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 |