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TMD27723 Ambient Light Sensor

Digital ambient light sensor, proximity sensor and IR LED in an optical module 1.8V I2C

特点

  • Integrated ALS, proximity sensor, and IR LED
  • ALS based on patented dual-diodes
  • 1M:1 dynamic range
  • Proximity detection calibrated and trimmed to provide consistent reading
  • Programmable LED drive current

优势

  • Module reduces board space and design effort
  • Enables operation in IR light environments
  • Allows accurate sensing behind spectrally distorting materials (e.g. dark glass)
  • Pre-calibration eliminates need for customer to calibrate the end-product
  • Allows multiple power level selection without external passives

产品参数

Supply Voltage [V] 2.6 - 3.6
I²C Bus 1.8
Programmable Gain, integration time, interrupt
Integrated Capabilities ALS, Prox, LED Drvr. IR LED
Recommended Operating Distances [cm] <15
Temperature Range [°C] -40 to 85
Package Surface mount module, pin count 8

综述

The TMD2772 family of devices provides digital ambient light sensing (ALS), a complete proximity detection system, and digital interface logic in a single 8-pin surface mount module. The devices are register-set and pin-compatible with the TMD2771 family of devices and include new and improved ALS and proximity detection features. The ALS enhancements include a reduced gain mode that extends the operating range in sunlight. Proximity detection includes improved signal-to-noise performance and more accurate factory calibration. 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.

本产品适用于以下应用:

  • Touchscreen control
  • Display backlight control
  • Medical diagnostics
  • Industrial process control
  • Optical switch

工具

标题 分类 主标题 购买
TMD2772EvalKit Application Board Evaluation Kit for TMD2772

技术文档

类别 描述 语言
Datasheet Document version 1-21 English
Application Note I2C Timing Requirements English
Application Note Proximity Detection and Link Budget (DN38) English
Application Note Proximity Detection and IR Ink (DN 35) English
Application Note Proximity Calibration and Test (DN 37) 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

环境文档

类别 描述 语言
RoHS Certificate RoHS Certificate_TMD2772_TMD2772WA English

通知

类别 描述 语言
EoL Notification TMD27723INT17 (issued 2018-Mar) English
Product Change Notification CN15-2016 (TSL26721, TMD27723) English
Product Change Notification PCN42-2020 (issued 2020-Aug) English

其他信息

类别 描述 语言
Block Diagram TMD2772 Block Diagram English
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