LM20146：How to edit time scale in WEBENCH

Hayashi

Part Number: LM20146
Other Parts Discussed in Thread: TINA-TI

Hi team

I simulated the circuit by the LM20146 in WEBENCH.
The changing point is the value of Css the capacitor for soft start.
but, the graph of result is not match the range of scale.
Please let me know how to change the scale.

Best regards
Hayashi

over 7 years ago

0 JohnTucker over 7 years ago

TI__Guru**** 191445 points

Hayashi-san,

Can you share your Webench design with me? You can send it to j(dash)tucker(at)ti(dot)com

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

Hayashi-san,

It is easy to change the axis setting to a longer time using the "Waveform Controls". However the simulation times appear to be fixed, so it does not really do any good.

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

Hayashi-san,

The simulation times are fixed in Webench. If you need to simulate a longer time, you will need to use the TINA-TI export simulation:
www.ti.com/.../slvmay6

0 Hayashi over 7 years ago in reply to JohnTucker

Expert 1840 points

John Tucker san

Thank you for your support.
I understand the LM20146 can't change the time on WEBENCH. Unfortunately, the LM20146 don't open model of TINA.
Do you have any good ideas?

For your information, the CSS changed capacitor from 6.8F to 33F.

Best Regards,
Hayashi

0 JohnTucker over 7 years ago in reply to Hayashi

TI__Guru**** 191445 points

Hayashi-san,

Let me see if I can open it.

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

Hayashi-san,

You are correct. There is no option for TINA-TI export.

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LM20146：How to edit time scale in WEBENCH