LMR51440: PSpice Model

Agit Zulharman

Part Number: LMR51440

Hello TI,

Since we know this part is new from TI, we need a PSpice model to simulate the part's characteristics to our circuit.

We will also be simulating the PGood function which we coupled to the active discharge capacitor circuit. Do you have any recommendations on adding an active discharge capacitor circuit on the LMR51440?

over 1 year ago

0 Gui He over 1 year ago

TI__Mastermind 22226 points

Hi Agit

Let me check with team and reply to you later.

Thank you

0 Gui He over 1 year ago in reply to Gui He

TI__Mastermind 22226 points

Hi Agit

The LMR51440 Pspice model is in developing. May take 2 months.

What kind of active discharge circuit do you want to add?

Thank you.

0 Agit Zulharman over 1 year ago in reply to Gui He

Prodigy 10 points

The active discharge circuit to add to our circuit is to immediately discharge the output voltage of regulator when Vout reach 75% during power down sequence.

0 Gui He over 1 year ago in reply to Agit Zulharman

TI__Mastermind 22226 points

Hi Agit

You can take a look at the Figure1 in below technical article:

https://e2e.ti.com/blogs_/b/powerhouse/posts/don-t-leave-it-floating-power-off-your-outputs-with-quick-output-discharge?keyMatch=ACTIVE%20DISCHARGE%20CAPACITOR%20CIRCUIT

Thanks and best regards.

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LMR51440: PSpice Model