TPS4811-Q1: TPS4811 pspice model

Jean Ricard

Part Number: TPS4811-Q1

Hi guys,

can someone at TI confirm if the overcurrent protection is modeled in the TPS48110 pspice model?

It appears that only the short circuit protection is modeled.

Even with RIWRN at >= 250K, impossible to start the VTMR charging, but the CS voltage should trigger it.

Thanks,

0 Rakesh over 1 year ago

Hi Ricard,

Overcurrent protection feature is modeled in the TPS48110 PSpice model.

Best Regards,

Rakesh

0 Jean Ricard over 1 year ago in reply to Rakesh

ok, thanks Rakesh.

But, please look at the result with RIWRN=250K

Even at V current sense (first trace) > 30mV, voltage at timer capacitor (red arrow) still do not charge from current source.

From spec:

Any idea?

Thanks,

0 Rakesh over 1 year ago in reply to Jean Ricard

Hi Ricard,

Can you share your PSpice project file to run and check at my end.

Best Regards,

Rakesh

0 Jean Ricard over 1 year ago in reply to Rakesh

0 Rakesh over 1 year ago in reply to Jean Ricard

Hi Ricard,

Thanks for sharing the file. we will check and get back by early next week as we have local holidays rest of the week.

Best Regards,

Rakesh

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