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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 Document version 1-03 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
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