TPSM84338: PSPICE sim of TPSM84338

Christopher Hirt

Part Number: TPSM84338

Tool/software:

The PSPICE simulation with this part gets to 11mS and then just sits there. No errors or indications it won't converge, just appears stalled at this time. If I probe the VIN current to the device, I see a spike around 710uS, but everything is dead after that up to the 11mS point when I stopped the sim.

Any suggestions what to look for to get a PSPICE sim to complete?

6 months ago

+1 Christopher Hirt 6 months ago

Prodigy 30 points

cadence Allegro 23.1

+1 Christopher Hirt 6 months ago in reply to Christopher Hirt

Prodigy 30 points

Simplified circuit. Results after sim stagnates at 1.74mS

NOT RESOLVED. What's with the "resolved" button looking like it was resolved.

Still need help, can't get this simple circuit in PSPICE to run a 10 second sim.

0 Gui He 6 months ago in reply to Christopher Hirt

TI__Mastermind 27296 points

Hi Chris

Can you please share the simulation profile setup? Or you can share your simulation files to me.

Thanks and best regards.

0 Christopher Hirt 6 months ago in reply to Gui He

Prodigy 30 points

switcher_dimmer-2025-03-11T05-07.zip

Here's an archive of the project. Does this provide the simulation profile you are looking for?

0 Gui He 6 months ago in reply to Christopher Hirt

TI__Mastermind 27296 points

Hi Christopher

I will check this early tomorrow.

Thanks and best regards.

0 Gui He 6 months ago in reply to Christopher Hirt

TI__Mastermind 27296 points

Hi Christopher

Unfortunately my computer collapsed , I will check about this once it's ready.

Thank you

0 Christopher Hirt 5 months ago in reply to Gui He

Prodigy 30 points

Looking forward to hearing whyat you find. I'm starting to wonder if this has something to do with the model being encrypted, and possibly my companies "background" cyber security s/w interacting.