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HDC1080: HDC1080

Rostislav Macík
Prodigy 10 points
Part Number: HDC1080

Tool/software:

Hello dear


I work for a medium-sized company Elkoep.s,r,o on the development of electronic devices for households. We often use your HDC1080 temperature and humidity sensors for products. In the production process, we have a technological procedure where, after soldering the sensor on the PCB, the sensor is regenerated in a temperature chamber. I would like to ask if this operation is suitable and, if so, under what conditions of temperature, humidity and time used. Or don't use any regeneration because it's not necessary. Thank you for your help.  Rosta 

  • 0
    TI__Intellectual 2015 points

    Hi Rosta,

    After solder reflow, it is expected that the sensor will generally output a shift in relative humidity, which will reduce over time as the sensor is exposed to typical indoor ambient conditions. These conditions include 30-40% RH at room temperature during a duration of several days. Following this re-hydration procedure allows the polymer to correctly settle after reflow and return to the calibrated RH accuracy.

    Keep in mind that long exposure outside the recommended operating conditions may temporarily offset the RH output. To maintain the highest accuracy, the recommended humidity operating range is 20 to 80% RH (non-condensing) over 0 to 70°C. Prolonged exposure beyond these ranges, particularly high RH and high temperature, may shift the sensor reading with a slow recovery time. The re-hydration step outlined above should help recover this. 

    Best regards,

    Sakeenah Khan

  • 0 in reply to Sakeenah Khan
    Prodigy 10 points

    Hi
    Sakeenah Khan
    Thank you for the quick and for me satisfactory answer. This is how I will present these conclusions. Thank you and I wish you much success in your work. Rosta

  • 0 in reply to Rostislav Macík
    TI__Intellectual 2015 points

    Hi Rosta,

    I'm glad I could help! Feel free to open another E2E if you have more questions/concerns.

    Sakeenah