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AS7220

ams
Part Number AS7220
Manufacturer ams
Description Calibrated CCT and Lumen Maintenance Smart Lighting Manager
Published Apr 25, 2022
Detailed Description General Description AS7220 Calibrated CCT and Lumen Maintenance Smart Lighting Manager The AS7220 Smart Lighting Manage...
Datasheet PDF File AS7220 PDF File

AS7220
AS7220

Overview
General Description AS7220 Calibrated CCT and Lumen Maintenance Smart Lighting Manager The AS7220 Smart Lighting Manager is part of the ams Cognitive Lighting™ family of products that enable lights to autonomously adapt to human lighting and energy conservation needs.
The device is equipped with an advanced Cognitive Lighting Engine (CLE) to optimize CCT and lumen maintenance and color maintenance via a combination of PWM and/or 0-10V controls with dimming ballasts.
Daylight harvesting can also be performed by adding an I²C connected ams ambient light sensor.
AS7220 XYZ chromatic white/color sensing provides mapping to x, y (z) of the CIE 1931 2-dimensional color gamut coordinates and scales the coordinates to the CIE 1976 u’v’ coordinate system.
The AS7220 integrates standard observer filters into standard silicon via nano-optic deposited interference filters which deliver high-stability over time and temperature.
The LGA package includes a built-in aperture to control light entering the sensor array.
Integrated intelligence enables lifetime CCT calibration to within 2-4 Macadam steps.
The AS7220 connects to standard 0-10V dimmer inputs and drives 0-10V dimming ballasts/drivers to enable a highly cost-effective white tunable current-steering luminaire design with a single-channel constant current ballast.
Direct PWM inputs can also interface to standard LED drivers or multi-channel ballasts for constant voltage LED lighting architectures.
Ordering Information and Content Guide appear at end of datasheet.
ams Datasheet [v1-00] 2017-Feb-16 Page 1 Document Feedback AS7220 − General Description Figure 1: Added Value of Using AS7220 Key Benefits & Features The benefits and features of this device are listed below: Benefits Features • Accurate maintenance of CCT and daylight responsive lighting • Calibrated XYZ tri-stimulus color sensing for direct translation to CIE 1931/1976 standard observer color maps • Lifetime-calibrated sensing with minimal drift over t...


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