Multi-topology PWM controller for industrial power rails
The TL594CDG4 is a fixed-frequency PWM controller from Texas Instruments that drives external power switches in buck, boost, flyback, forward, push-pull, half-bridge, and full-bridge converters. Two transistor-driver outputs with a 97 % maximum duty cycle give it the headroom for low-dropout pre-regulators or high step-down ratios.
The switching frequency spans 1 kHz to 300 kHz. The 7 V to 40 V supply range lets it run off a single industrial bus without a separate bias rail. Dead-time control and frequency control are on-chip, so you set the oscillator timing with one resistor and one capacitor, then adjust the dead time with a second resistor — no external clock generator needed.