TMD2725 Ambient Light Sensor
3-in-1 small aperture ambient light sensor, proximity sensor and IR LED in an optical module 1.8V I2C
Features
- 1.055mm emitter to detector distance
- ALS and Proximity
- 2mm x 3.65mm x 1mm
- Integrated IR LED
- Power management features
- I²C fast mode interface compatible
- Photopic ambient light sensor (ALS)
- UV / IR blocking filters
- Programmable gain and integration time
- 1.8V power supply with 1.8V I2C bus
Benefits
- Meets small aperture requirements
- Single device integrated optical solution
- Accurate ambient light sensing
- Reduced power consumption
Product parameters
| Supply Voltage [V] | 1.7 - 2.0 |
|---|---|
| I²C Bus | 1.8 |
| Programmable | Gain, integration time, interrupt |
| Integrated Capabilities | ALS, Prox, IR LED |
| Recommended Operating Distances [cm] | <15 |
| Temperature Range [°C] | -30 to 85 |
| Package | Surface mount module, pin count 8 |
General description
The device features advanced proximity measurement and digital ambient light sensing (ALS). The package has been designed to accommodate a single small aperture approach. The module incorporates an IR LED and factory calibrated LED driver. The proximity detection feature provides object detection (e.g. mobile device screen to user’s ear) by photodiode detection of reflected IR energy (sourced by the integrated LED). Detect/Release events are interrupt driven, and occur when proximity result crosses upper and/or lower threshold settings. The proximity engine features offset adjustment registers to compensate for unwanted IR energy reflection at the sensor. Proximity results are further improved by automatic ambient light subtraction. The ALS detection feature provides photopic light intensity data. The ALS photodiode has UV and IR blocking filters and a dedicated data converter producing 16-bit data. This architecture allows applications to ccurately measure ambient light which enables devices to calculate illuminance to control display backlight.
This product suits for the following applications:
- Ambient light sensing
- Single hole proximity detection for mobile phone touch screen disable
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| TMD2725EvalKit | Application Board | Evaluation Kit for TMD2725 |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | Document version 2-00 | 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 |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| RoHS Certificate | RoHS Certificate_TMD2725 | English |
Notifications
| Type | Description | Language | ||
|---|---|---|---|---|
| EoL Notification | TSL25913, TMD27253 (issued 2020-Dec) | English | ||
| Product Change Notification | CN06-2018 (TMD2725) | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | TMD2725 Block Diagram | English |
Related boards
Evaluation Kit for TMD2725
TMD2725EvalKit
Related products
TMD2620 Proximity Detection Module
TMD2620
