Now available from PMD Way are these useful TL494 PWM Controller ICs in packs of ten. The TL494 possesses all of the functions required to construct a pulse-width-modulation (PWM) control circuit on a single chip. Designed from the outset for power-supply control, this chip offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits. The error amplifiers display a common-mode voltage range from –0.3 V to VCC – 2 V. The dead-time control comparator has a fixed offset that gives approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies. The uncommitted output transistors allow for either common-emitter or emitter-follower output capability. The TL494 provides for push-pull or single-ended output operation, which can be chosen through the output-control function. The architecture of this device alleviates the possibility of either output being pulsed twice during push-pull operation. Features Complete PWM Power-Control Circuitry Uncommitted Outputs for 200-mA Sink or Source Current Output Control Selects Single-Ended or Push-Pull Operation Internal Circuitry Prohibits Double Pulse at Either Output Variable Dead Time Provides Control Over Total Range Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance Circuit Architecture Allows Easy Synchronization More information: Download TL494 datasheet (.pdf). Don't forget to check out our full range of Integrated Circuits if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.
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