UC1901 Spice model

_{Thanks Nikhil,}

_{I can use Tina-Ti.}

_{Do you have the model for UCC28C45 or its equivalent?}

_{My design contains both UC1901 and UCC28C45.}

_Thanks,

_Shihab.

Hello Nikhil,

I am doing simulation with UC1901 , the unconnected pins of the circuit are creating error, like external clock, NC,NC1 and status, uis there any solution ? can it be grounded ?

Regards

Prasanna Sinthaje

Yes, you can connect all of them to GND through a 1Meg resistor.

Hi all, 

I am having some troubles simulating with Orcad 10.5 the transient and average model. 

For all simulations the PSpici A/D gives this errors: 

.SUBCKT UC1901 CT EXTCLK NC DRIVERB DRIVERA NC1 GND VIN STATUS COMP INV NINV VREF RT
* Oscillator *
$CDNENCSTART
$
ERROR -- Invalid device in subcircuit
eee8c5c7a2bc4b01f045f303678664e7916da0bae22e8cb0bba041dd67c69ce448ea70148a9ac1670c8926c1ac5057c8ccfcd77bf87ca9dc0b84dea08e3fb82d
--------------------------------------------------------------------------------------------------------------------------------$

**** EXPANSION OF SUBCIRCUIT X_U1 ****
X_U1.$CDNENCSTART
-$
ERROR -- Invalid device

Any advice? Thanks in advance, 

Andrés.

Hi Andres

The model from the web is encrypted and will work in versions 15.7 and above alone. you will need an unencrypted model which you can request from your field application engineer.

Regards

Ranjani