CSD19538Q3A: thermal information of CSD19538Q3A

Ben Kuo

Expert 7455 points

Part Number: CSD19538Q3A

Dear team,

Could you share Rθ_JB data with me? thanks.

I only find RθJA & RθJC in device datasheet.

Regards,

Ben

over 3 years ago

0 John Wallace1 over 3 years ago

TI__Mastermind 33675 points

Hi Ben,

Thanks for the inquiry. The RθJC value specified in the FET datasheet is the same as RθJB as it is measured to the thermal pad on the bottom of the package. Please see this blog for more details.

Thanks,

John Wallace

TI FET Applications

0 Ben Kuo over 3 years ago in reply to John Wallace1

TI__Expert 7455 points

Hi John,

Thanks for your information.

So RθJB is the same as RθJC, am I right?

BTW, I cannot find the blog link you mentioned in last post. Could you help to check it again?

Regards,

Ben

0 John Wallace1 over 3 years ago in reply to Ben Kuo

TI__Mastermind 33675 points

Hi Ben,

Here is the link: http://e2e.ti.com/blogs_/b/powerhouse/archive/2016/06/10/understanding-mosfet-data-sheets-part-6-thermal-impedance

Thanks,

John

Power management

Power management forum

CSD19538Q3A: thermal information of CSD19538Q3A