What is the current consumption, in long range 125k radio ＋４dB mode for nrf52811

[Jack_Yang]

Hi，

   Now I use Nrf52811 to develop a product. I use the 125k long range radio + 4dB mode.

I read through its specifications and found no corresponding current consumption.

I want to know what is the current consumption in this mode?

Because my product will soon enter the batch trial production stage, can you tell me this certain parameter? 

 

[Marjeris Romero]

Hi,

The nRF52811 Product Specification has the current consumption numbers for the radio transmitting @4dBm output power at 1 Mbps and sleep current.

The modulation will not influence the active current in TX, just the length of the packet and hence how much charge is used in total in a BLE event. The total average current will be higher when the packet is longer, but the idle current stays the same.

See for example the changes in current consumption for other chips when using different PHY in the online power profiler: https://devzone.nordicsemi.com/nordic/power/

The nRF52811 PS can be found here (see chapter 5.2 for Current consumption): https://infocenter.nordicsemi.com/pdf/nRF52811_PS_v1.0.pdf

Best regards,

Marjeris