Anu,The PSpice models for the TI NexFETs on the web are encrypted and can only run in PSpice version 15.7 or higher. In order to import them into another simulator that supports PSpice models, an unencrypted model would be required.

1. Use Pspice Model In Ltspice

TI requires an NDA for release of the NexFET models in an unencrypted format. If you have an NDA with TI, we can provide you the unencrypted models.Another option would be to use TINA-TI, a free spice simulator. We can provide the.TSM macro files for the NexFETs that will work in TINA-TI.Britt. Gert,Thanks for providing your opinion. Encryption is a necessary evil at this point in time.

This is the more general form of the resistor presented in section 6.1, and allows the modeling of temperature effects and for the calculation of the actual resistance value from strictly geometric information and the specifications of the process. If VALUE is specified, it overrides the geometric information and defines the. Baixar cd novo amado batista gratis en. The available shapes include bars, toroids, EE EI and UI cores. The Curie temperature TC, namely the temperature at which the material loses its ferromagnetic properties, is between 100 and 300 ° C, depending on the type of material; the phenomenon is reversible, reducing the temperature to below the TC material regains its properties.

You may consider it ridiculous, but you may want to ask a different question as to why it exists in the first place. Encryption is protection for the model provider as to ANY intellectual property that is contained in the model. It is also protection to keep someone from changing the model without having the proper training or understanding of how the model was made.Do I expect you to trust that the simulation model accurately represents the datasheet?

Yes, but I also expect you to trust your engineering judgement when you see results that do not make sense. The best model in the world placed in a poor implementation looks poor. An an Engineer, you should trust your engineering judgement moreso than a linear equation solver.

Simulation does not know what you are trying to do. It is trying to solve a matrix based on a bunch of rules and limits. Modeling Engineers strive to provide the most accurate product models that simulate quickly and represent measured data for a given product and its design.Temperature simulation is a very complicated issue. Yes, the nominal PSpice models are correct at room temperature and no additional temperature is added to the simulations to approximate temperature behavior. The vast majority of the users I am familiar with would not be able to modify the model (or its parameters) properly and get the actual temperature behavior.

Use Pspice Model In Ltspice

If it was a very simple task, it would already be incorporated into the modeling process.I am not trying to change your opinion about encryption or our models in general.Britt. Britt,Thank you for the reply. Are you selling the physical device or the model? Thus, IMO, the disclosure of intellectual property in the model, from which the physical device can hardly be reverse engineered, is what ought to be the necessary evil. The reason of protecting the user of the model by encryption is a fallacy and severely limits the capabilities of those users who do know what they are doing.

I do hope that the time will come when encryption will no longer be necessary and here is why:I already have a simulation model of a much larger system in LTSPICE. Do you expect me to convert my model to another simulator? I would really have liked to use the CSD19531Q5A Mosfet from TI. It really has an amazing Miller Charge characteristic, unlike I have ever seen. From an end user perspective I gain trust in a model when I can simulate it. And better yet, when I can adjust its parameters and perform a sensitivity analysis, because your right I do have to use my own judgement, but that judgement is based on quantitative results.I am sorry to say that without that trust I will have to choose another manufacturer (and I am not saying that as a petty trump card).Regards,Gert. Hi Gert,I can understand your frustration with the encryption of models.

It does limit the usage of the models to the simulator in which they are encrypted. However the models do contain sensitive IP information in many cases which can be reverse engineered so we can not always release them unencrypted on the web site.However, if you do need the unencrypted model, we can provide that to you individually. In this case, we will need an NDA with you and your company. I would recommend that you contact your local TI AFA for this. Let me know if you need any help getting this information.Thanks for considering TI Parts in your application.Best regards. All content and materials on this site are provided 'as is'.

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