What is the total current consumed for nRF9160 complete breakup for both rails"?, SIM-card, GPS, MCU or some sensor that is enabled by default

[ravi82]

Hi, 

We are using nRF9160  for our application and need to design power supply with battery management IC for it and need to know how much power it will consume with all operation working together 

[Håkon Alseth]

Hi,

 

We are using nRF9160  for our application and need to design power supply with battery management IC for it and need to know how much power it will consume with all operation working together 

The compounded current consumption of the device will heavily depend on your usage of it. The nRF9160 itself will have the highest current consumption when the modem is active with 23 dBm output power, where the peak is specified here:

https://infocenter.nordicsemi.com/topic/ps_nrf9160/_tmp/alta.nRF9160/autodita/CURRENT/parameters.id_current_modem.html?cp=2_0_0_4_1_0_13

 

Modem and GPS cannot overlap each other in terms of current consumption, as they cannot operate exactly at the same time. GPS is scheduled in-between LTE/NB1 frames.

 

Kind regards,

Håkon

[ravi82]

Thanks for the reply. Can u confirm that all the mentioned power consumption is on the VDD pins.(i.e. VDD1+ VDD2).

Is this at 3.7V nominal voltage? or at 3.0V ?

[Håkon Alseth]

Hi,

 

The voltage on VDD is described in the parameter, for instance this:

TX subframe, Pout >20 dBm, Ant VSWR3, Vbat 3.0 V, Temp 85 °C

 

unspecified descriptions inherits the conditions here:

https://infocenter.nordicsemi.com/topic/ps_nrf9160/chapters/current_consumption/doc/frontpage.html?cp=2_0_0_4_1

 

VDD_IO is on its own net, and the consumption of GPIOs will heavily depend on your application and how much is sinked/sourced through GPIOs.

 

Kind regards,

Håkon