ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

AS7221 CCT Tuning Smart Lighting Manager

Network-enabled sensing and integrated IoT luminaire management for spectrally tunable systems


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, enables easy integration to standard network clients.

Key Features

  • XYZ tri-stimulus sensor for accurate CCT/spectral control
  • Compatible with standard dimmer, occupancy controls and ballasts
  • Built-in PWM generator for precise 1% dimming
  • 2.3 x 2.5mm WLCSP or 4.4 x 4.5mm LGA packages

Key Benefits

  • Networked CCT/spectral tuning management
  • Direct 0-10V inputs/outputs
  • Direct PWM interfaces
  • Choice of compact 20-pin packages

Product Facts

Sensor Type True Color XYZ (CIE)
Application IoT CCT Tuning
UART Serial
Reference Networking BLE, Serial
Smart Ltg Command Set Yes
Lux/CCT Control CCT/Lux Command Set
I²C Master
Package LGA(5x5)

Additional Information


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