Power consumption Of Nordic nRF52840

[Parteek Singla]

Hi,

we are using nRF52840 in our project, we also set some configuration like below snapshot

Here it comes 185uA, we want to know what is the overall consumption means 4 peripherals connected with it using I2c communication also what is the consumption in receiving time ?

[Turbo J]

Parteek Singla said:

using I2c communication

Not easy predictable because the I²C slaves can do clock stretching - consuming the full pullup current while doing so.

Parteek Singla said:

what is the consumption in receiving time

Receiving time for what? I²C? BTLE? How much data?

[Parteek Singla]

The receiver means Radio RX, You said Consuming full pull up current so what is the maximum value?

[Simonr]

Hi Parteek

Parteek Singla said:

You said Consuming full pull up current so what is the maximum value?

 I'm sorry, but I don't understand what you mean by this. By hovering the Radio RX column in the Online Power Profiler you will get to see details of how long the event is, and how much power that event consumes.

Best regards,

Simon

[Parteek Singla]

Hi simon,

I want to know the power consumption of nRF52840 like When BLE transmits Packet, when receiving packets, when I2C line is connected with four slaves (operating on 1.8V)

[Simonr]

Hi

Well, the Radio TX and RX columns show the power consumption when transmitting and receiving while advertising. You can also see the current consumption for when the chip is in a connection, both as a central and peripheral in the Online Power Profiler. As for the current consumption of the I2C, it is not very predictable as Turbo J said initially, and it depends on how often they'll be active and not, etc.

Best regards,

Simon