Summary of AS7221, AN IOT SMART LIGHTING MANAGER
The AS7221 is an IoT smart lighting manager by ams AG featuring integrated white-tunable control and tri-stimulus color sensing. It enables network connectivity via UART for protocols like Bluetooth, ZigBee, and WiFi, while supporting direct 0-10V dimmer connections. The device offers autonomous spectral maintenance, precise PWM dimming with 12-bit resolution, and interfaces with occupancy sensors. Designed for compact integration in luminaires and replacement lamps, it serves applications in smart homes, retail, and industrial lighting.
Parts used in the AS7221 Smart Lighting Manager:
- Tri-stimulus color sensor
- UART interface
- PWM generator
- 0-10V analog output
- Network client support (Bluetooth, ZigBee, WiFi)
- Occupancy sensor interface
- 20-pin LGA package
ams AG, a multinational semiconductor manufacturer and provider of high performance sensors and analog ICs, had announced the AS7221, an integrated white-tunable smart lighting manager that can be controlled through its network connection by means of simple text-based commands.
AS7221 is a networking-enabled IoT Smart Lighting Manager with embedded tri-stimulus color sensing for direct CIE color point mapping and control. 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 and analog 0-10V to dimming ballasts. A simple text-based Smart Lighting Command Set and serial UART interface, enable easy integration to standard network clients.
Key features of AS7221:
- Calibrated XYZ tri-stimulus color sensing for direct translation to CIE 1931/1976 standard observer color maps
- 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, ZigBee and WiFi
- 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 a current steering design
- 20-pin LGA package 4.5mm x 4.7mm x 2.5mm with integrated aperture
The AS7221 is the first extension to ams’s recently announced Cognitive Lighting™ smart lighting manager family. The compact AS7221 will be available in a 5x5mm LGA package, for flexible integration into both luminaires and larger replacement lamps.
There are main domains of AS7221 applications, some of them are:
- Smart home and smart building
- Variable CCT general lighting industrial lighting
- Retail and hospitality lighting with white-color tuning
- LED tro ers, panel and downlights
- LED replacement lamps (LED bulbs)
Pricing for the AS7221 Spectral Tuning IoT Smart Lighting Manager is set at $3.13 in quantities of 10,000 pieces, and is available in production volumes now.
Source: AS7221, AN IOT SMART LIGHTING MANAGER
- How does the AS7221 control lighting?
It controls lighting through a network connection using simple text-based commands or via direct connection to 0-10V dimmers. - Can the AS7221 interface with standard occupancy sensors?
Yes, it directly interfaces to standard occupancy sensors and 0-10V dimmer controls. - What is the best way to integrate the AS7221 with network hardware?
Use the simple UART interface to connect to network hardware clients supporting protocols such as Bluetooth, ZigBee, and WiFi. - Does the AS7221 support precise dimming capabilities?
Yes, it features a built-in PWM generator with 12-bit resolution for precise dimming down to 1%. - What type of color sensing does the AS7221 use?
It uses calibrated XYZ tri-stimulus color sensing for direct translation to CIE 1931/1976 standard observer color maps. - How can the AS7221 control conventional dimming ballasts?
It provides a 0-10V analog output for control of conventional dimming ballasts in a current steering design. - Is the AS7221 suitable for LED replacement lamps?
Yes, it is designed for flexible integration into both luminaires and larger replacement lamps like LED bulbs. - What is the pricing for the AS7221 in production volumes?
The price is set at $3.13 in quantities of 10,000 pieces.
