WEBENCH® Tools/TPS54620: Unable to find bode plot / phase margin analysis tool or graph

Mark Wagner48

Part Number: TPS54620
Other Parts Discussed in Thread: TINA-TI

Tool/software: WEBENCH® Design Tools

attempting to modify an existing TPS54620 to add remote sense, and use WEBENCH Designer for the first time. I can get the voltage waveform, but can't figure out how to do a stability analysis. The only icons I have are: NEW, EDIT, BOM, SIM, EXPORT, SIM EXPORT, SHARE DESIGN HELP. Selecting "SIM" doesn't bring up any additional menus.

over 7 years ago

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

TI__Mastermind 39210 points

Mark,

Under Sim, you should see Bode Plot Sim option. Also check out Re-Comp button.

https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=8D098FBEB1C996E9

0 Mark Wagner48 over 7 years ago in reply to Nikhil Gupta (Product Folder Models)

Prodigy 140 points

No its doesn't appear once you edit the schematic and add a cap. As I mentioned previously, once you start editing the schematic, you can't get back to the screen that shows these other options.

0 Nikhil Gupta (Product Folder Models) over 7 years ago in reply to Mark Wagner48

TI__Mastermind 39210 points

Yes, once you use free form edit, there is no way for us to know what circuit it is so Bode plot average models are not supported after that. For such cases, please use the TINA-TI average model on the web instead. There is a reference design example which you can use as a starting point and start modifying from there.

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WEBENCH® Tools/TPS54620: Unable to find bode plot / phase margin analysis tool or graph