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The TL493, TL494 and TL495 are monolithic PWM control ICs that integrate error amplifiers, current‑limit amplifiers, oscillators, dead‑time control and output‑control circuitry. They support both push‑pull and single‑ended output configurations and are intended for power‑supply control applications.
The document provides absolute maximum ratings, recommended operating conditions, electrical characteristics, timing component values, and typical performance graphs such as oscillator frequency versus timing resistance and voltage gain versus frequency.
| Supply voltage (VCC) | 7 V – 40 V |
|---|---|
| Oscillator frequency | 1 kHz – 300 kHz |
| Operating temperature range (TL494) | -25 °C – 85 °C |
| Operating temperature range (TL493/TL495) | 0 °C – 70 °C |
The TL494 can be powered from 7 V up to 40 V.
The integrated oscillator can be set to run between 1 kHz and 300 kHz.
The TL494 is specified for operation from –25 °C to 85 °C.