SN74AHCT125PWR - Junction to Ambient & Case Thermal Resistance

Pang

Dear Ti,

Kindly please help to advise the SN74AHCT125PWR on Junction to Ambient Thermal Resistance and Junction to Case Thermal Resistance, as I couldn't obtain it from Ti website or datasheet.

Junction to Ambient Thermal Resistance

over 7 years ago

0 ShreyasRao over 7 years ago

TI__Guru 57490 points

Hi N3t ,

I have placed the request for the thermal model . Please remind again after 2 days if I do not get back to you .

0 Pang over 7 years ago in reply to ShreyasRao

Expert 2395 points

Hi Shreyas,

Have you got the information on the thermal model?

0 ShreyasRao over 7 years ago in reply to Pang

TI__Guru 57490 points

unfortunately , I do not see the thermal model come through yet which is surprising to me.
I have pinged them now on giving an estimated completion date.

0 ShreyasRao over 7 years ago in reply to ShreyasRao

TI__Guru 57490 points

N3t ,

here are the results : all units in degC/ W.

Result- Theta JA-High K (standard datasheet value) 121.5
Result-Theta JC, top (standard datasheet value) 50.2
Result-Theta JB (standard datasheet value) 63.2
Result- Psi JT (standard datasheet value) 6.1
Result- Psi JB (standard datasheet value) 62.7
Result-Theta JC, bottom (standard datasheet value) n/a

0 Pang over 7 years ago in reply to ShreyasRao

Expert 2395 points

thanks

Logic

Logic forum

SN74AHCT125PWR - Junction to Ambient & Case Thermal Resistance