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TCS37727 Color Sensor

Color light-to-digital converter with proximity sensing, I2C = 1.8V interface


  • Integrated RGB and proximity sensor
  • Programmable color sensing and proximity detection
  • Integrated IR blocking filter
  • 3.8M:1 dynamic range


  • Single device reduces board space
  • Enables flexible operation for wide range of applications
  • Enables accurate color and ambient light sensing under varying lighting conditions
  • Enables operation within wide range of lighting conditions

Product parameters

Supply Voltage [V] 2.7 - 3.6
I²C Bus 1.8V
Programmable Gain, Integration time, Interrupt
Integrated Capabilities ALS, color sensing
Recommended Operating Distances < 15 cm, < 46 cm, < 1 m
Temperature Range [°C] -30 to 70
Package FN, pin count 6

General description

The TCS3772 device family provides red, green, blue, and clear (RGBC) light sensing and, when coupled with an external IR LED, proximity detection. These devices detect light intensity under a variety of lighting conditions and through a variety of attenuation materials, including dark glass. The proximity detection feature allows a large dynamic range of operation for accurate short distance detection, such as in a cell phone, for detecting when the user positions the phone close to their ear. An internal state machine provides the ability to put the device into a low power state in between proximity and RGBC measurements providing very low average power consumption. This data is transferred via an I2C to the host.

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:

  • Mobile handsets
  • Tablets
  • Computers
  • Optical switch
  • Industrial process control

Technical documents

Type Description Language
Datasheet Document version 1-01 English
Application Note Minimizing Crosstalk and Emitter Placement English
Application Note Lux and CCT Calculations (DN 40) English
Application Note Compensating for Light Flicker on Optical Sensors (DN 22) English
Application Note Improving Color Sensor Lux Accuracy English
Application Note Colorimetry Tutorial (DN 20) English
Application Note Basic Pre-Production Light & Color Sensor Solution Validation Process English

Environmental documents

Type Description Language
RoHS Certificate RoHS Certificate_TCS3772 English


Type Description Language
EoL Notification Plano Test Site (issued May-20-2021) English

Other information

Type Description Language
Block Diagram TCS3772 Block Diagram English
Factsheet Color Sensors and Proximity Detection English
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