• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 31 subscribers
  • Views 684 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

HDC1080: HDC1080 in high humidity environment.

Hank Zhang
Expert 2040 points
Part Number: HDC1080

Question 1：Our application is more special, may be long time exposed to high humidity environment, HDC1080 deviation of 15% is too high, if there are other IC or any solution to solve the problem of the high humidity environment

Question 2：If the IC accuracy can be deviated by exposure to high humidity, how long the IC can achieve normal accuracy after the normal humidity is restored.

  • 0
    TI__Genius 11750 points

    Hi Hank,

    The Table listed displays the offset typically seen when both conditions (85C/85%) are imposed on the HDC1080.  Therefore the above is only experienced when the device is exposed to high temperature and high humidity.  Can you give more insight into your application?  I can take this message offline if you are comfortable giving me the specifics through message.

    Best Regards,

    Matt

  • 0 in reply to Matthew Sauceda
    Expert 2040 points
    Hi Matt
    My product is the temperature and humidity sensor, which is applied to the power transmission equipment. The whole product may be installed in the gutter, so I want to know whether the HDC1080 can adapt to the high temperature and humidity environment.

    Email:hank.zhang@wpi-group.com
  • 0 in reply to Hank Zhang
    TI__Genius 11750 points

    Hi Hank,

    As the table posted above states, there will be some offset when operating at extreme conditions 85C/85%.  Additionally, page (11) of the datasheet specifies that the "recommended humidity operating range is 10% to 70%RH.  Prolonged operation outside this range may result in a measurement offset.  The measurement offset will decrease after operating the sensor in this recommended operating range."

    There are also special handling criteria for HDC devices.  I recommend that you review the following literature in terms of handling and layout practices.

    Optimize placement and routing: http://www.ti.com/lit/an/snaa297a/snaa297a.pdf

    Storage and handling: http://www.ti.com/lit/an/snia025/snia025.pdf

    Best Regards,

    Matt