how much current consumption nRF52 in sleep mode and RTC on?

RE: how much current consumption nRF52 in sleep mode and RTC on?

bjorn-spockeli — Mon, 31 Oct 2016 06:58:07 GMT

The LF crystal oscillator uses less current than the RC. You can see the run current for the LFXO and LFRC on this Infocenter page.

RE: how much current consumption nRF52 in sleep mode and RTC on?

butch — Sun, 30 Oct 2016 16:33:37 GMT

The BMD300 doesn't have a 32khz crystal LFRC oscillator, but uses an RC oscillator which uses more power. and is less accurate. If you have added your own crystal oscillator, is it a low power design?

RE: how much current consumption nRF52 in sleep mode and RTC on?

Ankush — Sat, 02 Jul 2016 07:17:19 GMT

Hi,

I Have just seen this post.I am using NRf52 in system ON sleep mode(__WFE();__SEV();__WFE();) and RTC using BMD300 Rigado evaluation kit. Here i am getting current consumption of 12.9uA. Can you suggest me why this large current consumption?

RE: how much current consumption nRF52 in sleep mode and RTC on?

bjorn-spockeli — Mon, 04 Jan 2016 08:47:06 GMT

If this answered your question I would appreciate if you could accept the answer and mark it as correct.

RE: how much current consumption nRF52 in sleep mode and RTC on?

bjorn-spockeli — Fri, 18 Dec 2015 14:47:42 GMT

According to the nRF52832 Product Specification, the chip will have the following current consumption:

System ON, no RAM retention + RTC + LFRC = 1.2uA + 0.1uA + 0.6uA = 1.9uA

If need RAM to be retained in System On mode you have to add an additional 20nA per 4kB RAM block that is used.