TPS25984: Transient thermal performance

Greg Schaefer

Part Number: TPS25984

Tool/software:

Greetings - I am looking for transient thermal response curves for this device. Is that available? If not, can you tell me the size of the die? I can estimate the thermal response if I know the die size. Thanks!

over 1 year ago

0 Kunal Goel over 1 year ago

TI__Guru* 79181 points

Hi Greg,

I will check and get back on this.

Regards

Kunal Goel

0 Kunal Goel over 1 year ago in reply to Kunal Goel

TI__Guru* 79181 points

Hi Greg,

Will below help? Can you share example curve? Also what is your concern behind asking this data?

0 Greg Schaefer over 1 year ago in reply to Kunal Goel

Prodigy 10 points

Hi, I was really looking for information that would help me determine what the junction temperature rise is as a function of time... in my application, I have the TPS25984 dissipating a lot of power for a short time... 9.38W in 135ms. This is a startup in-rush condition and I want to make sure there is no damage or thermal fault. I want to determine what the peak junction temperature is under that condition, in other words, how hot did it get after 135ms. The datasheet thermal resistances tell the temperature rise after a long period of time (i.e. steady-state). Thanks!

0 Kunal Goel over 1 year ago in reply to Greg Schaefer

TI__Guru* 79181 points

Hi Greg,

Got it. Let me check. This can take sometime.

Regards

Kunal Goel

0 Kunal Goel over 1 year ago in reply to Kunal Goel

TI__Guru* 79181 points

Hi Greg,

I have shared info with FAE. He will get back to you. I am closing here. Hope that is fine. You can always reopen by replying to this thread.

Regards

Kunal Goel

Power management

Power management forum

TPS25984: Transient thermal performance