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Visitor II
June 19, 2020
Solved

LPS25HBT boundary conditions for to design the cover

  • June 19, 2020
  • 2 replies
  • 918 views

Hi, for a project, I have designed a PCB with the component LPS25HBT. We want to know if there are some technical recommendations about the sensor's boundary conditions.

Will we have to design the cover with some distance between the sensor and the boundary? Some distance or relative distance between the sensor and the cover?

If the PCB is embedded in resin must have a minimum distance between the sensor and the resin.

Thanks in advance!

    This topic has been closed for replies.
    Best answer by Eleon BORLINI

    Hi @MRuiz.2​ , I suggest you to check the AN4672 application note for the LPS25HB, that describes the hardware guidelines for system integration, especially in the 2.2 Sensor embodiment and housing section, from p.13 on. In particular, the below-reported figure 14 outlines that an aperture of 0.5 mm provides a good response time and an excellent level of integration for Pressure Device application.

    0693W000001rDvUQAU.png

    Regards

    2 replies

    ST Employee
    June 22, 2020

    Hi @MRuiz.2​ , I suggest you to check the AN4672 application note for the LPS25HB, that describes the hardware guidelines for system integration, especially in the 2.2 Sensor embodiment and housing section, from p.13 on. In particular, the below-reported figure 14 outlines that an aperture of 0.5 mm provides a good response time and an excellent level of integration for Pressure Device application.

    0693W000001rDvUQAU.png

    Regards

    MRuiz.2Author
    Visitor II
    June 23, 2020

    Hi Eleon

    I really appreciate this information! That is what im looking for.

    Kind regards