LM6171: Spice model slows down speed of simulations

Stefan Lintner

Part Number: LM6171

Hi Team,

my customer reported that the spice model of LM6171 slowed down his simulation speed significantly.

Would you have a more simplified version of the LM6171 model?
If this is not available, any suggestions on how to improve the simulation speed?

BR,

Stefan

over 3 years ago

0 Hasan Babiker31 over 3 years ago

TI__Genius 15555 points

Hello Stefan,

We don't have another version of the model.. can you clarify what type of sim the customer is trying to implement here?

Best,

Hasan Babiker

0 Stefan Lintner over 3 years ago in reply to Hasan Babiker31

TI__Expert 4905 points

Hi Hasan,

Its just a time domain simulation, using LM6171 in a feedback control loop.

BR,
Stefan

0 kai klaas69 over 3 years ago in reply to Stefan Lintner

Guru 140200 points

Hi Stefan,

the simulation speed can heavily slow down when the simulation enters regions of abnormal operation. This can be the exceeding of common mode input voltage range or the leaving of linear output voltage range when going into output saturation or when the phase margin is eroded and the circuit becomes instable, to name only some of these conditions.

You might want to post the simulation file here :-)

Kai

0 Hasan Babiker31 over 3 years ago in reply to kai klaas69

TI__Genius 15555 points

Closing this thread as the issue has been taken offline.

Best,

Hasan Babiker

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LM6171: Spice model slows down speed of simulations