Measure current via VBUSIN on the nPM1300 during end-of-line-test

[olofjohnsson]

Hello support!

I am using the nRF9151 and the nPM1300 on a custom board.

Is is possible to measure the current drawn by the board via the VBUSIN? The reason is too have a reference in the end-of-line-test. I will read the current att different stages using the fuel gauge but i also need a way to read the total current drawn just by feeding the board with the VBUSIN. So basically i need to a way to disconnect the battery programatically and then measure the current through VBUSIN to see how much current the board is draining.

[Ressa]

Hi Olof,

Below is the feedback I received from our internal team regarding your question:

The nPM1300 has no VBUSIN current-sense channel (only VBUS voltage measurement available), so it can't report VBUS input current at all.

Best regards,
Ressa

[olofjohnsson]

I mean supply the board with 5 V using a power source that measures the current externally