Difference between System ON sleep mode and System OFF sleep mode

RE: Difference between System ON sleep mode and System OFF sleep mode

Somesh Burkule — Wed, 19 May 2021 13:27:18 GMT

Hi,

Thanks for reply.

see the link below. point 4 in system
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/optimizing-power-on-nrf52-designs#:~:text=In%20the%20default%20Low%20power,timer%2C%20peripheral%20or%20pin%20interrupts

RE: Difference between System ON sleep mode and System OFF sleep mode

Øyvind — Wed, 19 May 2021 12:57:57 GMT

Can you please link to where you find the Active mode current numbers?

Yes, System ON is a sleep mode, with two sub modes constant latency and low power. When System ON is enabled, only the LF-clock is running while sub mode constant latency will provide a higher current draw with more clocks running (not suitable for battery powered applications). System OFF will provide deep-sleep with no clock sources.

Kind regards,
Øyvind

RE: Difference between System ON sleep mode and System OFF sleep mode

Somesh Burkule — Wed, 19 May 2021 12:13:13 GMT

Awaiting your reply.

RE: Difference between System ON sleep mode and System OFF sleep mode

Somesh Burkule — Thu, 13 May 2021 18:58:33 GMT

Hi Øyvind,

Thank you for your response.
Does that mean System ON constant latency and low power mode are sleep mode and System OFF sleep mode is deep sleep.

How is the Active mode is different than system ON mode? I can see in document Active mode current for nrf52832 with DCDC is 7mA and system ON current is 1.9mA.

Regards,

Somesh Burkule

RE: Difference between System ON sleep mode and System OFF sleep mode

Øyvind — Thu, 13 May 2021 18:50:03 GMT

Hello,

The nRF52832 Product Specification found in our Infocenter has all details.

System ON sleep mode

System OFF sleep mode

Electrical specs

Kind regards,
Øyvind