https://devzone.nordicsemi.com/f/nordic-q-a/77121/nrf52840-auto-refresh-mode-rateDuring the System On mode and System off mode, I see a spike in current of 400 uA with frequency of around 8Hz. Is it due to the refresh mode or is this different. Could anyone please tell me the refresh mode frequency rate and the current consumed duringen-USTelligent Community 13Tue, 06 Jul 2021 11:24:08 GMThttps://devzone.nordicsemi.com/thread/318762?ContentTypeID=1Tue, 06 Jul 2021 11:24:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:51a9f65a-96cb-4345-a332-c1359dca8a5bStian R&#248;ed Hafskjold<p>Hi</p> <p>Yes, this looks like refresh mode. The frequency depends on the current being drawn on the regulator output. In system OFF mode the refresh interval is at 100-150 ms, and in system ON idle mode it&#39;s at 30-50 ms, typically.</p> <p>The current consumed during refresh mode is documented here: <a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/_tmp/nrf52840/autodita/CURRENT/parameters.i_sleep.html?cp=4_0_0_4_1_0_0">https://infocenter.nordicsemi.com/topic/ps_nrf52840/_tmp/nrf52840/autodita/CURRENT/parameters.i_sleep.html?cp=4_0_0_4_1_0_0</a></p> <p>Note that the numbers in the PS are typical numbers only, and there will be device to device variations.</p><div style="clear:both;"></div>