Simulation, hardware & system design tools

Simulation, hardware & system design tools forum

TINA/Spice: TI-TINA Error: Floating Point Overflow during transient simulation.

BGX561

Intellectual 610 points

Other Parts Discussed in Thread: TINA-TI, INA139, INA169

Tool/software: TINA-TI or Spice Models

TI,

I am having issues with my TI-TINA simulation circuit. I have modified a WEBENCH export to TI-TINA that I have modified with my own control/feedback solution, using other TI-TINA models.

I cannot seem to get this circuit to simulate properly and have tried numerous Analysis Parameters sets. I have been receiving the error "Floating Point Overflow" when using the latest version of TI-TINA (9.3.150.328) and the "Transient Convergence Solutions" profile.

Assistance would be greatly appreciated.

Thanks

over 7 years ago

0 Nikhil Gupta (Product Folder Models) over 7 years ago

TI__Mastermind 39210 points

Hi,

We are looking into your question. It might take a little bit of time to go through it since it is a bigger circuit than what we have released.

0 BGX561 over 7 years ago in reply to Nikhil Gupta (Product Folder Models)

Intellectual 610 points

Thank you. Please let me know if I can assist your investigation further.

0 Vivek Agarwal over 7 years ago in reply to BGX561

TI__Intellectual 1595 points

Hi,

We have simulated the schematic provided by you and observed that the INA139 model used in the testbench is creating some issue.

However, the error didn't came by replacing INA139 with INA169 TINA-TI model (Available on the website).

Please find the attached schematic for your reference and kindly let us know if you have any more concerns.8446.sim.TSC

Thanks,

Vivek Agarwal