LM4702 simulation model

Daniel Almeida

Hello everyone,

I've noticed problems while simulating the bias voltage, if I change the bias resistor value nothing happens because the current between source and source pins is very low, so I can't set the bias current passing thru the output devices, due to the same problem I can't also simulate driver transistors.

I don't know if this is the right forum for this question,

Thank you very much for your help,

Best regards,

Daniel Almeida

over 13 years ago

0 John De Celles over 13 years ago

TI__Expert 3840 points

Hi Daniel,

Could you please post your simulation model?

Thanks.

0 Daniel Almeida over 13 years ago in reply to John De Celles

Expert 1010 points

Schematic with model attached,

Best regards,

Daniel Almeida

1108.LM4702_multislope.TSC

0 John De Celles over 13 years ago in reply to Daniel Almeida

TI__Expert 3840 points

Hi Daniel,

I had trouble with the bias as well. I have forwarded the issue on to the modeling group. Let's see what they come up with.

Thanks.

0 John Dawson2 over 13 years ago in reply to John De Celles

Prodigy 20 points

Dear John,

Did you get an answer to this from the modelling group? I would like to carry out some work with the 4702 and have no way of biasing the output stage as far as I can see?

Sincerely,

John Dawson

0 Don Dapkus over 13 years ago in reply to John Dawson2

TI__Guru**** 189401 points

Hi, John,

Welcome to e2e, and thanks for your interest in our products.

Unfortunately, JD has left the company.

I suggest you post a request in our Webench e2e.

-d2

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LM4702 simulation model