Power profile in System ON: with SoftDevice vs without

[Jonas S]

Hello,

I am using custom hardware with an nRF52810 chip, connecting it to P16 connector of the power profiler kit.
I use the power profile kit to check power consumption when going to the system ON state after startup.

If I do not use the softdevice and sleep using:

__WFE();
__SEV();
__WFE();

I get the following power profile:

If I enable the softdevice, by using nrf_sdh_enable_request(), nrf_pwr_mgmt_init() and sleep using:

sd_clock_hfclk_release();
nrf_pwr_mgmt_run();
sd_clock_hfclk_request();

I get the following power profile:

It is the third part of this graph that I do not understand. There is 25 ms where something is still on, after which it apparently stops.

Is this easily explained or am I doing something wrong?

Kind regards,

Jonas