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Digital proximity detector, LED drvr., Vdd I2C interface


  • Patented dual-diode architecture
  • Programmable proximity offset adjustment
  • Proximity saturation indicator bit
  • Programmable LED drive current


  • Enables operation in IR light environments
  • Eliminates IR LED system cross talk
  • Prevents false proximity detection in bright light
  • Allows multiple power level selection without external passives

Product parameters

Supply Voltage [V] 2.4 - 3.6
Programmable Gain, Integration time, Interrupt
Integrated Capabilities and Components
Recommended Operating Distances [cm] < 15, < 46
Temperature Range [°C] -30 to 70
Package FN, pin count 6

General description

The TSL2672 family of devices provides proximity detection when coupled with an external IR LED. The devices incorporate a constant-current LED sink driver to pulse the external IR LED and achieve very low average power consumption using the low power wait state with programmable wait time between proximity measurements. In addition, the devices are register-set and pin-compatible with the TSL2671 series and include a number of new and improved features, such as improved signal-to-noise and measurement accuracy. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false measurements, a proximity saturation bit indicates that the internal analog circuitry saturated. Interrupts have been enhanced with the addition of a sleep-after-interrupt feature that also allows for single-cycle operation.

Not Recommended for New Designs!

ams-OSRAM AG is discontinuing production of this device. Final lifetime buy order must be placed by OCTOBER 15, 2021. Please contact your local sales representative for further information regarding available or planned replacement options.

This product suits for the following applications:

  • Touchscreen control
  • Notebook and monitor security
  • Industrial process control
  • Printer paper alignment and detection
  • Optical switch


Title Category Headline Buy
TSL2672EvalKit Application Board Evaluation Kit for TSL2672

Technical documents

Type Description Language
Datasheet TSL2672 datasheet v1-01 English
Application Note Signal, Noise, Offset and Proximity Sensors (DN33) English
Application Note Signal, Noise, Offset - TSL2771 (DN33.1 Appendix) English
Application Note Signal, Noise, Crosstalk - TCS3771 (DN33.2 Appendix) English
Application Note Colorimetry Tutorial (DN 20) English
Application Note Optimizing Proximity Parameters English
Application Note Basic Pre-Production Light & Color Sensor Solution Validation Process English


Type Description Language
EoL Notification Plano Test Site (issued May-20-2021) English
Product Change Notification CN15-2016 (TSL26721, TMD27723) English
Product Change Notification PCN42-2020 (issued 2020-Aug) English

Other information

Type Description Language
Block Diagram TSL2672 Block Diagram English
Factsheet Proximity Detection Sensors English
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