ams TSL25721 Ambient Light Sensor



TSL2572 device family provides ambient light sensing (ALS) that approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. Accurate ALS measurements are the result of TAOS’ patented dual-diode technology and the UV rejection filter incorporated in the package. The operating range can be extended to 60000 LUX when the low-gain mode is use. The TSL2572 device is particularly useful for enabling automatic brightness control (ABC) in large LCD flat-panel TVs and displays by providing optimum viewing in diverse lighting conditions (daytime versus nighttime viewing) while significantly reducing energy consumption to meet the stringent ENERGY STAR requirements.



  • Patented dual-diode architecture
  • 8M:1 dynamic range
  • Programmable interrupt function
  • UV-rejection package
  • Area efficient 2mm x 2mm Dual Flat no-lead (FN) package


  • Enables operation in IR light environments
  • Enables dark room to 60K lux sunlight operation
  • Reduces microprocessor interrupt overhead
  • Improves lux accuracy across various light sources
  • Reduces board space requirements while simplifying designs

Ordering codes

Product Type Description Order No. Availability




Application note

Technical documents

Environmental documents

Lifecycle documents