TPS2121: Failure to complete DC analysis: Operating point not found

Rich Weinberg

Part Number: TPS2121
Other Parts Discussed in Thread: TINA-TI

Tina 9.3.200.277

Just starting out with this device. Attempting to get data sheet, page 25, circuit to work. Please ensure that I have the correct model. It is labeled: TPS2121_TRANS. I believe that this is the encoded model.

From the macro:

* Part: TPS2121
* Date: 10MAY2018

All DC simulations fail to converge. I have followed "TINA/Spice/TINA-TI: convergence issue after 25% simulation". Increased all noted parameters by 10x. No change.

Thanks in advance for the help.

over 5 years ago

0 Shreyas Dmello over 5 years ago

TI__Mastermind 32650 points

Hi Rich,

Are you using the pSpice model provided on the TPS2121 page in TINA-TI?

It is not possible to work/get correct results with encrypted pSpice models in TINA TI.

Unencrypted models require an NDA to be signed between TI and your Organization.

0 Rich Weinberg over 5 years ago in reply to Shreyas Dmello

Prodigy 80 points

Thank you. I did get the simulation to complete, but the results did not make sense. I will get the NDA in place.

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TPS2121: Failure to complete DC analysis: Operating point not found