On Tue, May 6, 2025 at 10:09 AM, <mahmood.fares1988@...> wrote:
If I may ask, where do you get access to their PSPICE models, as googling that always directs me to downloading the CADENCE PSPICE for TI software, and you have to apply for some sort of special license or something. Is there any where I can download the PSPICE models discretely? Apologies for the trivial request, but for some reason I can't find any source to these models. I understand the specific IC I want is encrypted, but I want the source to search for other ICs that may be non-encrypted.
Texas Instruments puts all their SPICE (PSpice and TINA-TI) models on the webpage for the part.? That is the place to look.? To be best of my knowledge, that is the only place to look for models of T.I.'s parts.
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So, for the TPS26636, I Googled and then went to the webpage for that part:? That brought me to the family webpage for TPS2663x:
Then I scrolled down the page.? Look for the section "Design & Development".? To narrow down the search better (not needed, but this may help a little), also click "Design tools & simulation" which is below "Design & development".? All that does is eliminate the other sections on that webpage that do not include SPICE models.? Then scroll down, and - voila! - there is the PSpice model:
TPS2663 PSpice Transient Model (Rev. A)
and download the file.
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Yes, it says "TPS2663", but according to the datasheet, the actual part numbers have 5 digits so they are all TPS2663x where 'x' is a digit.? It includes the TPS26636.
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All T.I. product pages work this way.? If T.I. has a PSpice model, or a TINA-TI model (which might actually be SPICE), or an HSPICE model, or a "generic" SPICE2 or SPICE3 model, it is right there on the product's webpage.? OK, there is a chance that T.I. might have a model hidden away where you can't find it except by asking them politely, but in my experience all their models are right there on their product webpages where they can be found and downloaded.
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Instead of googling the SPICE model, google the product name.? Then look for the SPICE model on the webpage.? This works for T.I.? Unfortunately, it does not always work this nicely for all IC manufacturers.
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Sometimes they (T.I.) tell you that a model is not encrypted.? But if it doesn't say, it might be either encrypted or not encrypted, and the only way to know for sure is to download it, open it, and look at it.? SPICE models are readable text (netlists).? Anything that looks like machine code is encrypted.
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The encrypted model can of course be used in PSpice, even in the special "PSPICE-for-TI".? If it is encoded for PSpice, it can be used only in one form or another of PSpice.
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Just for your information, there can be encrypted models for (at least) these simulators:
- PSpice (including PSPICE-FOR-TI)
- TINA (including TINA-TI)
- HSPICE
- LTspice
Each program's encryption is unique to that program only.
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Andy
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