Tl494 Ltspice [TOP]

Let’s simulate a simple buck converter stepping down 20V to 5V at 100 kHz. We’ll use a community model called TL494_TR.lib .

Since an official model is unavailable, engineers widely use the macro-model originally optimized by independent developers (such as Bordodynov). You can find stable functional netlists on platforms like GitHub's Power Inverter Repositories .

Output steering: C1 and C2 (pins 10,11) are collector outputs tl494 ltspice

command (press 'S' to add a SPICE directive) to point to your library file. Common Simulation Pitfalls

Simulating the TL494 in LTspice, while not officially supported, is entirely achievable thanks to community-driven models. Here's a summary of the essential steps: Let’s simulate a simple buck converter stepping down

Triangle Wave Generation B_osc 103 0 V=(TIME*500k) % 1 ; Simplified Sawtooth representation

Amplifier 1 (pins 1,2) -> output to COMP (pin 6) G_EA1 0 6 VALUE 0.001 * (V(1,2)) You can find stable functional netlists on platforms

Since Texas Instruments does not provide an official TL494 SPICE model, you must use community-verified files: