Amers Semiconductor Introduces AS7221 Spectral Tuning IoT Intelligent Lighting Manager

On November 29, 2016, AMS Semiconductors (AMS), the world's leading supplier of high-performance sensors and analog ICs, today announced the industry's first integrated, adjustable white light intelligent lighting manager, the AS7221. With the AS7221, lighting manufacturers will be able to quickly integrate high-precision color temperature tuning (or “Kelvin tuning”) into their own Internet of Things (IoT) smart lighting products. The AS7221 versatile architecture includes an I2C expansion interface with IoT sensor hub platform capabilities for sensing functions such as air quality detection, temperature sensing, space occupancy and presence for Internet of Awareness.

The AS7221 is equipped with an industry-first embedded tri-stimulus CIE XYZ color sensor for accurate color sensing by mapping directly to the CIE 1931 color space. This intelligent lighting manager is a fully integrated lighting control system that is compatible with standard 0-10V inputs and implements the Internet of Things through standard clients such as Smart Bluetooth, ZigBee or WiFi and a complete intelligent lighting command set. Connection and network control, LED spectral tuning control through direct PWM channel output, creating a high-precision solution. This approach significantly reduces development and integration time compared to the more cumbersome discrete component approach.

Figure: AS7221 can achieve economical and accurate color-changing temperature LED lighting connected with the Internet of Things

The director of LED and lighting research at Strategies Unlimited, a well-known photonics market research company in the industry, said: “With LEDs making the 'digital lighting revolution' possible, the next logical step is to integrate the control components directly into the lighting unit. Two key potential factors that have become both economical and practical are sensor integration and core integration at the semiconductor device level. This result will lead us to the right path to achieve the long-term vision of the LED lighting industry, that is, to achieve truly controllable, Interconnected, people-oriented smart lighting that delivers healthy comfort and productivity, efficiency and efficiency."

The AS7221 is the first extension of Cognitive Lighting, the line of intelligent lighting managers recently introduced by Amers Semiconductor. The AS7221 is packaged in a 5x5 mm LGA package for flexible integration into lighting fixtures and large light source replacements. The device provides precise color point tuning for smooth color temperature conversion of warm and cool white LED strings within the luminaire. In addition to color and correlated color temperature tuning, the AS7221 also supports automatic configuration of the Amers Semiconductor TSL4531 ambient light sensor for automatic lighting control.

Tom Griffiths, senior marketing manager at Amers Semiconductor, said: "Next-generation lighting will have three important features: controllability, adaptability and interconnected architecture. Our new line of intelligent lighting managers meets these standards and we can help Lighting manufacturers develop and deploy tunable luminaires that are economical, accurate, and seamlessly integrated into the Internet of Things to address their immediate time-to-market challenges."