Current Consumption - System OFF, no RAM, Normal Voltage Mode, Wake up on GPIO or USB detect (VBUS)

[barghini]

I'm trying to model up current consumption of our system.  I'm looking to put the nRF52840 into System OFF, no RAM, Normal voltage mode and waking up on both GPIO and USB Detect (VBUS).  I didn't see either scenarios in the latest v1.0 spec sheet.  I'd sure appreciate some help finding out what current consumption I should expect.  

I'll I could dig up was a post referring to another nRF52 device showing that System OFF, no RAM wake up on GPIO is the same as a wake up on reset. 

What I'm looking for is expected current consumption of

1. System OFF, no RAM, normal voltage mode, wake up on GPIO

2. System OFF, no RAM, normal voltage mode, wake up on GPIO or USB Detect

Thank you.

[haakonsh]

Hey Barghini,

Those scenarios have not been measured yet, but I doubt that (1) will have much more than IOFF_RAMOFF_RESET, according to Sleep. I'm expecting the USBD to draw 1-4 µA extra if used as a wake-up source. 

Cheers,

Håkon.