You can download the official TL494 PSpice model from TI's website. Note that while LTspice can run most PSpice models, some syntax adjustments (like changing ** to ^ ) might be needed in the subcircuit file.
| File | Purpose | |------|---------| | TL494.sub | Subcircuit definition (Spice netlist) | | TL494.asy | LTspice schematic symbol | | TL494_test.asc | Example test circuit | tl494 ltspice
Freewheel diode D1 0 SW D1N4148
The TL494 model in LTspice allows you to simulate several critical functions: SPICE model for tl494 - Simulation (Ngspice) You can download the official TL494 PSpice model
Alternate outputs on each oscillator half-cycle SAMPLE1 131 0 132 0 SW SAMPLE2 133 0 132 0 SW .MODEL SW VSWITCH(Ron=1 Roff=1G Vt=2.5 Vh=0.1) tl494 ltspice
You can save the following code as a text file named TL494.sub and place it in your LTspice library folder (typically C:\Users\[User]\Documents\LTspiceXVII\lib\sub ) [1, 3].
