AS7220 datasheet(2/33 Pages) OSRAM

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ams Datasheet

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[v1-00] 2017-Feb-16

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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.

General Description

AS7220 데이터시트(PDF) 2 Page - OSRAM GmbH