Current wave in system OFF

[Pepam]

Hello,

I am testing current consumption of my custom board with PPK. There are some passive components (resistors, mlcc) on the board also with active components (accel, adc, gyro, dcdc conv.), which I put to sleep before going to system OFF. System OFF current of my board should be < 17uA theoretically. I am able to achieve this number, but about 15s after nRF52832 entered system OFF. It looks like some gpio capacitance, or some mlcc on board? Did someone encountered similar problem? I have added .ppk file with this behauviour. 

Thank you,

Pepam

ppk_log.zip

[usmanmehmood55]

Pepam  are you turning off the active components before going into System OFF mode? This waveform could be there due to any number of reasons including charging and discharging of capacitors. Perhaps you could provide more information about the circuit itself? 

[Pepam]

Hi, yes, all active components are turned off before going to system OFF.