Vishay Semiconductor Opto Division
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VEML6070
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VEML6070

Product Overview

The VEML6070 is a UV light sensor belonging to the category of environmental sensors. It is designed to measure the intensity of ultraviolet (UV) radiation and is commonly used in applications such as wearable devices, weather stations, and UV index monitors. The sensor possesses characteristics such as high sensitivity, small package size, low power consumption, and compatibility with various microcontrollers. It is typically available in a small surface-mount package and can be purchased individually or in bulk quantities.

Specifications

  • Measurement Range: 0 - 15 mW/cm²
  • Supply Voltage: 2.7V - 5.5V
  • Interface: I2C
  • Operating Temperature: -40°C to +85°C
  • Package Type: Surface Mount
  • Dimensions: 2.35mm x 1.8mm x 1.0mm

Detailed Pin Configuration

The VEML6070 features a standard 6-pin configuration: 1. VDD (Power supply) 2. GND (Ground) 3. SDA (I2C data line) 4. SCL (I2C clock line) 5. ADDR (I2C address selection) 6. INT (Interrupt output)

Functional Features

  • High Sensitivity: The sensor can accurately detect UV radiation in the environment.
  • Low Power Consumption: It consumes minimal power, making it suitable for battery-powered devices.
  • I2C Interface: The sensor can communicate with microcontrollers using the widely-used I2C protocol.

Advantages and Disadvantages

Advantages

  • Accurate UV Measurement
  • Small Package Size
  • Low Power Consumption
  • I2C Interface for Easy Integration

Disadvantages

  • Limited Measurement Range
  • Susceptible to Interference from Ambient Light

Working Principles

The VEML6070 operates based on the photodiode principle, where incident UV radiation generates an electric current in the photodiode. This current is then converted into a digital UV index value through internal circuitry and made available for reading via the I2C interface.

Detailed Application Field Plans

The VEML6070 finds extensive use in various applications, including: - Wearable UV Monitors: Integrating the sensor into wearable devices to monitor UV exposure levels. - Weather Stations: Incorporating the sensor to measure UV radiation as part of environmental monitoring. - UV Index Monitors: Utilizing the sensor to provide real-time UV index readings for outdoor activities.

Detailed and Complete Alternative Models

Some alternative models to the VEML6070 include: - SI1145: A multi-sensor module that includes UV, ambient light, and proximity sensors. - GUVA-S12SD: A compact UV sensor with analog voltage output.

In conclusion, the VEML6070 UV light sensor offers a compact and efficient solution for measuring UV radiation in various applications. Its high sensitivity and low power consumption make it a valuable component in the development of UV monitoring devices.

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Énumérez 10 questions et réponses courantes liées à l'application de VEML6070 dans les solutions techniques

  1. What is VEML6070?

    • VEML6070 is a digital UV light sensor that measures the intensity of ultraviolet (UV) radiation.

  2. How does VEML6070 work?

    • VEML6070 uses a photodiode to convert UV light into an electrical current, which is then converted into a digital output by an integrated ADC.

  3. What is the measurement range of VEML6070?

    • VEML6070 can measure UV light in the UVA (320-400 nm) range.

  4. How accurate is VEML6070?

    • VEML6070 has a typical accuracy of ±10%.

  5. Can VEML6070 differentiate between UVA and UVB light?

    • No, VEML6070 only measures total UVA radiation and cannot differentiate between UVA and UVB.

  6. What are the typical applications of VEML6070?

    • VEML6070 is commonly used in wearable devices, weather stations, UV index monitors, and UV exposure meters.

  7. Does VEML6070 require calibration?

    • Yes, VEML6070 may require periodic calibration to maintain accuracy.

  8. What is the power consumption of VEML6070?

    • VEML6070 has low power consumption, typically operating at around 240 µA.

  9. Is VEML6070 sensitive to visible light?

    • Yes, VEML6070 is sensitive to both UV and visible light, so it's important to account for ambient light when making measurements.

  10. Can VEML6070 communicate with microcontrollers or other devices?

    • Yes, VEML6070 communicates via I2C interface, making it compatible with a wide range of microcontrollers and other devices.