TPS3899: CTS function does not does not affect the RESET_B signal in the spice model simulation

Yossi Aharon1

Part Number: TPS3899

Hi,

Does the CTS signal is modeled in the spice model?

When I perform the a simulation I see that the RESET_B is asserted when the SENSE pin goes below VT- without the delay set by the capacitor on the CTS pin (300nF for minimum of 150msec).

The VCC in the simulation remain above 0.85V for the relevant time. I see the CTS pin charge as expected.

See image below.

Best Regards,

Yossi

over 2 years ago

0 Ben C over 2 years ago

TI__Mastermind 27515 points

Hi Yossi,

Thank you for bringing this issue to our attention. We were aware of the issue and are in the process of updating the model. Hopefully, the model will be updated in the next few weeks. We ask for your patience.

Ben

0 Ben C over 2 years ago in reply to Ben C

TI__Mastermind 27515 points

Hi Yossi,

The model has been updated and is waiting for release. The process usually takes about a week or two to refresh.

If I have answered your question, please click on "resolved" to close the thread. Good luck!

Ben

0 Yossi Aharon1 over 2 years ago in reply to Ben C

Prodigy 150 points

Hi Ben,

Thanks for the update.

I'll check for updated model within two weeks.

Best Regards,

Yossi

0 Ben C over 2 years ago in reply to Yossi Aharon1

TI__Mastermind 27515 points

Hi Yossi,

Glad to be of help and thank you for being patience.

Ben

0 Ben C over 2 years ago in reply to Ben C

TI__Mastermind 27515 points

HI Yossi,

FYI, the pspice model has been updated with newer features where you can set the threshold voltage. Good luck!

Ben

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TPS3899: CTS function does not does not affect the RESET_B signal in the spice model simulation