TSL2540 Ambient Light Sensor
Light-to-Digital Converter with I²C interface
特点
- Integrated on-chip photopic filter
- High Sensitivity down to mLux levels
- 0.18µm process technology with 1.8V I²C
- 1M:1 dynamic range
- Automatic AUTO Zero/Dark Count control
优势
- Provides near photopic responsiveness
- Design flexibility for dark glass and placement
- Reduces power consumption
- Enables dark room to sunlight operation
- Eliminates system electrical background noise
产品参数
Interface | I²C - 1.8 |
---|---|
Supply Voltage [V] | 1.7 - 2.0 |
Programmable | Gain, Integration time, Interrupt |
Max. Lux [lux] | 20000 |
Temperature Range [°C] | -30 to 85 |
Package | QFN (10-Pin) |
Remark |

综述
The TSL2540 is a very-high sensitivity light-to-digital converter that approximates the human eye response to light intensity under varying lighting conditions and transforms this light intensity to a digital signal output capable through a 1.8V I²C interface. The ALS sensor features 2 output channels, a visible channel and an IR channel. The visible channel has a photodiode with a photopic Interferometric UV and IR blocking filter and the IR channel has a photodiode with an IR pass filter. Each channel has a dedicated integrating data converter which converts photodiode current into a 16-bit digital output. This digital output can be interfaced with a microprocessor where illuminance in lux is derived to accurately measure ambient light to control a displays backlight.

本产品适用于以下应用:
- Home assistants
- Smartwatch wearables
- Display backlight control
- Tablets
- Smartphones
- Medical diagnostics

工具
标题 | 分类 | 主标题 | 购买 |
---|---|---|---|
Evaluation Kit for TSL2540 | Application Board | Evaluation Kit for TSL2540 |
资源
类别 | 描述 | 语言 | ||
---|---|---|---|---|
Application Data | EVM documentation v1_0 | English |
技术文档
类别 | 描述 | 语言 | ||
---|---|---|---|---|
Datasheet | TSL2540 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 |
环境文档
类别 | 描述 | 语言 | ||
---|---|---|---|---|
Material Declaration Form | MDF_503020050_TSL25403M | English | ||
Material Declaration Form | MDF_503020050_TSL25403 | English | ||
RoHS Certificate | RoHS Certificate TSL2540 | English |
其他信息
类别 | 描述 | 语言 | ||
---|---|---|---|---|
Block Diagram | TSL2540 Block Diagram | English | ||
Factsheet | Light-to-Digital Device Family | English |