TSL25911 Ambient Light Sensor
Light-to-digital converter with Vdd I2C interface
Features
- Highest sensitivity to 188µLux
- Patented dual-diode architecture
- 600M:1 dynamic range
- Programmable interrupt function
- UV-rejection package
- Area efficient 2mm x 2.4mm Dual Flat no-lead (FN) package
Benefits
- Design flexibility for dark glass and placement
- Enables operation in IR light environments
- Enables dark room to sunlight operation
- Reduces microprocessor interrupt overhead
- Improves lux accuracy across various light sources
Product parameters
| Supply Voltage [V] | 2.7 - 3.6 |
|---|---|
| Interface | I2C - VDD |
| Programmable | Gain, integration time, interrupt |
| Max. Lux | 88000 |
| Temperature Range [°C] | -30 to 70 |
| Package | FN (6-Pin) |
| Remark |
General description
The TSL2591 is a very high sensitivity light-to-digital converter that transforms light intensity into a digital signal output capable of direct I2C interface. The device combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit. Two integrating ADCs convert the photodiode currents into a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The TSL2591 supports a traditional level style interrupt that remains asserted until the firmware clears it.
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 |
|---|---|---|---|
| TSL2591EvalKit | Application Board | Evaluation Kit for TSL2591 |
Technical documents
| Type | Description | Language | ||
|---|---|---|---|---|
| Datasheet | TSL2591 datasheet v3-00 | 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_300150002_TSL25913HFNM | English | ||
| Material Declaration Form | MDF_300150002_TSL25913HFN | English | ||
| Material Declaration Form | MDF_300150002_TSL25911FN | English | ||
| RoHS Certificate | RoHS Certificate TSL2591 | English |
Other information
| Type | Description | Language | ||
|---|---|---|---|---|
| Block Diagram | TSL2591 Block Diagram | English | ||
| Factsheet | Ambient Light Sensors | English |
Related boards
Evaluation Kit for TSL2591
TSL2591EvalKit
The TSL2591 Evaluation Kit comes with everything needed to evaluate the TSL2591 ambient light sensor. The evaluation kit comprises of a main controller board with a PIC microcontroller, an industry standard USB 2.0 interface (with an USB cable), a TSL2591 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 TSL2591 I2C digital outputs to calculate ALS illuminance in lux approximating the human eye response.