LM5155: Un-encrypted Model Request

Trey German8

Expert 1930 points

Part Number: LM5155

I've heard rumors there are un-encrypted spice models of the LM5155 floating around that are available under NDA. Curious if I could get a copy of the model for this part? I'm an ex TI employee so I may still be covered by an old TI employment NDA. If not, please let me know what I need to do so I can get access to the spice model. I'm designing a SEPIC using this controller for an automotive application.

Thanks!

Trey German

over 6 years ago

0 Youhao Xi over 6 years ago

TI__Guru* 78400 points

Hi Trey,

Let me copy our system engineer who is charging the modeling now.

Best Regards,

Youhao

0 Trey German8 over 6 years ago in reply to Youhao Xi

Expert 1930 points

Thank you Youhao. I have a tight deadline to hit so I would appreciate any way you can expedite this request.

0 EricLee over 6 years ago in reply to Trey German8

TI__Guru 59101 points

Hi Trey

Does your company has a valid NDA with TI ? If yes, please contact local FAE and I will send the un-encrypted model via the FAE.

Since the unencrypted model is not released to public on TI.COM ,NDA is required to share the un-encrypted model.

Regards,
EL

0 Trey German8 over 6 years ago in reply to EricLee

Expert 1930 points

Eric,

No the company doesn't have an NDA in place with TI and I don't have an FAE. Just tell me what I need to do and I will do it. I just really need the model to prove out a design and move it forward.

Thanks,
Trey

0 Trey German8 over 6 years ago in reply to Trey German8

Expert 1930 points

Just following up on this. Still really need the model. How can we expedite this?

0 EricLee over 6 years ago in reply to Trey German8

TI__Guru 59101 points

Hi Trey

Which simulation tool are you planning to use ?

Regards,

0 Trey German8 over 6 years ago in reply to EricLee

Expert 1930 points

LTSpice... I've even gone so far as to try to recreate the control logic from the block diagram in the datasheet (without much success lol).

0 EricLee over 6 years ago in reply to Trey German8

TI__Guru 59101 points

Hi Trey

Would you please use PSPICE to prove your design? NDA is required to send the un-encrypted model to you unfortunately.

Regards,

0 Trey German8 over 6 years ago in reply to EricLee

Expert 1930 points

Eric,

Well I don't have a license for PSPICE. I guess I could try one of the trial ones. I would use Tina TI, but I don't see a model for this part in the tool.

I'm happy to sign an NDA. Seems like if we had started that process on Monday like I asked we could be done with this.

You can understand my frustration that TI is supplying a model in an encrypted 3rd party format that requires me to spend thousands for a license just in order to evaluate if the part will work for an application, right? It's even more frustrating that TI has their own simulation tool and a model is not supplied for it.

Best,

Trey

0 Youhao Xi over 6 years ago in reply to Trey German8

TI__Guru* 78400 points

Hi Trey,

Sorry for the frustration but you know how important an NDA means to TI in such matter. We really appreciate and want to help you to design with our product. However we also need to abide by the company policy in order to protect TI IPs.

Please contact a TI sales office in your region, which I assume you, a former employee, should know about the contact info. If you don't have the contact info, please tell me your region through the Private Message System (PMS) and I will forward the contact info to you.

I am going to invite you through PMS. Please respond through it. Lets close the discussion here.

Thanks,

Youhao

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LM5155: Un-encrypted Model Request