TMD2755 ALS and Proximity Sensor
Extremely narrow 1.1mm ambient light sensor and proximity detection module
Features
- Small narrow 1.1mm x 3.25mm x 0.60mm module
- 1.8V power supply with 1.8V I²C bus
- Crosstalk and ambient light cancellation
- 2 channels (photopic ALS + IR) with programmable gain and integration time
- Offset emitter/detector package design
Benefits
- Optimized for narrow bezel mobile phones
- Reduced power consumption
- Enabled superior proximity detection
- Accurate ambient light sensing
- Industrial design flexibility
Product parameters
| Supply Voltage [V] | 1.7 - 1.98 |
|---|---|
| I²C Bus | 1.8V |
| Programmable | Gain, Integration time, Interrupt |
| Integrated Capabilities | VCSEL |
| Recommended Operating Distances [cm] | <15 |
| Temperature Range [°C] | -30 to 85 |
| Package | OLGA, pin count 6 |
General description
The TMD2755 features proximity detection and digital ambient light sensing (ALS). The extremely narrow 1.1mm module incorporates an IR VCSEL and factory calibrated VCSEL 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 VCSEL). Detect/release events are interrupt driven, and occur when proximity result crosses upper and/or lower threshold settings. The proximity engine features a wide range offset adjustment to compensate for unwanted IR energy reflection at the sensor. Proximity results are further improved by automatic ambient light subtraction. The ALS and IR photodiodes have dedicated data converters producing 16-bit data. This architecture allows applications to accurately measure ambient light which enables devices to calculate illuminance to control display backlight.
This product suits for the following applications:
- Mobile phone display management
- Mobile phone user proximity detection
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| Evaluation Kit for TMD2755 | Application Board | Evaluation Kit for TMD2755 |
Resources
| Type | Description | Language | ||
|---|---|---|---|---|
| Evaluation Software | TMD2755_EvalSW_v1-0-1.zip | EN | ||
| Driver | TMD2755_Driver_Linux_v1.14.zip | EN | ||
| Driver | TMD2755_Driver_Linux_v1.13.zip | EN |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | TMD2755 Datasheet v6-00 | English | ||
| Application Note | This application note discusses the challenges associated with narrow channel, large air gap designs using the TMD2755 | English | ||
| Application Note | TMD2755 Temperature Sensor Function | English | ||
| Application Note | Basic Pre-Production Light & Color Sensor Solution Validation Process | English | ||
| Product Brief | TMD2755 Product Brief | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| RoHS Certificate | TMD2755 RoHS Certificate | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | Block diagram TMD2755 | English |
Related boards
Evaluation Kit for TMD2755
Evaluation Kit for TMD2755
