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TSL2580 Ambient Light Sensor

Light-to-digital converter with SMBus interface

Features

  • Patented dual-diode architecture
  • 1M:1 dynamic range
  • SMBus digital interface
  • 3µA quiescent current
  • Available in 1.25mm x 1.75mm chip-scale or 2mm x 2mm Dual Flat no-lead (FN) packages

Benefits

  • Enables operation in IR light environments
  • Enables dark room to high lux sunlight operation
  • Digital interface is less susceptible to noise
  • Enables low standby power consumption
  • Reduces board space requirements while simplifying designs

Product parameters

Supply Voltage [V] 2.7 - 3.6
Interface SMBus
Programmable Gain, integration time
Max. Lux 10000
Temperature Range [°C] -30 to 70
Packages FN, CS (6-Pin)
Remark Not recommended for new designs. Please see TSL2571x device family.

General Description

The TSL2580 is a very high sensitivity light-to-digital converter that transforms light intensity to a digital signal output capable of SMBus (TSL2580) interface. Each device combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit capable of providing a near photopic response over an effective 16-bit dynamic range (16-bit resolution). Two integrating ADCs convert the photodiode currents to 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 TSL2580 device permits an SMB-Alert style interrupt, 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

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
TSL2580_BD000157_1-00.png Block Diagram TSL2580 Block Diagram 1-00 English