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TPS61376: TPS61376 PSICE TI simulation Error

Part Number: TPS61376
Other Parts Discussed in Thread: TPS55289

Tool/software:

Dear TI experts.

When simulating with reference circuit from datasheet, the following error occurs.

Please check what the problem is.

Unfortunately, I can't attach the modeling circuit diagram due to our firewall.

I'm sorry, but please check with only the log below

Thanks

Sungsik Jung

==============================================================================

Convergence problem in transient bias point calculation

These voltages failed to converge:

V(N22229) = 551.92mV \ 579.00mV
V(N22153) = 117.93mV \ 145.01mV
V(X_U1.COMP_H) = 1.600V \ 1.144V
V(X_U1.I_PFM) = -51.65mV \ -51.81mV
V(X_U1.COMP_OTA) = 15.00mV \ 10.73mV
ERROR(ORPSIM-15661): 5 of 5 errors shown. See output file for complete list

These supply currents failed to converge:

I(X_U1.X_HK.E_E1) = -207.89mA \ -4.110mA
I(X_U1.X_U71.E_ABMGATE) = -285.01mA \ -200.79nA
I(X_U1.X_U73.E_ABMGATE) = -285.01mA \ -200.79nA
I(X_U1.X_U72.E_ABMGATE) = -285.01mA \ -200.00nA
I(X_U1.X_U896.E_ABMGATE) = -285.01mA \ -200.00nA
ERROR(ORPSIM-15661): 5 of 39 errors shown. See output file for complete list
ERROR(ORPSIM-15660): These devices failed to converge
D_D2
X_U1.X_DRV.D_D2
X_U1.X_U2.d1
X_U1.X_HK.X_U876.d_d11
X_U1.E_ABM165
ERROR(ORPSIM-15661): 5 of 5 errors shown. See output file for complete list
INFO(ORPROBE-3185): Simulation paused
Exception calling SimServer SaveState

  • Hi 

    I cannot locate root cause without your model file. Please try adjusting simulation setup like below. This will reduce accuracy but improve convergence. If this doesn't help, there's nothing I can do without your simulation file. (I'm using another model as an example, please neglect the file name TPS55289)

    Best Regards,

    Travis