ATL431 - TINA-TI model

Hi Nikhil san 

Thank you for your reply.
Please refer to the following file.
20161206_ATL431.pdf

We simulated using TINA-TI model which was exported by Webench.
Comapred to the datasheet one,  we could not obtain gain characteristics like as the datasheet.
That's why, could you give us the spice model for AC test which shows the datasheet?

Kind regards,

Hirotaka Matsumoto

Hi Nikhil san and team

We are sorry to rush you.
However, could you give us the reply?

Kind regards,

Hirotaka Matsumoto

Matsumoto-san,

I believe that the model was tested for transient tests in the datasheet. I do not know if the model was tested for the AC response.

This will require further investigation.

Thanks for your patience.

Britt san

Thank you very much for your reply.

I believe that the model was tested for transient tests in the datasheet. I do not know if the model was tested for the AC response.
->We got your circustanse, so could you give us the model for AC response?
   How much do you need to require further investigation? one week? two weeks? or one month?
   And then, the test result of the datasheet is not simulated data? Using actual equipment, did you get the data?

We appreciate your help.

Kind regards,

Hirotaka Matsumoto

Matsumoto-san,

The plot in the datasheet is not from a model. It is from data that was taken when the device was characterized by the design team. The majority of the plots shown in the datasheet are not from models, but from data that was taken.

We use this data to verify the models when they are created. In some cases, models do not contain all of the behavior of the device. This is a standard industry practice when creating behavioral models.

I need further time to find out why the AC behavior does not match. My understanding was that the AC behavior was characterized, however, I have not found the test of the model that was used to compare with the data in the data sheet. The model was revised a few times to address the transient behavior and the noise response. These adjustments may have effected the AC behavior of the device. I am hoping to find out more shortly (days, not weeks).

Britt san

Thank you very much for your cooperation always!
Ok, we are waiting for your modification.

Kind regards,

Hirotaka Matsumoto

Britt san

Could you let us know your circumstance?

Kind regards,

Hirotaka Matsumoto

Matsumoto-san,

Unfortunately, I was out of the office for the past few days. I do know that the team was taking a look at the issue while I was out. I will let you know what I find out as soon as I get an update. Thanks for your patience.

Britt san

OK, we are waiting for your reply.

Kind regards,

Hirotaka Matsumoto

Britt san

Could you let us know your circumstance?

Kind regards,

Hirotaka Matsumoto

Matsumoto-san,

Based on the investigation, it appears that a new model would be required for AC (Bode Plot) simulation. I was hoping that there could be a modification of the existing model to address the AC simulation needs.

I do not have a schedule for the new model development at this time.

Apologies for the delay in response. I wanted to be sure what was needed before providing a response.