What is the most power that the nrf52 can consume during bluetooth operation?

[worldsnexthero]

Hi,

Need to know the largest amount of power consumption that the Nordic (nrf52) can consume during the highest power bluetooth mode?

Also, what is the largest power consumption of nrf52 at any other state (other than bluetooth)?

Thanks

[Øyvind Karlsen]

Hi,

Have a look at the electrical specification for the radio. Here you can find that the current consumption at 3 V with DCDC enabled is 7.5 mA with an output power of 4dBm. This is the current drawn when the radio is transmitting.

The largest power consumption that you will otherwise see will depend highly on which features you have enabled, and what external circuitry you are using. For example the CPU core will draw 52µA/MHz while active. In order to get a good estimate of the total energy consumption you will need to know:

• How often the radio will be active, data rate and intervals between packets
• How much transmit power the radio needs
• How much current will be drawn in the radio idle state, this is a sum of peripherals and CPU activity

In order to get these numbers, please consult the Objective Product Specification at the infocenter.

Best regards,

Øyvind