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
Application fields
Ordering codes
Downloads
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.
Product selector
Find the right product.
More ambient light, color, spectral & proximity sensors
Industry's broadest portfolio of high-performance and high-sensitivity digital discrete and integrated module optical sensors including ambient light sensors, RGB and XYZ color sensors, and spectral sensors.