"thermal resistance" of nRF52832-QFAA-R7

RE: "thermal resistance" of nRF52832-QFAA-R7

ketiljo — Tue, 07 Jan 2025 11:55:22 GMT

Hi Susan

It's a lengty process to change the datasheet so that's not possible, sorry.

40 C/W is a typical value for a QFN packet and it's not something we have measured in any way. The device is very low power with max power dissipation of less than 50 mW.

Cheers,

Ketil

RE: "thermal resistance" of nRF52832-QFAA-R7

Susan_cfx — Tue, 07 Jan 2025 07:22:40 GMT

Hi Ketijo,

Thank you for your reply. Could you please add the thermal resistance of 40 C/W to the data sheet of nRF52832-QFAA-R7? Then send me the download link for the datasheet, or send it to the email: susan.sun@beontag.com

Because without a test report and the parameter not listed in the data sheet, the certification body does not recognize the thermal resistance value. Thank you for your understanding.

Best wishes,

Susan

RE: "thermal resistance" of nRF52832-QFAA-R7

ketiljo — Thu, 02 Jan 2025 08:16:46 GMT

There are no separate therma test report for this part as this is norally not parameter you neet to take ont.o account as the power dissipation is low.

Typical junction to air thermal resistance for a QFN packet like this is 40 C/W. Junction to case is not important as cooling fins are not needed.