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HDC2010: Design Requirement: HDC2010 must be positioned away from heat sources on the PCB

Hong Tay
Expert 2465 points
Part Number: HDC2010

Dear Sir, Madam,

As design requirement stated in datasheet, as below.

"In order to correctly sense the ambient temperature and humidity, the HDC2010 must be positioned away from heat sources on the PCB. It must not be close to the LCD and battery."

Can HDC2010 be placed on the same board as MCU? If yes, what is the safety distance between HDC2010 and MCU?

Thank you very much.

  • 0
    TI__Expert 5695 points
    Hi Hong,
    The HDC2010 sensor can be placed on the same board as the MCU and other components. The techniques for good thermal isolation are keep a safe distance and also isolate the sensor using some layout techniques. Please refer to the following app notes for a detailed description and good examples.

    1. Optimizing Placement and Routing for Humidity Sensors (Rev. A) --> www.ti.com/.../snaa297
    2. Temperature Sensors: PCB Guidelines for Surface Mount Devices --> www.ti.com/.../snoa967.pdf

    Regards,
    Jose