ams TSL2540 Ambient Light Sensor

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描述

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.

详情

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

Function
ambient light sensing
电源电压
典型值
1.8 V
最小值
1.7 V
最大值
1.98 V
接口
输入
I²C slave (400kHz)
输出
I²C slave (400kHz)
工作环境温度
最小值
-30 °C
最大值
85 °C
Integrated diffuser
No
封装
QFN
封装尺寸
l 典型值
2.0 mm
w 典型值
2.0 mm
h 典型值
0.5 mm
Input/Output Voltage
1.8 V

订单代码

产品类别 描述 单号 可行
TSL25403M
TSL25403

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产品规格书

Datasheet

应用说明

技术文档

环境文档

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