BME688 power consumption

[Burkaugurk]

I am running the BME688 in FORCED mode, ULP mode and these are my power consumption measurements: 

As you can see is the average power consumption far too high then it should be. When I disconnect the BME688 my Thunderboard EFR32BG22 uses 2.67 microAmpere. Could someone help me with this. 

[Burkaugurk]

No one that can help me? 

[kmca]

I did some work on the 688 in ULP mode connected to a Raspberry PI4 which draws between 2.6w and 3.1w bouncing up and down every 4 to 5 sec (includes an ssh login). Placing an ammeter (on the 25 mA scale) in the power line between the PI and the BME688 (I2C) then running a parallel mode python script (300sec), the meter flicks up to 13mA every 5 min and sits at zero mA the rest of the time.

Hope this helps

Keith

The BoschSensortec spec suggests an average of <0.1 mA but as your test shows ULP is very spikey.

[BSTRobin]

Hi Burkaugurk,

Thank for your inquiry.
The average power consumption of BME688 in reference ULP mode is less than 1mA.

If your hardware can support measuring only the power consumption of BME688, we recommend that you test the power consumption of BME688 separately, rather than the power consumption of the entire machine.