RE: Cutoff voltage nrf9160

Tron — Mon, 13 Jan 2020 10:15:33 GMT

Thanks;all I needed 🙂

RE: Cutoff voltage nrf9160

Andreas — Mon, 13 Jan 2020 09:24:35 GMT

Hi,

Not sure I understand correctly what you mean. Operating conditions go down to 3.0V (3.3V for modem), this is the lower end where we have characterized and verified the device and can ensure proper operation. There is likely some margin, but especially the modem should not be used below 3.3V.

There is no automatic warning that/if the supply voltage has dropped below 3.0V other than the mentioned brownout at 2V. You can however issue AT%XVBAT and read the supply voltage manually, and if getting close to 3.3V notify the network that your device is getting low battery. After thatn you should switch off the modem (AT+CFUN=4 or =0).

We are working on adding improve low-voltage warnings in future releases.

Best regards,

Andreas

RE: Cutoff voltage nrf9160

Tron — Mon, 13 Jan 2020 07:50:06 GMT

And continous minimum voltage?

RE: Cutoff voltage nrf9160

Andreas — Mon, 13 Jan 2020 07:37:44 GMT

Hi,

Brown-out reset hits at approximately VDD = 2V.

Best regards,

Andreas