TINA/Spice/LM25011: LM25011

Abhishek Kanhe

Prodigy 120 points

Part Number: LM25011
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

LM25011 Tina-Ti simulation is giving error.

Plz help to resolve

over 5 years ago

0 Arpan Gupta over 5 years ago

TI__Expert 3140 points

Hi Abhishek,

Could you please attach your test circuit (.TSC file) here?

Thanks & Regards,

Arpan Gupta

0 Abhishek Kanhe over 5 years ago in reply to Arpan Gupta

TI__Prodigy 120 points

Plz see the attachment.

CSA-MAIN-1.TSC

0 Arpan Gupta over 5 years ago in reply to Abhishek Kanhe

TI__Expert 3140 points

Hi Abhishek,

I simulated your circuit and did not observe any error message. Below is the simulation result.

Could you please check if you are using latest version of TINA-TI (Version 9.3.200.277 SF-TI).

Thanks & Regards,

Arpan Gupta

0 Abhishek Kanhe over 5 years ago in reply to Arpan Gupta

TI__Prodigy 120 points

Hi,

It is giving issue while checking the o/p from multimeter.

0 Arpan Gupta over 5 years ago in reply to Abhishek Kanhe

TI__Expert 3140 points

Hi Abhishek,

I am able to replicate the issue now and to fix it I have changed the value of Shunt conductance to 1f from 0 in Analysis parameters setting. PFA the updated test bench 4452.CSA-MAIN-1.TSC.

Thanks & Regards,

Arpan Gupta

0 Abhishek Kanhe over 5 years ago in reply to Arpan Gupta

TI__Prodigy 120 points

Hi,

Even i tried to change it but plz see the simulation updated the ip voltage is 12 V unit step but multimeter shows 6.99E-19 V!

0 Arpan Gupta over 5 years ago in reply to Abhishek Kanhe

TI__Expert 3140 points

Hi Abhishek,

The model you are using is a transient start-up simulation model. Hence, when we simulate for DC OP, simulator shows the node voltages at t=0. As the input source is a step voltage, simulator finds input voltage ~0V at t=0. This is why you are observing very low input voltage (~0V) in DC OP simulation.

As this is a transient start-up simulation model, I would suggest you to do transient simulation. Then you will observe node voltage change with respect to time. I think you are interested in observing steady state node voltages. Hence, if you make a transient simulation, after start-up device will reach steady state. Then you can observe every node voltage at steady state. (To start transient simulation press CTRL+ALT+T and then hit ENTER)

Thanks & Regards,

Arpan Gupta

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TINA/Spice/LM25011: LM25011