TPS7A52: spice model strange behavior when disable

Jean Bouchat

Part Number: TPS7A52

Hello,

I have a strange behavior when simulating the TPS7A52. It looks like the output discharge function works as a reverse boost instead of dissipating the energy:

Is it possible to modify the spice model in order to have a more realistic simulation?

Best regards

over 3 years ago

0 Juliette over 3 years ago

TI__Genius 16606 points

Hi Jean,

We are currently editing that PSPICE Model. I will have to check to see if the discharge function is one of the errors being addressed.

The model will not be officially uploaded for at least 2 weeks.

Best,

Juliette

0 Stephen Ziel over 3 years ago

TI__Mastermind 29150 points

Hi Jean,

Can you please attach your schematic so we can review it on our end?

Thanks,

- Stephen

0 Jean Bouchat over 3 years ago

Prodigy 130 points

Hello,

Please fin attached the schematic.

Best regards,

Jean

TPS7A52 test.TSC

0 Stephen Ziel over 3 years ago in reply to Jean Bouchat

TI__Mastermind 29150 points

Hi Jean,

We have reviewed this model and we also see the issue you are describing. Unfortunately this issue is a result of the particular model architecture and is a limitation of the device model. If you have additional questions regarding the device functionality that we can help support, please let us know.

Thanks,

- Stephen

0 Jean Bouchat over 3 years ago

Prodigy 130 points

Hi Stephen,

Thanks for the information. It is already good to have confirmation that it is an simulation artifact.

Regards,

Jean

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TPS7A52: spice model strange behavior when disable