TLV62569: ERROR(ORPSIM-15461): Incorrect number of interface nodes for X_U1. X_U1 is a TLV62569P_TRANS

Hi Romuald,

Which reference design did you choose? There are 4. I selected the last, TLV62569_TRANS, and it ran start-up just fine.

I was going to provide a screen grab, but snip and PSpice froze my computer.

David

Hi David,
I want to use the TLV62569P_TRANS as it contains the PG pin.

I have been able to use the TLV62569_TRANS model too but I am not able to see the regulator going in power save mode.
Have you been able to see the SW pin changing is behavior to power save mode?

Romuald

Have you checked the model? There are comments at the top specifying what is modeled. Perhaps I'm misunderstanding, but I don't see anything about power save mode being modeled.

David

On the TLV62569P model, if I understand correctly,there is a comment for low power mode " d. Zero current detection and mode."
Moreover the "Switching Characteristics and variation with VIN" are modeled. For me switching must reflect the output variation and on power save mode the switching is different than on normal mode.
As there is no comment for the TLV62569 model I am not sure if the PSM model is embedded or not. 

But the issue for now is that I am not able to use the TLV62569P model as I see this error "ERROR(ORPSIM-15461): Incorrect number of interface"
How can I find the cause of the issue?

Romuald

Hi Romuald, I'm going to send this over to the product line as I'm out of my depth in regards to how this was modeled. They should be able to give you a clear answer, one way or the other.

David

Hi Romuald,

I tried simulating the TLV62569P PSPICE Trans model and was able to do so without any errors. The PFM mode was also simulating as expected.

Can you send a snippet of the library paths you have?

Best regards,

Varun

Hello Varun,

Here is the snippet of the library path that I use.

Regards,

Romuald

Hi Romuald,

Can you delete the 2 files highlighted in red below and then add to design the library file (TLV62569P_TRANS.LIB) contained in your local project folder using the browse button?

Best regards,

Varun

Hi Varun,

I made the change but the issue are still the same.

Here is the out file from simulation:

**** 11/23/23 15:01:46 ******* PSpice 17.4.0 (Nov 2018) ******* ID# 0 ********

** Profile: "SCHEMATIC1-essai_1" [ C:\Cadence\Test\test-pspicefiles\schematic1\essai_1.sim ]

**** CIRCUIT DESCRIPTION

******************************************************************************

** Creating circuit file "essai_1.cir"
** WARNING: THIS AUTOMATICALLY GENERATED FILE MAY BE OVERWRITTEN BY SUBSEQUENT SIMULATIONS

*Libraries:
* Profile Libraries :
* Local Libraries :
* From [PSPICE NETLIST] section of C:\cds_spb_home\cdssetup\OrCAD_PSpiceTIPSpice_Install\17.4.0\PSpice.ini file:
.lib "C:\R&D\LTspice_lib\slvmc19b\TLV62569P_PSPICE_TRANS\TLV62569P_TRANS.LIB"
.lib "nom.lib"

*Analysis directives:
.TRAN 0 3ms 0 10n
.OPTIONS ADVCONV
.OPTIONS FILEMODELSEARCH
.PROBE64 V(alias(*)) I(alias(*)) W(alias(*)) D(alias(*)) NOISE(alias(*))
.INC "..\SCHEMATIC1.net"

**** INCLUDING SCHEMATIC1.net ****
* source TEST
R_R1 N00596 VIN 100k TC=0,0
C_C2 N00495 OUT 22u TC=0,0
R_R3 FB OUT 200k TC=0,0
R_R4 0 FB 100k TC=0,0
L_L1 N09553 OUT 2.2uH
V_V1 VIN 0
+PWL 0 0 0.5m 3.3
V_V2 N07996 0
+PWL 0 0 1m 0 1.0001m 3.3
R_R6 N09553 SW 33m TC=0,0
R_R7 0 N00495 500u TC=0,0
R_R8 0 OUT 1.8 TC=0,0
X_U4 N07996 FB 0 N00596 SW VIN TLV62569P_TRANS X_U4 N07996 FB 0 N00596
+ SW VIN TLV62569P_TRANS PARAMS: SS=1

**** RESUMING essai_1.cir ****
.END

ERROR(ORPSIM-15461): Incorrect number of interface nodes for X_U4.

Regards,

Romuald

Hi Romuald,

The X_U4 definition in the out file is wrong. 

Is this with a new schematic you created? Could you zip your project and attach it?

Best regards,

Varun

Hi Varun,

I made some test with other version of the TLV62599 and the part number have been increased.
Here is the zip file.

8400.Test.zip

Regards,

Romuald