topic Re: Ntag ic temperature condition question. in NFC

Ntag ic temperature condition question.

JJYOO — Wed, 26 Oct 2022 01:29:45 GMT

Hello.

We are developing a product using NFC tag function.

NXP's NFC products have temperature specifications of -25 to 75 ambient temperature and -55 to 125 storage temperature.

Is it possible to operate even if I save the ntag in -40 for 4 hours and return it to -25? And wouldn't it affect the product?

Thanks in advance.

Re: Ntag ic temperature condition question.

KaiLi — Wed, 26 Oct 2022 02:52:30 GMT

Hello @JJYOO

The critical value of ambient temperature at -25 degrees Celsius, it should be ok to work at this temperature, but the performance of the chip may not be very good. So it is not recommended to work near the critical value.

Best Regards,

kelly

Re: Ntag ic temperature condition question.

JJYOO — Wed, 26 Oct 2022 23:35:16 GMT

Dear kelly @KaiLi

Really appreciate your test result and quick reply.

Then, is it okay not to operate at -40 temperature as shown in the specification?

Best Regards,

JJYOO

Re: Ntag ic temperature condition question.

KaiLi — Thu, 27 Oct 2022 02:19:51 GMT

Hello @JJYOO

In the ambient temperature range of 0°C to 50°C, the PICC should work normally. This is the ISO-14443 protocol specification for temperature. So it is not recommended to work at such extreme temperatures, in which case the RF signal performance will be degraded.

Best Regards,

kelly

Re: Ntag ic temperature condition question.

JJYOO — Thu, 27 Oct 2022 02:40:18 GMT

Hello. kelly @KaiLi

I asked the wrong question.

It won't work at -40 temperature.

It will be stored at temperature -40 as written in the specification of the IC.

After that, is there no problem if it operates in the operating temperature range?

Best Regards,

JJYOO

Re: Ntag ic temperature condition question.

KaiLi — Thu, 27 Oct 2022 03:02:41 GMT

Hello @JJYOO

Yes, there is no problem within the normal operating temperature range.

Best Regards,

kelly