the chip’s Current consumption is not expected

[victor_CHINA]

chip：52832

sdk：12.3     ble_app_template

when I measure the sleep current consumption use the nordic PPK

I found there is a 30ua peak in every 20ms，could you please tell me why？

thanks

[victor_CHINA]

Any body can answer me？

thanks in andvance！

[Stian Røed Hafskjold]

Hi, these are probably refresh mode spikes. This is how the regulator is designed.

https://devzone.nordicsemi.com/f/nordic-q-a/17370/auto-controlled-refresh-mode

https://devzone.nordicsemi.com/f/nordic-q-a/14210/current-spikes-when-dcdc-is-on/54282#54282

[victor_CHINA]

Hi Stian ,

thanks for your answer！

Does  that mean the  scenarios is normal?

But the chip's average current consumption is 2.8ua，Is it too high？

thanks and regards

Victor

[victor_CHINA]

Hi Stian,

Could you please answer me ?

thank you !

[Stian Røed Hafskjold]

Hi, yes this is normal. 2.8uA is also normal. The PPK is not very accurate so I suspect that the current is even lower, closer to 2 uA.