LM51551-Q1: LM51551-Q1 TINA simulation issue

Anita Guglani

Part Number: LM51551-Q1

Tool/software:

Hello,

I have made a power supply using LM51551-Q1 with Flyback configuration. I am simulating the circuit in TINA TI. The issue is IC is not producing any output. Don't know whether its a TINA TI simulator issue or something else. The circuit is attached for reference.

Design parameters:

Input: 8V - 30V DC

Output: 12V/5A

Frequency: 100kHz

1 month ago

0 Moritz 1 month ago

TI__Expert 5505 points

Hi Anita,

Thanks for reaching out.

From the schematic i cannot see the issue directly.

Can you please share the simulation file? Then i can check it.

Best regards,

Moritz

0 Anita Guglani 1 month ago in reply to Moritz

Prodigy 20 points

Hello Moritz,

The simulation file is attached.LM51551-Q1 Supply_01.TSC

0 Moritz 1 month ago in reply to Anita Guglani

TI__Expert 5505 points

Hi Anita,

Thanks for the simulation file.

There seems to be an issue with the model, i will check with the responsible persons.

As this will take some time, i would recommend to use PSPICE for TI in the meantime.

Best regards,

Moritz

0 Anita Guglani 1 month ago in reply to Moritz

Prodigy 20 points

Hi Moritz,

Okay, I will try this with Pspice. Can you please share the Pspice for TI model of the IC LM51551-Q1 as it is showing error page when I tried to download the Pspice model of the IC available at TI page.

0 Anita Guglani 1 month ago in reply to Moritz

Prodigy 20 points

Hi Mortiz,

Can you please share the Pspice for TI setup file. I have already placed a request for it on TI website about 4 hours before but didn't get the download permission yet.

0 Moritz 1 month ago in reply to Anita Guglani

TI__Expert 5505 points

Hi Anita,

sorry i cannot help you with this.

For issues with downloads like models or the software itself, please open a seperate E2E thread.

Best regards,

Moritz

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LM51551-Q1: LM51551-Q1 TINA simulation issue