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 |