The TL594CN is a fixed-frequency PWM controller from Texas Instruments, designed for a wide range of DC-DC converter topologies including buck, boost, flyback, forward, full-bridge, half-bridge, and push-pull configurations. It provides a single output phase driving external transistors. Housed in a 16-pin DIP package, it operates from a supply voltage of 7 V to 40 V and switches between 1 kHz and 300 kHz. The maximum duty cycle of 97% allows near-continuous on-time, useful for low-dropout step-down regulation. Control features include dead-time control and frequency control, giving the designer flexibility to adjust the output waveform and switching frequency for the specific topology.
This means the manufacturer no longer produces the part and has no scheduled last-time-buy window. New designs should not use this part; for legacy BOM support, the only sourcing channel is independent distribution or surplus inventory.
It is not specified for industrial or automotive temperature ranges.