AS7221 CCT Tuning Smart Lighting Manager
Tunable white lighting, simplified!
Features
- Intelligent controller with integrated XYZ tristimulus sensor
- Selectable drive modes, including PWM-switched current steering or PWM-based duty cycle management
- Built-in 0-10V analog or PWM digital dimming outputs generator for precise 1% dimming
- 20-pin LGA 4.5mm x 4.7mm x 2.5mm, -40°C to 85°C
Benefits
- Lowers overall manufactured costs and adds precision to tunable white luminaires and lamps
- Enables cost-optimized single channel drivers to deliver a precise tunable white result
- Supports legacy IO approaches, as well as digital deep dimming
- Compact lighting-capable package with no added optics required
Product parameters
| Sensor Type | True color XYZ (CIE) |
|---|---|
| Applications | CCT tunable luminaires and IoT smart lights |
| UART | Serial |
| Reference Networking | BLE, serial |
| Smart Ltg Command Set | Yes |
| Lux/CCT Control | CCT/Lux command set |
| I²C | Master to support TSL45315 ALS |
| Package | LGA (5x5x2.5) |
General description
Simplify tunable white lighting systems with the AS7221 sensor-integrated IoT smart lighting manager. The AS7221 will lower the manufactured cost of your tunable white lighting system. Closed loop calibrated tri-stimulus color sensing for direct CIE color point mapping and control enables lower precision components to produce a higher-quality tunable white luminaire or replacement lamp. Pre-calibrated to a typical 2 SDCM accuracy, this network enabled chip-scale solution uses a simple text-based smart lighting command set via the serial UART interface to deliver easy integration to standard network clients. Legacy controls are also supported with direct connection to 0-10V controls,. Control outputs include direct PWM management of digital LED drivers or analog 0-10V for standard dimmable drivers.
This product suits for the following applications:
- Integrated smart lighting control of variable CCT white lighting solutions
- Intelligent, networked solid-state lighting manager for variable CCT and daylight harvesting
- Networked lighting systems with IoT sensor expandability
- Commercial, retail, and residential white/color changing LED lighting systems
- Luminaires intended to meet California Title 24 daylighting requirements
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS7221/20/11/10 Smart Lighting IntegrationKit | Application Board | Smart Lighting Integration Kit for AS722x/1x |
Resources
| Type | Description | Language | ||
|---|---|---|---|---|
| Evaluation Software | AS72xx_EvalSW_v5-1-0.zip AS72xx Firmware Update using GUI | EN | ||
| App | AS72xx_App_v5-1.zip Configuration Tool for AS72xx | EN | ||
| Evaluation Software | AS7221_EvalSW_v4-2-1.zip AS7221_DashBoard_Software_For_AS7221 | EN | ||
| App | AS7221_App_v2017-09-22.zip AS7221 Android App | EN |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | AS7221 CCT Tuning Smart Lighting Manager | English | ||
| Application Note | How to program AS72xx firmware with FlashCatUSB | English | ||
| Application Note | External Flash program and update | English | ||
| Application Note | AS72xx – EEPROM Updating using I2C 1V02 | English | ||
| Application Note | AS72xx External Flash program and update 10V1 | English | ||
| Application Note | AS72xx How to Flash AS72xx Firmware using | English | ||
| Application Note | True Color Luminaire Design Bluetooth Connected | English | ||
| Application Note | AS72xx How to Program AS72xx Firmware with FlashCatUSB 1V24 | English | ||
| User Guide | AS7221 Spectral Sensor Dashboard Installation & Operation Guide | English | ||
| User Guide | AS7221 Smart Lighting Integration Kit (SLIK) User Guide | English | ||
| Other Product Document | ams Smart Lighting Short Intro-Jun 2018 | English |
Notifications
| Type | Description | Language | ||
|---|---|---|---|---|
| Product Change Notification | CN25-2019 (Customer Information AS72xx) | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | AS7221 Block Diagram | English |
Related boards
Smart Lighting Integration Kit for AS722x/1x
AS7221/20/11/10 Smart Lighting IntegrationKit
The Smart Lighting Integration Kit (SLIK) is a complete color tuning luminaire reference design solution, built around the AS7221 network-enabled smart lighting manager. The kit applies to the full AS72xx smart lighting manager, including the AS7221, AS7220, AS7211, and AS7210. The integration kit is designed to move developers rapidly from demo to proof-of-concept integration into a prototype luminaire design. It consists of two interconnected modules: the AS7221 sensor, networking and power module with integrated Bluetooth Smart (BLE); and the LED module with two strings of white LEDs for tuning (warm and cool). The SLIK includes the 2-section board, a diffuser, USB to serial interface cable, and power supply with US/European adapter. The included memory stick includes complete user documentation, GUI and drivers.
