TSL25721 Ambient Light Sensor
Light-to-digital converter with Vdd I2C interface
Features
- Patented dual-diode architecture
- 8M:1 dynamic range
- Programmable interrupt function
- UV-rejection package
- Area efficient 2mm x 2mm Dual Flat no-lead (FN) package
Benefits
- Enables operation in IR light environments
- Enables dark room to 60K lux sunlight operation
- Reduces microprocessor interrupt overhead
- Improves lux accuracy across various light sources
- Reduces board space requirements while simplifying designs
Product parameters
| Supply Voltage [V] | 2.4 - 3.6 |
|---|---|
| Interface | I2C - VDD |
| Programmable | Gain, integration time, interrupt |
| Max. Lux | 10000 |
| Temperature Range [°C] | -30 to 70 |
| Package | FN (6-Pin) |
| Remark |
General description
TSL2572 device family provides ambient light sensing (ALS) that approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. Accurate ALS measurements are the result of TAOS’ patented dual-diode technology and the UV rejection filter incorporated in the package. The operating range can be extended to 60000 LUX when the low-gain mode is use. The TSL2572 device is particularly useful for enabling automatic brightness control (ABC) in large LCD flat-panel TVs and displays by providing optimum viewing in diverse lighting conditions (daytime versus nighttime viewing) while significantly reducing energy consumption to meet the stringent ENERGY STAR requirements.
This product suits for the following applications:
- Display backlight control
- Keyboard illumination control
- Solid state and general lighting control
- Printer paper detection
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| TSL2572EvalKit | Application Board | Evaluation Kit for TSL2572 |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | TSL2572 Datasheet Version 2-00 | English | ||
| Application Note | TSL258x: Accurate ADC Readings after Enable (DN42) | English | ||
| Application Note | Optical Window Design (DN13B) | English | ||
| Application Note | Custom Lux Equation (DN28) | English | ||
| Application Note | Ambient Light Sensing (DN26) | English | ||
| Application Note | Auto-gain Algorithm (DN39) | English | ||
| Application Note | Using the Lux Equation (DN29A) | English | ||
| Application Note | Sensitivity to Temperature (DN24) | English | ||
| Application Note | Sensitivity to Wavelength (DN23) | English | ||
| Application Note | Radiometric and Photometric Measurements (DN21) | English | ||
| Application Note | Improving Color Sensor Lux Accuracy | English | ||
| Application Note | Colorimetry Tutorial (DN 20) | English | ||
| Application Note | Basic Pre-Production Light & Color Sensor Solution Validation Process | English |
Environmental documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Material Declaration Form | MDF_300170029_DK_TSL25721 | English | ||
| RoHS Certificate | RoHS Certificate TSL2572 | English |
Notifications
| Type | Description | Language | ||
|---|---|---|---|---|
| Product Change Notification | PCN42-2020 (issued 2020-Aug) | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | TSL2572 Block Diagram | English | ||
| Factsheet | Ambient Light Sensors | English |
Related boards
Evaluation Kit for TSL2572
TSL2572EvalKit
The TSL2572 evaluation kit comes with everything needed to evaluate the TSL2572 Ambient Light sensor. The evaluation kit comprises of a main controller board with a PIC microcontroller, an industry standard USB 2.0 interface (with a USB cable), a TSL2572 daughter card, "plug-n-play" USB HID class drivers, software documentation, and GUI software allowing users to control the ALS sensor settings as the PIC takes the TSL2572 I2C digital outputs to calculate ALS illuminance in lux approximating the human eye response.