Replacement Products
ams AS7221 CCT Tuning Smart Lighting Manager
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.
Details
Features
- Calibrated tristimulus XYZ CCT delivers closed loop CCT/daylighting directives to application microprocessor
- I²C and serial UART interfaces with simple text or register-based commands to control and configure key light tuning supervisory functions
- Calibrated-for life nano-optic silicon interference filters for XYZ, CCT, DUV and lux
- Additional master I²C for add-on ambient light sensing
- 20-pin LGA 4.5mm x 4.7mm x 2.5mm, -40°C to +85°C
Benefits
- Maximizes system flexibility and lowers overall manufactured costs while adding precision to tunable white luminaires and lamps
- Easy integration with flexible interface options to support any standard application host microprocessor
- Eliminates light-by-light factory calibration for most tunable white and daylighting luminaires
- Built-in support for daylighting/daylight harvesting systems
- Compact lighting-capable package with no added optics required
Parameters
UART
Yes, supports high level directive interface
Lux/CCT Control
Via I²C directives
I²C
Slave
Package
20-pin LGA with aperture
Sensor Type
CIE tristimulus XYZ
Smart Ltg Command Set
UART commands or I²C register-based parameters
Applications
Closed loop color/daylighting tuning
Reference Networking
Host µP
Application fields
Ordering codes
| Product Type | Description | Order No. | Availability |
|---|---|---|---|
| AS7225-BLGM |
Status information
Full production
Pre-production
Not planned for new design
Ordering and shipping are still possible
Discontinued
|
||
| AS7225-BLGT |
Status information
Full production
Pre-production
Not planned for new design
Ordering and shipping are still possible
Discontinued
|
Downloads
For other documents visit our
Download center
Datasheets
AS7225 DS000496
Datasheet
User guides
AS7225_UG000332_2-00
User guide
Application note
Technical documents
Lifecycle documents
AS72xx_PN000172_1-00
Product change notification (PCN)
Images
AS7225_BD000203_1-00
Block diagram
Related boards, kits & accessories
ams AS7225_DEM_RB_DIRECTOR Demonstrator kit
The Smart Sensor/Director Demo Kit is a complete color tuning luminaire reference design solution, built around the AS7225 smart-sensor enabled lighting director. The AS7225 Demo Kit serves as a self-contained reference design to move developers rapidly from demo to proof-of-concept integration into a prototype luminaire design. The kit consists of a mezzanine style PCB which includes the AS7225 Smart Sensor/Director, warm/cool LED strings for tunable white capabilities, and an on-board 8051 microcontroller that interfaces to the graphical user interface and LED strings, and executes the color tuning directives. The mezzanine connectors enable fast breadboarding, or easy creation of a compatible reference design. Signals on the connectors include I2C which would be routed to an alternate host microcontroller, PWM lines up to the mezzanine board FETs for LED control, and an 8051 disable signal in support of a microcontroller base board. The kit includes 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
ams AS7220 CCT and Lumen Maintenance Manager
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.
ams AS7221 CCT Tuning Smart Lighting Manager
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.
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