Dear all developers,
I'm currently studying about nRF52832 SoC and prepare to develop low current BLE device.
Before starting, I want to know about idle current consumption on nRF52832. I've already read
several questions on this forum and nRF52832's PS(product specification) v1.4, but i'm still wondering about this issue.
First, as i attached below, in 7.2.1 of PS, CPU current has mA units (e.g. CPU current, running from flash, cache disabled,
DCDC 3V = 3.9 mA). Does it means that CPU consumes the 3.9 mA per unit times? I don't understand what those current
value indicates.
If the above current (e.g. 3.9 mA) stands for, minimum current consumption on nRF52832 should be higher than 3mA.
However, many low power applications mentioned in this forum aim at much lower application (< 200 uA).
Also, in 18.3.1 in PS, it saids that "When the system enters System ON mode, it will, by default, reside in the low power
sub-power mode" and in ultra-low power (mode?), current consumption level is specified in 17.1.1 lower than 2 uA.
Therefore, I don't know which information is right.
Actually, in this Onlie Power Profiler ( https://devzone.nordicsemi.com/power/ ), calculating current consumption
in several BLE scenarios, Idle current is fixed as 2.0 uA. Then, is that a correct figure?. If this figure is correct, if I use
the nRF52832 chip for advertising a few bytes, it could be operating under 100 uA. Does it make sense ... ?
If not, this Power Profiler just indicate the current consumption used in radio module ? (excluding other peripherals or even CPU)
Thank you for reading, and please reply on my questions, experts 
- Daewoong Kim
