npm1300 slew rate in VBUS current

RE: npm1300 slew rate in VBUS current

Amanda Hsieh — Tue, 17 Jun 2025 12:59:26 GMT

Thanks for the feedback. I will forward it to the internal.

dani_martin — Tue, 17 Jun 2025 07:13:13 GMT

Thanks for the explanation. Perhaps you could add this additional info in the next version of the manual, so it is more clear.

So, basically, we can't control the current in VBUS as we need. This is a trigger for us to start looking for another PMIC

Amanda Hsieh — Mon, 16 Jun 2025 14:56:27 GMT

Hi,

it is not possible for customers to overwrite OTP.
OTP just sets the default value of this register, that's what the last sentence is about - default value from the OTP will be used rather than the reset value of 0x00. Only values listed here can be used to set the limit in the software.

-Amanda H.

dani_martin — Mon, 16 Jun 2025 13:24:31 GMT

Thanks for the answer, but the possible values in the OTP memory for VBUSINILIM0 don't fit our needs.

* Is it possible to modify them?

* Also there is this sentences....can you elaborate on it, please??

Amanda Hsieh — Mon, 16 Jun 2025 13:01:17 GMT

Hi,

You can use VBUSINILIM0 + TASKUPDATEILIMSW, which is made to limit the current taken to VBUS.

Regards,
Amanda H.