https://devzone.nordicsemi.com/f/nordic-q-a/7880/current-2-2ma-when-sleep-what-t-wrongHi,all.i call function &quot;sd_clock_hfclk_release(); power_manage();&quot; and want my device to sleep.as this,my device&#39;s current is 2.2mA.what&#39;s wrong ?Can someone help me?en-USTelligent Community 13Mon, 29 Jun 2015 08:10:12 GMThttps://devzone.nordicsemi.com/thread/28124?ContentTypeID=1Mon, 29 Jun 2015 08:10:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e67af482-663a-4329-8175-ce5ce1a98045wuvo.leo<p>Yes,i enabled UART for DTM,enabled PWM(used timer 2).i initialize these peripheral and then sleep. need to disable them before sleep?Thanks a lot !</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/28123?ContentTypeID=1Mon, 29 Jun 2015 05:53:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6c0bc070-2669-4316-b442-694f0cc6c2ecKrzysztof Chruscinski<p>Ensure that you don&#39;t have any peripheral enabled like enabled RX in UART, TIMER enabled, GPIOTE task/event enabled etc. any peripheral that requires HF clock will prevent system from shutting it down.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/28122?ContentTypeID=1Mon, 29 Jun 2015 02:44:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:30b3bb08-7dc5-4d0a-8e46-561e868e91eckarlkim<p>I guess.</p> <ol> <li> <p>Be careful circuit design When the voltage divider or to supply power to the resistor, the current consumed naturally.</p> </li> <li> <p>You can wake up unwanted. There also may be waking from Sleep Mode by LPC.</p> </li> </ol> <p>I hope solved well.</p><div style="clear:both;"></div>