Since the TL494 is a legacy part, most semiconductor manufacturers (Texas Instruments, ON Semiconductor) provide SPICE models on their websites. However, these are often in PSpice format. For LTspice, it is often easier to use a simplified behavioral model or a converted subcircuit.
To simulate it, you must create or import a SPICE model. Below is the step-by-step process to get the TL494 running in your LTspice environment. tl494 ltspice
: Alternatively, you can keep the files in your project folder and add a SPICE directive to your schematic: .include TL494.sub 2. Functional Pins and Modeling Considerations Since the TL494 is a legacy part, most