nRF52832 current consumption in System OFF / No RAM retention / Wake on LPCOMP mode

RE: nRF52832 current consumption in System OFF / No RAM retention / Wake on LPCOMP mode

Stian Røed Hafskjold — Fri, 17 Apr 2020 08:25:56 GMT

I did some measurements on 840, 833 and 832. In the case of 840 and 833 the PS seems to be correct, except that I measured lower 'system OFF wake on reset' current on 833. I got 0.3 uA, not 0.6 uA.

1.9 uA for 832 'system OFF wake on LPCOMP' is too much. I measured 0.7 uA. I will report this internally.

I just want to add that the numbers in the PS are typical values. i.e. the average over a large set of samples. There will be device to device variations, so if you measure only one sample you will most likely not get the same result as in the PS.

RE: nRF52832 current consumption in System OFF / No RAM retention / Wake on LPCOMP mode

Akash Patel — Thu, 16 Apr 2020 20:43:38 GMT

Hi Stian,

Were you able to measure this current? In the 832 PS, it says 1.9 uA.

In the 840 PS it is only 0.86 uA and in the 833 PS it is only 0.9 uA.

Regards,

Akash Patel

RE: nRF52832 current consumption in System OFF / No RAM retention / Wake on LPCOMP mode

Jay Yoo — Fri, 08 Nov 2019 19:22:36 GMT

Stian, thanks for the quick response. Look forward to hearing the result from you.

RE: nRF52832 current consumption in System OFF / No RAM retention / Wake on LPCOMP mode

Stian Røed Hafskjold — Fri, 08 Nov 2019 12:37:22 GMT

I have a feeling that the 1.9uA in the PS is wrong. I'm pretty sure that 0.4uA is correct. I will try and measure it here.