Vishay Semiconductor Opto Division
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VEML6075
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VEML6075

Product Overview

The VEML6075 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 monitoring systems. The sensor is known for its compact size, low power consumption, and high sensitivity to UVA and UVB radiation. It is typically packaged in a small surface-mount package and is available in various quantities to suit different production needs.

Specifications

  • Operating Voltage: 2.7V to 3.6V
  • Interface: I2C
  • UVA Sensitivity: 365nm
  • UVB Sensitivity: 330nm
  • Dynamic Range: 0 to 8383 W/cm²
  • Package Type: Surface Mount
  • Package Quantity: Varies

Detailed Pin Configuration

The VEML6075 sensor has a total of six pins: 1. VDD - Power supply input 2. GND - Ground connection 3. SDA - I2C data line 4. SCL - I2C clock line 5. INT - Interrupt output 6. ADDR - I2C address selection

Functional Features

  • High UVA and UVB sensitivity
  • I2C interface for easy integration with microcontrollers
  • Low power consumption
  • Wide dynamic range for accurate UV measurement
  • Interrupt feature for threshold detection

Advantages and Disadvantages

Advantages

  • Small form factor
  • High sensitivity to UVA and UVB radiation
  • Low power consumption
  • Wide dynamic range

Disadvantages

  • Requires external calibration for precise measurements
  • Susceptible to interference from ambient light sources

Working Principles

The VEML6075 operates based on the photodiode principle, where UVA and UVB radiation incident on the sensor generates a photocurrent proportional to the light intensity. This photocurrent is then converted into a digital UV index value using an internal ADC and is made available to the host microcontroller via the I2C interface.

Detailed Application Field Plans

The VEML6075 sensor finds extensive use in various applications, including: - Wearable devices for UV exposure monitoring - Weather stations for measuring UV radiation levels - UV index monitoring systems for public safety and health awareness

Detailed and Complete Alternative Models

Some alternative models to the VEML6075 sensor include: - SI1145 UV Index Sensor - GUVA-S12SD UV Sensor Module - ML8511 UV Sensor Breakout

In conclusion, the VEML6075 UV light sensor offers a compact and efficient solution for measuring UV radiation in a wide range of applications, despite its need for external calibration and susceptibility to ambient light interference.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem VEML6075 w rozwiązaniach technicznych

  1. What is VEML6075?

    • VEML6075 is a digital UV sensor that measures UVA and UVB light intensity.

  2. How does VEML6075 work?

    • VEML6075 uses photodiodes to convert UV light into an electrical current, which is then converted into a digital output.

  3. What are the typical applications of VEML6075?

    • VEML6075 is commonly used in wearable devices, weather stations, UV index monitors, and UV exposure measurement devices.

  4. How accurate is VEML6075 in measuring UV light?

    • VEML6075 has high accuracy and reliability in measuring UVA and UVB light intensity.

  5. Can VEML6075 be used outdoors?

    • Yes, VEML6075 can be used outdoors to measure UV light exposure.

  6. Is VEML6075 sensitive to other types of light?

    • VEML6075 is specifically designed to be sensitive to UVA and UVB light and has minimal sensitivity to visible and infrared light.

  7. What is the operating voltage range for VEML6075?

    • The operating voltage range for VEML6075 is typically between 2.7V and 3.6V.

  8. Does VEML6075 require calibration?

    • VEML6075 is factory-calibrated and typically does not require additional calibration.

  9. Can VEML6075 communicate with microcontrollers or other devices?

    • Yes, VEML6075 has an I2C interface for communication with microcontrollers and other devices.

  10. Are there any special considerations for integrating VEML6075 into a technical solution?

    • It's important to protect VEML6075 from direct exposure to water and to consider the placement for optimal UV light measurement.