i. Using OSP, any microcontrollercan transmit instructions to modulate brightness and color individually to each LED. OSP isavailable for use license– and royalty–free by any car, LED, lighting system or microcontrollermanufacturer.By using the OSIRE® E3731i LED and OSP, automotive manufacturers can realize novel dynamiclighting effects in the car interior. Up to 1,000 LEDs can be connected in a daisy chain, controlledvia one microcontroller.Hermann Senninger, Senior Product Manager of ams OSRAM, said: ‘Dynamic lighting promises toadd value to cars by combining changes in color and brightness with pulsing, breathing or movinglight effects, for decorative or functional purposes. The OSIRE® E3731i and OSP enable dynamicinterior lighting to be implemented with a simpler architecture, fewer components, less wiring and atlower system cost. These benefits are attracting customers already, and we expect to see theproduct deployed in production vehicles soon.’Intelligence built in to every LEDThe development of the new intelligent LED draws on the extensive capabilities of ams OSRAM inoptical technology and IC design and fabrication. The OSIRE® E3731i is a high–performance RGBLED co–packaged with an IC that features three LED drivers, a serial bus interface supporting theOSP, a temperature sensor and on–chip memory.Each intelligent RGB LED is characterized at the factory, and its optical performance data arestored in the LED’s on–chip memory. This makes it easier for automotive manufacturers to performend–of–line calibration of interior lighting systems, and to achieve very high optical uniformity andconsistency across arrays of hundreds of OSIRE® E3731i LEDs.The OSIRE® E3731i is now qualified to the latest AEC–Q102 Annex 3 standard.For more technical information, please visit us at at OSIRE® E3731iFor more information: OSIRE® | ams OSRAM (ams–osram.com)
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