The average and instantaneous current flow can be measured using the Power Profiler Kit II (PPK2). No attention to series resistors is needed.
Set PPK2 in Ampere Meter mode to measure the power outputs (VOUT1 and VOUT2) and in Source Meter mode to measure power inputs (VBAT and VBUS).
In Source Meter mode the power supply for the nPM1300 EK is from PPK2. In Ampere Meter mode the power for the EK is from an external source, with PPK2 placed in series between the EK and the load.
| PPK2 measurement mode | Parameters | Description |
|---|---|---|
| Ampere Meter | VOUT1 | Power outputs (BUCK outputs) measured with the PPK2 in series between the output and the load. |
| VOUT2 | ||
| Source Meter (supply) | VBAT | Power inputs (supplies) measured with the PPK2 as the power source into the EK. |
| VBUS |
For more information on the PPK2, see the Power Profiler Kit II.