TCS3772 Color LighttoDigital Converter with Proximity Sensing The TCS3772 device family provides red, green, blue, and clear General Description (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. The color sensing feature is useful in applications such as LED RGB backlight control, solid state lighting, reflected LED color sampler, or fluorescent light color temperature detection. With the addition of an IR blocking filter, the device is an excellent ambient light sensor, color temperature monitor, and general purpose color sensor. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of this device are listed below: Figure 1: Added Value of Using TCS3772 Benefits Features Integrated RGB and Clear Color Sensing and Proximity Single Device Reduces Board Space Detection Enables Flexible Operation for Wide Programmable Color Sensing and Proximity Detection Range of Applications Enables Accurate Color and Ambient Light Sensing Under Varying Lighting Integrated IR Blocking Filter Conditions Enables Operation within Wide Range of 3.8M:1 Dynamic Range Lighting Conditions ams Datasheet Page 1 v1-01 2018-Mar-14 Document FeedbackT C S3 772 Gen e ra l De s c rip t ion Color Light Sensing with IR-Blocking Filter Programmable Analog Gain and Integration Time 3 800 000:1 Dynamic Range Very High Sensitivity Ideally Suited for Operation Behind Dark Glass Proximity Detection Ambient Light Rejection Programmable Integration Time Current Sink Driver for External IR LED Maskable Light and Proximity Interrupt Programmable Upper and Lower Thresholds with Persistence Filter Power Management Low Power 2.5-A Sleep State 65-A Wait State with Programmable Wait State Time from 2.4 ms to > 7 Seconds 2 I C Fast Mode Compatible Interface Data Rates up to 400 kbit/s Input Voltage Levels Compatible with V or 1.8 V Bus DD Register Set and Pin Compatible with the TCS3x71 Series Small 2 mm 2.4 mm Dual Flat No-Lead (FN) Package Applications The applications of TCS3772 include: RGB LED Backlight Control Ambient Light Color Temperature Sensing Cell Phone Touch Screen Disable Mechanical Switch Replacement Industrial Process Control Medical Diagnostics End Products and Market Segments HDTVs, Mobile Handsets, Tablets, and Portable Media Payers Medical and Commercial Instrumentation Toys Solid State and General Lighting Page 2 ams Datasheet Document Feedback v1-01 2018-Mar-14