TMD27721WA Digital Ambient Light Sensor
Digital ambient light sensor, proximity sensor and IR LED in an optical module Vdd I2C
特徴
- Ambient light sensing, proximity detection, and IR LED in a single module
- Wide variety of programmable features with very high sensitivity
- Proximity detection
- Maskable ALS and proximity interrupt
- Power management
- I²C fast mode compatible interface
- 3.94mm x 2.36mm x 1.35mm package
- Available with standard 25° (TMD2772) and wide 50° (TMD2772WA)
利点
- Minimizes board space requirements
- Approximates human eye response over a wide variety of lighting conditions
- Reduces external processor burden
- Enables dynamic power dissipation control
- Industry standard two-wire interface
- Small foot print module
- Optimizes ambient light sensing angle
製品パラメーター
Supply Voltage [V] | 2.2 – 3.6 |
---|---|
I²C Bus | VDD |
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 |

概要
The TMD2772WA 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 and are available with 25° and 50° fields of view. 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.

ツール
タイトル | カテゴリー | 見出し | 購入 |
---|---|---|---|
TMD2772WAEvalKit | Application Board | Evaluation Kit for TMD2772WA |
技術資料
タイプ | 品目 | 言語 | ||
---|---|---|---|---|
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 | Basic Pre-Production Light & Color Sensor Solution Validation Process | English |
その他の情報
タイプ | 品目 | 言語 | ||
---|---|---|---|---|
Block Diagram | TMD2772WA Block Diagram | English |