Tl494 Ltspice [2021] Jun 2026

Map the pins according to the standard TL494 pinout: Pins 1 & 2: Error Amp 1 Inputs ( Invcap I n v Pin 3: Feedback ( Feedbackcap F e e d b a c k Pin 4: Dead-Time Control ( DTCcap D cap T cap C Pin 5 & 6: Oscillator CTcap C sub cap T RTcap R sub cap T Pin 7: Ground ( GNDcap G cap N cap D Pins 8 & 9: Collector & Emitter for Output 1 Pins 10 & 11: Emitter & Collector for Output 2 Pin 12: Supply Voltage ( VCCcap V sub cap C cap C end-sub Pin 13: Output Control (Common Emitter/Push-Pull) Pin 14: Reference Voltage ( VREFcap V sub cap R cap E cap F end-sub Pins 15 & 16: Error Amp 2 Inputs Constructing a Basic TL494 Buck Converter Simulation

So download that TL494 model, open LTSpice, and start simulating. Your bench’s smoke alarms will thank you. tl494 ltspice

Notes: This is a condensed, pragmatic starting point — refine slopes, gains, and the oscillator to match TL494 datasheet values (osc frequency set by RT/CT, deadtime control range, internal reference ≈5V, EA gains, output transistor drive limits). Map the pins according to the standard TL494

Feedback input (pin 5) overrides if lower D_FB 5 6 DCLAMP .MODEL DCLAMP D(Vfwd=0.7) Feedback input (pin 5) overrides if lower D_FB 5 6 DCLAMP