TL494CN

TL494CN is a Texas Instruments pulse-width-modulation control circuit in 16-pin PDIP, tube packaging — 7 V to 40 V supply, on-chip oscillator from 1 kHz to 300 kHz, dual uncommitted output transistors (200 mA sink/source, 40 V collector), selectable single-ended or push-pull operation, variable dead time from ~3% to 100%, stable 5 V reference, two error amplifiers, 0 to +70 °C (C grade). The uncommitted dual outputs are the selection point: one part serves push-pull, half-bridge, full-bridge, buck, boost, flyback or forward topologies, which is why the TL494 became the industry-default SMPS controller in low-cost power supplies, lighting ballasts and motor drives. Selection advice: the C means 0 to +70 °C commercial — the TL494IN is the −40 to +85 °C industrial twin for wider-temperature designs; match the suffix to your operating range. The dead-time control pin must be terminated (not left open) for proper operation. TI lists TL494CN as Active. Evidence: TI TL494 datasheet (SLVS074) and distributor listings confirm 7–40 V, 300 kHz, dual 200 mA outputs, PDIP-16 and tube packing. Match the full TL494CN code.