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LMR43606-Q1:About RθJA of LMR43606-Q1

Yuuichirou Ichikawa

Prodigy 100 points

Part Number: LMR43606-Q1

Tool/software:

Hi team.

About RθJA of LMR43606-Q1

In [6.4 Thermal Information] of the datasheet,

there are two values of RθJA, but under what conditions is 84.4°C/W? (50°C/W is listed as a 4-layer PCB.)

over 1 year ago

0 Andrew Kutzler over 1 year ago

TI__Mastermind 23815 points

Hi Ichikawa-san,

The 84.4°C/W is for the package, (not just LMR43606-Q1). The second value is what we measured when testing the thermal performance of the EVM.

Thanks,

Andrew

0 Yuya Shoji over 1 year ago in reply to Andrew Kutzler

TI__Expert 5520 points

Hi Andrew,

I'm Shoji, FAE supporting this customer. The package thermal impedance was tested under below link condition, right?

https://www.ti.com/lit/an/spra953d/spra953d.pdf?ts=1720779930992

Best Regards,

Shoji

0 Andrew Kutzler over 1 year ago in reply to Yuya Shoji

TI__Mastermind 23815 points

Hi Shoji-san,

Yes, I believe so.

Thanks,

Andrew

0 Yuya Shoji over 1 year ago in reply to Andrew Kutzler

TI__Expert 5520 points

Hi Andrew,

The customer understood your answer as well. I'll close this post. Thank you for your cooperation.

Best Regards,

Shoji