https://devzone.nordicsemi.com/f/nordic-q-a/65554/ovp-ocp-on-vbus-pinHi, We are using nRF52840 on our product. Since we want to support USB function, we connected VBUS pin of the chipset directly to the USB connector. We would like to know is there any over voltage protection (OVP) and over current protection (OCPen-USTelligent Community 13Fri, 04 Sep 2020 11:33:29 GMThttps://devzone.nordicsemi.com/thread/268039?ContentTypeID=1Fri, 04 Sep 2020 11:33:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8e50a589-b7bf-4b1f-92c9-6a7bc83501d0Andreas<p>Hi,</p> <p>&nbsp;</p> <p>There is ESD protection on the pins, but there is no guarantee that it will survive exceeding the<a href="https://infocenter.nordicsemi.com/topic/ps_nrf52840/abs_max_ratings.html?cp=4_0_0_8"> absolute maximum ratings</a>. You should consider adding extra protection externally, see e.g. the <a href="https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF52840-DK/Download#infotabs">nRF52480-DK HW design files</a>.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>