TMD3725 Color Sensor Module
3-in-1 small aperture color light sensor, proximity sensor and IR LED in an optical module 1.8V I²C
Features
- RGB + IR filters
- High sensitivity down to mLux levels
- 0.18µm process technology with 1.8V I²C
- 1M:1 dynamic range
- Programmable proximity offset adjustment
- Proximity automatic ambient light subtraction
Benefits
- Provides <10% CCT accuracy
- Design flexibility for dark glass & placement
- Reduces power consumption
- Enables dark room to sunlight operation
- Compensates for unwanted IR energy system crosstalk reflection
- Compensates for unwanted ambient light photodiode current
Product parameters
| Supply Voltage [V] | 1.7 - 2.0 |
|---|---|
| I²C Bus | 1.8V |
| Programmable | Gain, integration time, interrupt |
| Integrated Capabilities | |
| Recommended Operating Distances | |
| Temperature Range [°C] | -30 to 85 |
| Package | OLGA, pin count 8 |
| Remark |
General description
The TMD3725 features advanced proximity measurement, color sense (RGBC+IR), and digital ambient light sensing (ALS). The package has been designed to accommodate a “single hole” aperture approach. The slim 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 color photodiodes have UV and IR blocking filters and converts photodiode current into dedicated integrating data converters producing 16-bit data. This digital output can be interfaced with a microprocessor where illuminance and color temperature can be calculated to control a displays backlight and chromaticity.
This product suits for the following applications:
- Display backlight control
- Color temperature sensing to assist backlight, camera, and flash control
- Ambient light sensing
- Single hole proximity sensing
Resources
| Type | Description | Language | ||
|---|---|---|---|---|
| Application Data | EVM documentation v1_5 | English |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | Document version 2-00 | English | ||
| Application Note | Lux and CCT Calculations (DN 40) | English | ||
| Application Note | Compensating for Light Flicker on Optical Sensors (DN 22) | English | ||
| Application Note | Improving Color Sensor Lux Accuracy | 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 | ||
| Application Note | Optical Force Sensing - design considerations | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Material Declaration Form | MDF_503020008_TMD37253S | English | ||
| Material Declaration Form | MDF_503020052_TMD37253SH245V | English | ||
| Material Declaration Form | MDF_503020046_TMD37253H235V | English | ||
| Material Declaration Form | MDF_503020046_TMD37253SH235V | English | ||
| Material Declaration Form | MDF_503020008_TMD37253 | English | ||
| Material Declaration Form | MDF_503020008_TMD37253M | English | ||
| Material Declaration Form | MDF_503020008_TMD37253SH245V-SMP | English | ||
| Material Declaration Form | MDF_503020015_TMD37253SH210V | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | TMD3725 Block Diagram | English |
