ams announces AS7225 lighting smart system sensor |

ams announces AS7225 lighting smart system sensor

ams announces AS7225 lighting smart system sensor

April 3, 2017 -- ams AG, a provider of sensor solutions, announced the AS7225 tunable-white lighting smart system sensor. With the addition of the AS7225, OEM lighting manufacturers can access ams’ closed-loop CCT tuning and daylight compensation, while retaining the existing host microprocessor architecture in their smart lighting design.

The AS7225 is equipped with an embedded tri-stimulus CIE XYZ color sensor to enable color sensing with direct mapping to the International Commission on Illumination (CIE) 1931 color space which is recognized as the standard coordinate definition for human color perception. CCT and daylighting tuning directives are communicated to the host microprocessor via an industry-standard I2C interface, allowing IoT smart lighting manufacturers to avoid calibration and tuning algorithm development.
The AS7225 is an extension of ams’ Cognitive Lighting smart lighting manager family. The AS7225 is available in a 4.5 x 4.7mm LGA package, for integration into luminaires, light-engines and larger replacement lamps, such as LED linear T-LED products. The device provides precise CCT tuning direction between configured warm and cool white LED strings within a luminaire. In addition to the CCT- tuning functions, the AS7225 can additionally be used looking outward in luminaire designs to provide precise daylight management, or can deliver combined CCT-tuning and daylighting directives by the addition of ams’ TSL4531 ambient light sensor.

Key features of the AS7225 include:

  • “Calibrated for life” Tri-stimulus XYZ color sensor for direct mapping into the CIE color space
  • Register-driven command set enabling complete sensor control plus management of precision tuning directives
  • Integrated support for tunable white, daylighting or combined functionality