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HDC2010: Some question between HDC2010/2080

Part Number: HDC2010
Other Parts Discussed in Thread: HDC2080

Hi Sirs,

Sorry to bother you.

We have some questions between HDC2010/2080, could you help check it?

Thanks!!

  1. What is difference between HDC2010 and HDC2080?
  2. HDC2010/2080 is the most power saving temp/humidity sensor TI has?
  3. Any special operation modes to support power saving for battery-powered sensors?
  4. What is the response time for each measurement?
    can we cut off power of HDC2010/2080 between measurements for power saving?
  5. This sensor will be used for temp/humidity measurement under -30~50’C.
    any issues will happen on sensor measurement if the water/moisture is frozen on sensor? Any solution to prevent this?

Thanks!!

  • Hi Shu-Cheng LIN,

    Most if this information can be found in the respective datasheet for the HDC2010 and HDC2080 devices, which I've listed in the answers to your questions below.

    1. What is difference between HDC2010 and HDC2080? The HDC2010 is a WCSP package with the sensor on the bottom of the device, while the HDC2080 is a WSON package with the sensor on top of the package.
    2. HDC2010/2080 is the most power saving temp/humidity sensor TI has? Both devices are comparable when it comes to current consumption during operation, with a typical 0.55uA @ 1 sample / sec 
    3. Any special operation modes to support power saving for battery-powered sensors? The Sample Rate is configurable, which would impact power.  Additionally, you can opt to perform manual conversions.
    4. What is the response time for each measurement? This information is included on page 5 (HDC2080), with a typical value of 8s.
      can we cut off power of HDC2010/2080 between measurements for power saving? Power cycling the device will affect the register settings that would be programmed during initialization.  You would need to reprogram register settings if the device is powered off.
    5. This sensor will be used for temp/humidity measurement under -30~50’C.
      any issues will happen on sensor measurement if the water/moisture is frozen on sensor? Any solution to prevent this? The HDC2080 datasheet specifies that the recommended operation conditions specify a temperature range of -20C to 70C, this is shown in page 4 of the data sheet.  Water accumulated on the sensor may affect the reading, therefore the internal heater may be use to prevent this condensation from occurring on the exposed polymer.

    Best Regards,

    Matt

  • Hello Sirs,

    HDC2080 Temperature Range:

    • Operating: –40°C to 85°C
    • Functional: –40°C to 125°C   

    I confuse this spec with Trh -20~ +70 degree C , Can HDC2080 work in -40~+85 degree C ?

    If no, any solution could meet this temperature range ?

    Many thanks !