UC1825: UC1825B-SP: Too few nodes: xu5 32 ct gnd dpst_switch_0

Part Number: UC1825

I got this error message "xu5 32 ct gnd dpst_switch_0" when doing simulation on the UC1825 using the SPICE model provided by TI.

It looks like someone ran to the same issue 2 years ago here, but it's unclear what the solution is.

Below is my simplifed schematic for reference:

Wonder if you have any suggestions to resolve it.

over 1 year ago

0 Hong Huang over 1 year ago

TI__Guru 57825 points

Hi,

It looks this device has only TINA model. Please build and run your circuit with TI TINA.

0 H2 over 1 year ago in reply to Hong Huang

Prodigy 65 points

Hi Hong Huang,

Look like this model can be used in LTSPICE. In this TI thread, that person was using LTSPICE as well. Wonder if that is an absolute NO for the LTSPICE? I would take a big effort to move to TINA considering some other parts of the circuit that I already have.

+1 Hong Huang over 1 year ago in reply to H2

TI__Guru 57825 points

Hi,

TI does not support LTSpice. If you use LTSpice, you would need to make debugging by yourself. TI only supports the model supposedly to use along with.

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

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UC1825: UC1825B-SP: Too few nodes: xu5 32 ct gnd dpst_switch_0