Low Power consumption for nRF52 series of devices

[ujur007]

I was looking for different power options for nRF52/53 series of devices and possible want more information on how to reduce power such that device can run for months on a battery.

There was one interesting thread which discuss this for nRF51 series of devices. But that one is quite old (over 9 years now). So can someone from Nordic guide on this how to reduce power consumption of the device and individual blocks of SoC?

https://devzone.nordicsemi.com/f/nordic-q-a/1657/how-to-minimize-current-consumption-for-ble-application-on-nrf51822

Note: I have selected some tags to address topic for power consumption discussion.

[Jared]

Hi,

Many of the options discussed in that thread is also relevant for the nRF52 and nRF53 series. In addition we have this blog post for the nRF52 which should be a good read for this topic, and this for the nRF53 and nRF52.

regards

Jared

[ujur007]

Hi, 

Thanks for posting.

One more question is how much minumum current can be achieved for BLE device advertising itself? My research shows that in the range of arround ~10uA.

Is that correct?

Right now I can measure current on nRF52840-DK of arround ~100uAmps. With this the device can run on a battery such as CR2032 for arround ~60 days. Is that reliable?

[Jared]

Hi,

It depends on several factors such as how your board is configured (DC-DC vs LDO) etc. But you can use the online power profiler tool for BLE to estimate what current you'll get with your connection parameters and configuration,

regards

Jared 

[ujur007]

Thanks ,Jared, That is useful.