Related products
AS7220 CCT and Lumen Maintenance Manager
AS7220
Simplify single or selectable CCT luminaire and replacement lamp designs with the AS7220 calibrated CCT and lumen maintenance smart lighting manager. Closed loop calibrated tri-stimulus color sensing for direct CIE color point mapping and control enables lower precision components to produce a higher-quality single or selectable-CCT luminaire or replacement lamp.
Configurable single CCT lifetime target values are stored at the time of manufacture, allowing the AS7220 to manage independent LED strings to assure consistent CCT over time, temperature, and the full range of dimming. In addition, a selection of industry standard CCT targets can be selected via resistor configuration to enable a single BOM to satisfy multiple CCT SKUs while increasing lifetime color precision. Target lumen output lux-criteria are similarly configurable and are used by the AS7220 to map internal lux to manage LED strings to replace "percent of drive current" with "percent of rated lumen output", for all dimming operations.
Legacy controls are fully supported with direct connection to 0-10V control,. Control outputs include direct PWM management of digital LED drivers or analog 0-10V for standard dimmable drivers.
Configurable single CCT lifetime target values are stored at the time of manufacture, allowing the AS7220 to manage independent LED strings to assure consistent CCT over time, temperature, and the full range of dimming. In addition, a selection of industry standard CCT targets can be selected via resistor configuration to enable a single BOM to satisfy multiple CCT SKUs while increasing lifetime color precision. Target lumen output lux-criteria are similarly configurable and are used by the AS7220 to map internal lux to manage LED strings to replace "percent of drive current" with "percent of rated lumen output", for all dimming operations.
Legacy controls are fully supported with direct connection to 0-10V control,. Control outputs include direct PWM management of digital LED drivers or analog 0-10V for standard dimmable drivers.
AS7225 Smart Lighting Director
AS7225
Not recommended for new designs. See AS7221 superset product.
Simplify tunable white lighting systems with the AS7225 sensor-integrated IoT smart sensor/director. The AS7225 will lower the manufactured cost of your tunable white lighting system, while allowing maximum IoT flexibility by working in conjunction with any standard application host microprocessor. CCT-calibrated tri-stimulus color sensing for direct CIE color point mapping translates CCT targets to warm/cool string directives.
Adaptive algorithmic support enables a companion application host 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 serial UART or I²C bus. Sensor integration plus closed loop control enables lower precision system components to produce a higher-quality tunable white luminaire or replacement lamp.
Simplify tunable white lighting systems with the AS7225 sensor-integrated IoT smart sensor/director. The AS7225 will lower the manufactured cost of your tunable white lighting system, while allowing maximum IoT flexibility by working in conjunction with any standard application host microprocessor. CCT-calibrated tri-stimulus color sensing for direct CIE color point mapping translates CCT targets to warm/cool string directives.
Adaptive algorithmic support enables a companion application host 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 serial UART or I²C bus. Sensor integration plus closed loop control enables lower precision system components to produce a higher-quality tunable white luminaire or replacement lamp.
AS7211 IoT Smart Daylighting Manager
AS7211
AS7211 is a networking-enabled IoT smart lighting manager with embedded digital ambient light sensor providing closed-loop and automatic daylighting management. IoT luminaire control is through a network connection, or by direct connection to 0-10V dimmers, with control outputs that include direct PWM to LED drivers or analog 0-10V to standard dimming ballasts. A simple text-based smart lighting command set and serial UART interface, enables easy integration to standard network clients.
Not Recommended for New Designs
ams-OSRAM AG does not recommend using this product for new designs. Please see superset product AS7221 for possible replacement or contact your local sales representative for further information.
Not Recommended for New Designs
ams-OSRAM AG does not recommend using this product for new designs. Please see superset product AS7221 for possible replacement or contact your local sales representative for further information.
TSL25721 Ambient Light Sensor
TSL25721
TSL2572 device family provides ambient light sensing (ALS) that approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. Accurate ALS measurements are the result of TAOS’ patented dual-diode technology and the UV rejection filter incorporated in the package. The operating range can be extended to 60000 LUX when the low-gain mode is use. The TSL2572 device is particularly useful for enabling automatic brightness control (ABC) in large LCD flat-panel TVs and displays by providing optimum viewing in diverse lighting conditions (daytime versus nighttime viewing) while significantly reducing energy consumption to meet the stringent ENERGY STAR requirements.