What is Maximum current usage for 52832?

[ericalbers]

The product spec is not clear, what is the maximum current draw possible from a 52832?  Please assume ALL features are in use and fully enabled.

Thanks.

[Håkon Alseth]

Hi,

ericalbers said:

Product spec says receiver can need 12.9ma (page 227), transmitter needs 16.6mA(page 227), CPU can need 9.6 (page  75) , chart on page 152 shows > 30ma possible

So answer is around 12.9+16.6+9.6 = 39.1mA max 

You cannot run the radio in TX and RX mode at the same time. For this, you'll need two physical radios, and we only have one.

It is always hard to say what the absolute maximum current consumption is, because most people forget the GPIOs.

Icpu + Iradio_tx_4dBm = 16.6 + 9.6 = 26.2 mA, but you can also configure each GPIO as an output and source some mA's in total on all these in addition.

The overall peak current heavily depends on how your application and board is setup.

If you do not account for the GPIOs, 30 mA when running in LDO mode is possible by enabling close to _all_ peripherals at the same time (SAADC, UART, TWI, SPI, PWM, RNG, TEMP, CCM, ECB, NFCT, etcetera), but this is not a very likely scenario.

We recommend using the DCDC if you're concerned about peak current consumption.

Cheers,

Håkon