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TSL25911 Ambient Light Sensor

Light-to-digital converter with Vdd I2C interface

Features

  • Highest sensitivity to 188µLux
  • Patented dual-diode architecture
  • 600M:1 dynamic range
  • Programmable interrupt function
  • UV-rejection package
  • Area efficient 2mm x 2.4mm Dual Flat no-lead (FN) package

Benefits

  • Design flexibility for dark glass and placement
  • Enables operation in IR light environments
  • Enables dark room to sunlight operation
  • Reduces microprocessor interrupt overhead
  • Improves lux accuracy across various light sources

Product parameters

Supply Voltage [V] 2.7 - 3.6
Interface I2C - VDD
Programmable Gain, integration time, interrupt
Max. Lux 88000
Temperature Range [°C] -30 to 70
Packages FN (6-Pin)
Remark Industry leading dynamic range which drives both ultra low light sensitivity and bright sunlight operation

General Description

The TSL2591 is a very high sensitivity light-to-digital converter that transforms light intensity into a digital signal output capable of direct I2C interface. The device combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit. Two integrating ADCs convert the photodiode currents into a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The TSL2591 supports a traditional level style interrupt that remains asserted until the firmware clears it.

This product suits for the following applications:

  • Display backlight control
  • Keyboard illumination control
  • Solid state and general lighting control
  • Printer paper detection

Tools

Title Category Headline Buy
TSL2591EvalKit Application Board Evaluation Kit for TSL2591

Resources

Name Type Description Language
TSL2591_AD000130_2-00.zip Application Data Refboard English
TSL2591_SW000213_1-00.zip Software English

Technical Documents

Name Type Description Version Language
AmbientLightSensors_AN000104_1-00.pdf Application Note Optical Window Design (DN13B) 1-00 English
AmbientLightSensors_AN000167_2-00.pdf Application Note Radiometric and Photometric Measurements (DN21) 2-00 English
AmbientLightSensors_AN000168_2-00.pdf Application Note Sensitivity to Wavelength (DN23) 2-00 English
AmbientLightSensors_AN000169_2-00.pdf Application Note Sensitivity to Temperature (DN24) 2-00 English
AmbientLightSensors_AN000170_2-00.pdf Application Note Using the Lux Equation (DN29A) 2-00 English
AmbientLightSensors_AN000171_2-00.pdf Application Note Auto-gain Algorithm (DN39) 2-00 English
AmbientLightSensors_AN000172_2-00.pdf Application Note Ambient Light Sensing (DN26) 2-00 English
AmbientLightSensors_AN000173_2-00.pdf Application Note Custom Lux Equation (DN28) 2-00 English
AmbientLightSensors_AN000268_1-00.pdf Application Note Improving Color Sensor Lux Accuracy 1-00 English
AmbientLightSensors_AN000530_1-00.pdf Application Note TSL258x: Accurate ADC Readings after Enable (DN42) 1-00 English
LightSensors_AN000519_1-00.pdf Application Note Colorimetry Tutorial (DN 20) 1-00 English
TSL2591_BD000159_1-00.png Block Diagram TSL2591 Block Diagram 1-00 English
TSL2591_DS000338_6-00.pdf Datasheet Document version 2-04 6-00 English
TSL2591_FS000121_1-00.pdf Factsheet Ambient Light Sensors 1-00 English
TSL25911_PD000350_1-00.png Other Product Document TSL2591EvalKit Image 1-00 English

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