ams OSRAM TSL2572 Light to Digital Converters

ams OSRAM TSL2572 Light to Digital Converters feature 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. In addition, the operating range is extended to 60,000 lux in sunlight when the low-gain model is used. While useful for general-purpose light sensing, the TSL2572 device is particularly useful for display management to provide optimum viewing in diverse lighting conditions while extending battery life. ams OSRAM TSL2572 converters are suited for use in cell phones, TVs, tablets, monitors, and portable media players in which the display backlight may account for 50% to 70% of the system power consumption.


  • Ambient Light Sensing (ALS)
    • Approximates Human Eye Response
    • Programmable analog gain and integration time
    • 45,000,000:1 dynamic range
    • Operation to 60,000 lux in sunlight
    • Very high sensitivity — ideally suited for operation behind dark glass
    • Package UV Rejection Filter
  • Wait timer and power management
    • Low power 2.2µA sleep state with user-selectable sleep-after-interrupt mode
    • 90µA wait state with programmable wait time from 2.7ms to >8s
  • I2C fast mode compatible interface
    • Data rates up to 400kbit/s
    • Input voltage levels compatible with VDD or 1.8V Bus
  • Maskable interrupt: programmable upper and lower thresholds with persistence filter
  • Register Set- and Pin-Compatible with theTSL2x71 series
  • Small 2mm × 2mm dual flat no-lead (FN) package


  • Display backlight control
  • Keyboard illumination control
  • Solid state lighting control for daylight harvesting
  • Printer paper detection
  • Cell phones
  • Tablets
  • Laptops
  • Monitors and TVs
  • Portable media players
  • Medical and industrial instrumentation
  • White goods
  • Toys
  • Industrial / Commercial lighting
  • Digital signage
  • Printers

Block Diagram

ams OSRAM TSL2572 Light to Digital Converters
Publicado: 2013-10-15 | Atualizado: 2023-04-24