AS7225-BLGT Datasheet
Sensors, Transducers - Optical Sensors - Ambient Light, IR, UV Sensors - DIGITAL
Download: AS7225-BLGT Datasheet 
AS7225-BLGT
Sensors, Transducers - Optical Sensors - Ambient Light, IR, UV Sensors - DIGITAL
AS7225
Calibrated XYZ Chromatic Smart Lighting Director
General
Description
The As7225 Smart Lighting Director Incorporates An Embedded Digital Tri-stimulus Chromatic
'calibrated For Life' Nano-optic Sensor Providing Direct Cie1931 Xyz And Cie 1976 U'v' Coordinate
Mapping. Adaptive Algorithmic Support Enables A Companion Microprocessor To Implement Closed-loop,
Autonomous Adjustment Of Variable Cct And Daylight Responsive Led Lamps And Luminaires. The As7225
Arrives Pre-calibrated, And Is Designed For Rapid Integration Into White-tunable And Daylight
Responsive Luminaire Designs, Delivering Directives To The Local Microprocessor Via An
industry-standard I C bus.
An Additional On-chip I C Master Provides Native Support For Select Ams Sensors, Such As The
Tsl4531 For Combining In-looking Cct Tunable Director Functions With Outward-looking Ambient Light
Sensing And Daylighting Control. The As7225 Integrates Standard-observer Filters Onto The 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.
Ordering Information and Content Guide appear at end of datasheet.
Figure 1: Added Value of Using AS7225
Key Benefits &
FEATURES
The benefits and
FEATURES of this device are listed below:
Benefits
FEATURES
Provides Accurate External Host Mcu Supervision Of Variable Cct And Spectrally Tunable Lighting
Integrated Intelligence With Xyz Tri-stimulus Color Sensing For Direct Translation To Cie 1931
standard observer color map
Uses Accurate Xyz Sensed Data To Provide A Host Mcu, With Its Own Pwms, Simple To Use Directives For
closed loop tuned LED lighting
Automatically Directs External Warm And Cool White Pwm Controlled Led Strings For Chromatic Led
luminaire tuning. Also directs dimming (combined with PWM color tuning)
Automatic spectral and lumen maintenance over temperature and time
Supports Autonomous Color Point And Lumen Output Adjustment Resulting In Automatic Spectral And
lumen maintenance
ams Datasheet [v1-00] 2016-Dec-29
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AS7225 General
Description
Benefits
FEATURES