MSP430F249: Thermal resistance data

Carlo

Part Number: MSP430F249

Hi E2E.

Good day.

Our customer would like to know the thermal resistance data for both 64 pin LQFP and VQFP of MSP430F249. Thank you in advance for your support.

Best regard,

Carlo

over 4 years ago

0 JD Crutchfield over 4 years ago

TI__Mastermind 26420 points

Hey Carlo,

I'm not sure exactly what they are looking for. For MSP430, we specify the operating ranges based on Free air temperature in the device datasheet: http://www.ti.com/lit/ds/symlink/msp430f249.pdf

For the MSP430F249 specifically, there is an 85C max device and a 105C max device.

Thanks,

0 Keith Barkley over 4 years ago in reply to JD Crutchfield

Guru 35580 points

He wants Theta-JA. The thermal rise from the die to ambient at a certain power dissipation.

0 Carlo over 4 years ago in reply to JD Crutchfield

TI__Expert 7715 points

Hi JD,

Thank you for responding. The thermal resistance information includes the Theta JA, Theta JC, Theta JB, do we have this data for both LQFP and VQFP packaging?

Regards,

Carlo

0 JD Crutchfield over 4 years ago in reply to Carlo

TI__Mastermind 26420 points

Hey Carlo,

It appears that this information is not publically available, but I'll reach out to our systems team and see if they have it and I can share.

It may take a little while to get this information, so I'll have to get back to you. Going to mark as resolved for now.

Thanks,

0 Keith Barkley over 4 years ago in reply to Carlo

Guru 35580 points

Carlo:

Thermal resistance is really not needed for the MSP's since the dissipated power is so low, there is no thermal rise to speak of.

0 Carlo over 4 years ago in reply to Keith Barkley

TI__Expert 7715 points

Hi Keith,

Thank you for pointing this out.

0 Carlo over 4 years ago in reply to JD Crutchfield

TI__Expert 7715 points

Hi JD,

Do we have any update on this? The thermal resistance data is very important to our customer.

Would it be possible if we can provide a specific timeline to our customer regarding the availability of the information?

Thank you very much for your support.

Regards,

Carlo

0 JD Crutchfield over 4 years ago in reply to Carlo

TI__Mastermind 26420 points

Hey Carlo,

I've finally been able to feedback on the thermal data for the LQFP package. We don't have the RGC data currently. I've requested it. I don't have an exact timeline currently, but it will likely be several weeks.

Here is the MSP430F249 Thermal Data:

Theta JA = 53.2

Theta JC = 14.3

Theta JB = 24.7

Thanks,

0 JD Crutchfield over 4 years ago in reply to JD Crutchfield

TI__Mastermind 26420 points

Hey Carlo,

Here is the RGC Data for the MSP430F249TRGC.

Theta JA = 24.7

Theta JC = 12.0

Theta JB = 10.1

Thanks,

0 Carlo over 4 years ago in reply to JD Crutchfield

TI__Expert 7715 points

Hi JD,

Thank you for providing the details and for your help, I'll share the information with our customer.

Regards,

Carlo

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MSP430F249: Thermal resistance data