The TL494 is a fixed‑frequency pulse‑width‑modulation controller designed for switch‑mode power supplies. It integrates an on‑chip oscillator, error amplifiers, a 5 V reference and provides both push‑pull and single‑ended output configurations.
The document lists maximum ratings, electrical characteristics, oscillator and dead‑time control sections, and includes typical application schematics, timing diagrams and test‑condition results for designers.
| Power Supply Voltage (VEO) typical | 15 V |
|---|---|
| Power Supply Voltage (VEO) maximum | 42 V |
| Collector Output Current per transistor | 500 mA |
| Reference Voltage (VREF) | 4.90 V – 5.10 V |
| Input Offset Voltage (VIO) typical | 2.0 mV |
Each output transistor can handle up to 500 mA of collector current.
The internal reference voltage is specified as 4.90 V to 5.10 V.