SN74AUC2G32: Junction temperature calculation

Charles Zhang1

Part Number: SN74AUC2G32

Hi team,

I found that SN74AUC2G32 datasheet only defines thermal resistance of junction to ambient, then what about thermal resistance of junction to case? And how should I calculate the power dissipation of SN74AUC2G32 to estimate the junction temperature?

Thanks,

Charles

over 4 years ago

0 Emrys Maier over 4 years ago

TI__Guru* 97046 points

Hi Charles,

We can get the other thermal values for you. Which package are you using?

To calculate the power consumption of a device, there's an FAQ that goes into detail here: [FAQ] How do I Calculate Power Consumption or Current Consumption for my CMOS Logic Device?

0 Charles Zhang1 over 4 years ago in reply to Emrys Maier

TI__Expert 3430 points

Hi Emrys,

Thanks for your reply, the package is VSSOP(SN74AUC2G32DCUR).

0 Rami Mooti1 over 4 years ago in reply to Charles Zhang1

TI__Mastermind 35638 points

Hey Charles,

I've submitted a request for this data. Please allow up to 2 weeks for this to come through and I will update you as soon as the information becomes available.

Thanks!
Rami

0 Rami Mooti1 over 4 years ago in reply to Rami Mooti1

TI__Mastermind 35638 points

Hey Charles,

Here's the thermal resistance of junction to case you requested:

Theta JC, top (standard datasheet value)

140.4 C/W

Thanks,
Rami

Logic

Logic forum

SN74AUC2G32: Junction temperature calculation

Theta JC, top (standard datasheet value)