nrf54L15 power current question,on nordic Official test example bugs

[jhon0]

hello,https://github.com/NordicDeveloperAcademy/nrf54l-express/tree/main/demo_app/ The device draws 150 uA when powered on, and only after pressing button 3 can it properly switch between 1 uA power-off mode and 3 uA idle mode. Similarly, in C:\ncs\v3.2.4\nrf\samples\bluetooth\peripheral_power_profiling, it draws 150 uA when powered on and also requires calling the sys_poweroff function after 5 seconds to properly enter 1 uA mode. Why doesn't it directly enter 3 uA idle mode after power-on? The environment is 54L15 DK, ncs v3.2.4 ppk2. Thank you. PS: The peripheral_power_profiling demo works normally on the 52833 DK, entering 3 uA mode directly upon power-on.

[Edvin]

Hello,

Ok, I tested the Devacademy application now, and it switches between 3 and 1µA when I press button 3. But I guess that is not your question. 

it draws 150 uA when powered on and also requires calling the sys_poweroff function after 5 seconds to properly enter 1 uA mode.

I am not sure about the question. You can call sys_poweroff immediately in the application if you prefer that. It is just a sample showing you how to use the API. 

it draws 150 uA when powered on

I don't see this on my end. Can you please show a screenshot of what you are seeing?

Best regards,

Edvin

[jhon0]

Hello Ediv,

https://github.com/NordicDeveloperAcademy/nrf54l-express/tree/main/demo_app/ 

C:\ncs\v3.2.4\nrf\samples\bluetooth\peripheral_power_profiling

 Current Consumption in nRF54L10 System-on Mode (130µA vs 2.6µA) 

Under normal conditions, the default current consumption after power-up should be 3 µA (without calling sys_poweroff). However, after compiling and downloading these demos, the current consumption is 150 µA, and even after pressing the reset button, it remains 150 µA.

Regarding this example, no code has been modified.

1. The phenomenon occurs on both the nRF54L15 DK (PCA10156 1.0.0) development board and my own custom board.

2. SDK: nRF Connect SDK v3.2.4
   Toolchain: nRF Connect SDK Toolchain v3.2.4
   Board target: nrf54l15dk/nrf54l15/cpuapp

3. PPK2 source meter set to 3000 mV (the nRF54L15 DK is also set to 3000 mV via Board Configurator).

   • PPK2 VOUT → nRF54L15 DK P6 center pin (nRF power)

   • PPK2 VIN → nRF54L15 DK P6 pin closest to USB connector (IDD)

   • PPK2 GND → nRF54L15 DK P6 GND

4. The attached file contains data captured by the PPK2, showing that after power-on or a reset button press, the current is about 150 µA. Only after pressing button 3 once does the current properly enter 3 µA,1ua.

   Best regards

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ppk2-20260519T012712.ppk2