TSL27721FN ams

TSL2772 Light-to-Digital Converter with Proximity Sensing The TSL2772 device family provides both ambient light sensing General Description (ALS) and, when coupled with an external IR LED, proximity detection. The device family is based on the ams patented dual-diode technology that enables accurate ALS results and approximates human eye response to light intensity under a variety of lighting conditions. The TSL2772 ALS includes a reduced-gain mode that extends the operating range to 60k lux in sunlight. The device package incorporates a UV-rejection filter that enables accurate ALS. The TSL2772 proximity detection includes improved signal-to-noise performance and selectable gain modes. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false proximity data measurement readings, a proximity saturation indicator bit signals that the internal analog circuitry has reached saturation. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of TSL2772, Light-to-Digital Converter with Proximity Sensing are listed below: Figure 1: Added Value Of Using TSL2772 Benefits Features Enables Operation in IR Light Environments Patented Dual-Diode Architecture Enables Operation in 60K Lux Sunlight and Accurate 8M:1 Dynamic Range Sensing Behind Spectrally Distorting Materials Improves Lux Accuracy Across Varying Light Sources UV-Rejection Package Compensates for Internal System Offset or IR LED Proximity Offset Adjustment Crosstalk Prevents False Proximity Detection in Bright Light Proximity Saturation Indicator Bit ams Datasheet Page 1 v1-00 2016-Aug-26 Document FeedbackT S L2 772 Gen e ra l De s c rip t ion Ambient Light Sensing and Proximity Detection in a Single Device Ambient Light Sensing (ALS) Approximates Human Eye Response Programmable Analog Gain and Integration Time 8000000:1 Dynamic Range Operation to 60000 lux in Sunlight Very High Sensitivity Ideally Suited for Operation Behind Dark Glass Package UV Rejection Filter Proximity Detection Programmable Analog Gain, Integration Time, and Offset Current Sink Driver for External IR LED Saturation Indicator 16000:1 Dynamic Range Maskable ALS and Proximity Interrupt Programmable Upper and Lower Thresholds with Persistence Filter Power Management Low Power 2.2A Sleep State with User-Selectable Sleep-After-Interrupt Mode 90 A Wait State with Programmable Wait Time from 2.7 ms to > 8 seconds IC 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 TSL2x71 Series Small 2 mm 2 mm Dual Flat No-Lead (FN) Package Applications TSL2772, Light-to-Digital Converter with Proximity Sensing is ideal for: Display Backlight Control Cell Phone Touch Screen Disable Mechanical Switch Replacement Industrial Process Control Medical Diagnostics Printer Paper Alignment Page 2 ams Datasheet Document Feedback v1-00 2016-Aug-26