nrf52832 ESD HBM problem

RE: nrf52832 ESD HBM problem

JONATHAN LL — Wed, 17 Mar 2021 08:34:11 GMT

Hi,

To protect the nrf52840 you will have to use diodes on all the GPIO's, switches and buttons or any other interface and from the power supply that are excisable from the outside. So you need to ad protection circuitry to protect against ESD higher then 4Kv

Regards,
Jonathan

RE: nrf52832 ESD HBM problem

zhanglt3420 — Mon, 15 Mar 2021 08:03:25 GMT

HI Jonathan ,thanks for your reply. Our product is medical instruments.so we should do the EMC tests.One of the tests is 8Kv ESD electrostatic protection standard. But I read the datasheet of nRF52832, the Max voltage is 4Kv. So i want to know How to solve the 8Kv ESD test. what should we do to protect the IC 52832....In addition, I would like to know what damage will be caused to 52832 if the ESD voltage exceeds 4Kv. Thanks.

RE: nrf52832 ESD HBM problem

JONATHAN LL — Fri, 12 Mar 2021 13:13:14 GMT

Hi,

I am not sure i understand the question completely.

[quote user=""]recently Our equipment is certified[/quote]

What does this refer to?

[quote user=""]The ESD Voltage is over 6kV[/quote]

Is this what you measure or experience on your equipment?

Regards,
Jonathan