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.



  • 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


  • 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

Ordering codes

Product Type Description Order No. Availability




User guides

Application note

Technical documents

Lifecycle documents