WEBENCH® Tools/LM5140-Q1: Pspice tool

H Jayaraj

Intellectual 590 points

Part Number: LM5140-Q1

Tool/software: WEBENCH® Design Tools

As many of models we are getting is pspice models, Can anyone suggest pSPICE tool for simulation.

over 5 years ago

0 Iven Su over 5 years ago

TI__Expert 8245 points

Hi,

Please just use PSpice which is a SPICE-based simulator.

0 H Jayaraj over 5 years ago in reply to Iven Su

Intellectual 590 points

Please share the link.

As Orcad pspice needs licence.

So, if you know any free simulator Share the link to download.

0 Iven Su over 5 years ago in reply to H Jayaraj

TI__Expert 8245 points

Hi,

Yes I mean Orcad PSpice. You can also try TI-Tina which can be found in the below page:

http://www.ti.com/design-resources/design-tools-simulation/models-simulators/overview.html

0 H Jayaraj over 5 years ago in reply to Iven Su

Intellectual 590 points

FYI, Pspice models cannot be used with TINA TI, We should have either .TSM file or UNencrypted model.

Can u verify the Design if Schematic is sent?

0 Iven Su over 5 years ago in reply to H Jayaraj

TI__Expert 8245 points

Hi,

Yes, we can help check the schematic if it's OK but you still need to verify it in your own system.

0 H Jayaraj over 5 years ago in reply to Iven Su

Intellectual 590 points

Hi,

PFA of LM5140 Schematic,

Please validate and if possible, provide output voltage Ripple.LM5140.pdf

0 Iven Su over 5 years ago in reply to H Jayaraj

TI__Expert 8245 points

Hi,

What are your input voltage and target working conditions? Please use the below quick start tool with your inputs. For output voltage ripple I still recommend to use simulator because it's related to the actual output capacitance.

www.ti.com/.../LM5140ADESIGN-CALC

0 H Jayaraj over 5 years ago in reply to Iven Su

Intellectual 590 points

Its input voltage is 12V.

0 Iven Su over 5 years ago in reply to H Jayaraj

TI__Expert 8245 points

Hi,

We have a calculation tool in last post, it's designed to help design and check all LM5140 components. If you want to verify working performance, it's better to try it in simulator or actual board. Thanks.

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WEBENCH® Tools/LM5140-Q1: Pspice tool