RθJA (thermal resistance, junction-to-ambient) value required for intrisic safety certification

[Amarotica]

Hey there, we are currently going through regulatory testing for a hazloc product. Our product includes an nRF52805 which is used for BLE provisioning and debugging of the system. Our certification partner requires the RθJA value for the nRF52805 IC to continue with certification.

We have been unable to find the RθJA in Nordic's documentation - are we overlooking something?

To be clear, it is quite obvious that this IC shouldn't have thermal issues/safety issues, but intrisic safety certifications are extremely strict and need the actual data nonetheless.

Thanks in advance!

[Asbjørn]

Hi Taylor,

I'm awaiting feedback if we have numbers on this available. I'm guessing you've seen the numbers for the nRF52840. The numbers will be in the same range with the nRF52805 as it is using the same QFN/CSP package, but the actual details for nRF52805 we need to wait for.

Best regards

Asbjørn

[Amarotica]

Thank you Asbjørn , that is some great info that we've now forwarded to our certification partner as initial/interim information. They are still looking for the nRF52805 numbers, so I'm looking forward to when you get those details back.

Best,

Taylor