LM25010: How to get access to usable Spice simulation models for Altium Designer.

Al Brennan

Part Number: LM25010
Other Parts Discussed in Thread: TPS61291

Tool/software:

Hi all,

Developing a project in Altium, it would be very nice to be able to do simulations etc under one roof. But I can't seem to figure out how to get my hands on usable models for TI components. PArt of this may well be my ignorance, so please go easy. For example, I have a design with a TPS61291 on it. It would be excellent to be able to simulate that in the context of the actual Altium PCB with all the trace parasticis and that good stuff. I assume I'd need a model that Altium can understand for that. The 2 models in the product page don't seem to be applicable. One is for TI's own simulator, and the other appears to be encrypted.

By way of a follow up, and potentially equally dumb question, given that rubbish in = rubbish out, would it be sensible for me to state that: if I can't get my hands on a model that I can use within my Altium simulation environment, it would be more worthwhile investigating the free TI option.

I'm exploring options here and keen for your thoughts on the best way to proceed to achieve the best / most worthwhile simulation outputs.

Thanks,

the monkey.

11 days ago

0 Rahil Ajani 10 days ago

TI__Expert 4490 points

Hi,

Altium designer is just for PCB design, not simulations. If you would like to simulate our part we recommend using PSpice for TI.

Regards,

Rahil

0 Al Brennan 10 days ago in reply to Rahil Ajani

Prodigy 240 points

Hi Rahil, I think Altium would disagree with you on that assessment of their product. And I think I would agree with them! Altium is perfectly capable of running simulations. It's just that TI has decided to encrypt all of the device models for some reason??? Surely you can see that it's a wasteful duplication of effort to have to maintain a separate version of the schematics for a project to simulate, when the tool already supports the exact same capabilities? What possible rationale is there for TI to make life harder for their customers on purpose? Is it an IP issue?

0 Rahil Ajani 10 days ago in reply to Al Brennan

TI__Expert 4490 points

Hi Al,

TI encrypts it's files to protect IP. However, it seems like there is an unencrypted version available on the product page - https://www.ti.com/product/LM25010

Regards,

Rahil

0 Al Brennan 10 days ago in reply to Rahil Ajani

Prodigy 240 points

The part I'm interested in is the TPS61291 and many others which do not have unencrypted files.

So, it's an IP issue... What a pain in the back side. The amount of money spent on developing these tools, and neither Altium or TI really seem to have any interest in giving the customer what they actually need.

0 Rahil Ajani 10 days ago in reply to Al Brennan

TI__Expert 4490 points

Hi Al,

If you check the product page for TPS61291, you will find an unencrypted model - https://www.ti.com/product/TPS61291

If they are not present on the product page, they are likely not available for distribution.

Regards,

Rahil

Simulation, hardware & system design tools

Simulation, hardware & system design tools forum

LM25010: How to get access to usable Spice simulation models for Altium Designer.