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

[Martijn]

It completely depends on which peripherals you have enabled. For every peripheral the power consumption is described in the product specification.

[worldsnexthero]

I'm assuming bluetooth tx and rx connection for the highest power mode. I don't find clear numbers for this operation in the manual...

[xtting]

the most current used for RF module is 10+mA and 0db. But the RF is not continiously work, it's work durty time is depend on the transmit interval-time, the payload for each package, the latency, etc. which are definded by your code.

And you need to meter what the peripherls's current by your self, and shut off them when necessary.

[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