AS7221-BLGT

AS7221-BLGT Datasheet


AS7221

Part Datasheet
AS7221-BLGT AS7221-BLGT AS7221-BLGT (pdf)
PDF Datasheet Preview
AS7221

XYZ Chromatic Manager for Network Enabled Smart Lighting

The AS7221 Smart Lighting Manager device is part of the ams “Cognitive Lighting ” family of products that enable lights to be “aware” and adapt to their surroundings providing human lighting needs and energy conservation needs autonomously. The device is equipped with an advanced Cognitive Lighting Engine CLE to optimize daylight harvesting, Chromatic White Color tuning, and lumen maintenance while it drives dimming ballasts with direct connection to Local Sensor Networks LSN , like occupancy sensors, dimmers or bridges.

AS7221 XYZ Chromatic White Color sensing provides coordinates consistent with the CIE 1931 color coordinates. It also maps the XYZ coordinates to the x, y z of the 2-dimensional color gamut and scales the coordinates to the CIE 1976 u’v’ coordinate system. The AS7221 integrates standard observer filters into standard silicon via Nano-optic deposited interference filters technology packaged in a 3D wafer level optical package which has no aging effects like plastic packages.

The AS7221 connects to standard 0-10V dimmers inputs and drives 0-10V dimming ballasts/drivers for fluorescent lighting or LED drivers, and LED strings for LED lighting.

A UART interface is provided for configuration, control and management of the CLE. This UART interface responds to simple AT commands.
Ordering Information appears at end of datasheet.
ams Preliminary Datasheet, Confidential [v0-92]

AS7221 1

Key Benefits & Features

The benefits and features of this device are listed below Figure 1 Added Value of Using AS7221
• Accurate control of variable CCT and spectrally tunable lighting
• Automatic spectral and lumen maintenance over temperature and time
• Direct serial interface for connection to standard networks
• Simple lamp or luminaire configuration and commissioning using defined command set
• Compatible with standard dimmer controls and occupancy sensors
• Directly interfaces to LED driver via PWM
• Directly interfaces to ballast via 0-10V
• Small package, wide operating range with critical optics built-in
• XYZ tri-stimulus color sensing for direct translation to CIE 1931 standard observer color map
• Autonomous color point and lumen output adjustment resulting in automatic spectral and lumen maintenance
• Simple UART interface for connection to network hardware clients for protocols such as Bluetooth, WiFi and ZigBee
• Smart Lighting Command Set SLCS uses simple text-based commands to control and configure a wide variety of functions
• Directly interfaces to 0-10V dimmer controls and standard occupancy sensors
• Built-in PWM generator to dim LED lamps and luminaires
• 12-bit resolution for precise dimming down to 1%
• 0-10V analog output for control of conventional dimming ballasts in florescent and LED lamps
• 20-pin LGA package x 2.5mm with integrated aperture
• -40°C to +85°C

Autonomous, networked solid-state lighting manager for variable CCT and daylight harvesting:
• Integrated smart lighting control of variable CCT white lighting solutions
• Luminaires intended to meet California Title 24 daylighting requirements
• Commercial, retail, and residential white/color changing LED lighting systems
• Networked lighting systems with IoT sensor expandability

AS7221 2
ams Preliminary Datasheet, Confidential [v0-92]

Block Diagram

Figure 2 Functional Blocks of AS7221
0_10V_DIM AUX

SDA_M SCL_M

RX TX

VDDHV

Optional Inputs

VDDHV

Dimming & Auxiliary Mode

I2C Master

Cognitive Lighting Engine CLE

Chromatic White XYZ Sensors

Outputs VDD

PWM Generator
Ordering & Contact Information
Figure 34 AS7221 Ordering Information 1
Ordering Code

AS7221BLGT

XYZ Chromatic White Sensor with Control Interfaces and Network Access

Delivery Form

Tape & Reel 2000 pcs/reel

Package
20-pin LGA
1 Notes:
• Required companion 4Mb serial Flash memory must be ams verified is ordered from the Flash memory supplier e.g. AT25SF041-SSHD-B from Adesto Technologies
• AS7221 Flash memory software is available from ams

Online product information is available at Buy our products or get free samples online at Technical Support is available at Provide feedback about this document at For further information and requests, e-mail us at For sales offices, distributors and representatives, please visit:

Headquarters ams AG Tobelbaderstrasse 30 8141 Premstaetten Austria, Europe

Tel +43 0 3136 500 0 Website:

AS7221 28
ams Preliminary Datasheet, Confidential [v0-92]

RoHS Compliant & ams Green Statement

RoHS The term RoHS compliant means that ams AG products fully comply with current RoHS directives. Our semiconductor products do not contain any chemicals for all 6 substance categories, including the requirement that lead not exceed by weight in homogeneous materials. Where designed to be soldered at high temperatures, RoHS compliant products are suitable for use in specified lead-free processes.
ams Green RoHS compliant and no Sb/Br ams Green defines that in addition to RoHS compliance, our products are free of Bromine Br and Antimony Sb based flame retardants Br or Sb do not exceed by weight in homogeneous material .

Important Information The information provided in this statement represents ams AG knowledge and belief as of the date that it is provided. ams AG bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. ams AG has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ams AG and ams AG suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
ams Preliminary Datasheet, Confidential [v0-92]

AS7221 29

Copyrights & Disclaimer

Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten, Austria-Europe. Trademarks Registered. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.

Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its General Terms of Trade. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. This product is provided by ams AG “AS IS” and any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed.
ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.

AS7221 30
ams Preliminary Datasheet, Confidential [v0-92]

Document Status

Document Status

Product Preview

Preliminary Datasheet

Datasheet

Datasheet Discontinued

Product Status

PreDevelopment

PreProduction

Production

Discontinued

Definition

Information in this datasheet is based on product ideas in the planning phase of development. All specifications are design goals without any warranty and are subject to change without notice

Information in this datasheet is based on products in the design, validation or qualification phase of development. The performance and parameters shown in this document are preliminary without any warranty and are subject to change without notice
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Datasheet ID: AS7221-BLGT 519761