nRF54L15DK System_OFF and System_ON with RAM retained current measurement

[Muhammed]

As per nRF54L15 datasheet, system_off current at 3V VDD is 0.8uA. I am getting negative average current when i measuring System_OFF current consumption of nRF54L15 using nRF54L15DK board (VDD=3V) as below.

But when configure vdd=1.8V using nRF board configurator i'm getting ~0.9uA. 

Application : ncs\v3.1.1\zephyr\samples\boards\nordic\system_off

modified the application by adding CONFIG_APP_USE_RETAINED_MEM=n  in prj.conf .

i have followed the current measurement application notes.

Could you please help me with this? is there any configuration i missed?

[Simonr]

Hi

Do you still see the negative current when disabling the VCOMs and debugger as well? If so we need to look at other reasons for this, but I assume this is due to the device being backported by the VCOM or debugger.

Best regards,

Simon

[Muhammed]

Hi Simon,
Yes, we are still observing the negative current at 3.3V even after disabling both the VCOMs and the debugger.

Regards,
Muhammed