![]() ![]() ![]() The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The error amplifiers exhibit a common-mode voltage range from –0.3 V to V CC – 2 V. The TL494 device 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. ![]() Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Circuit Architecture Allows Easy Synchronization.Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance.Variable Dead Time Provides Control Over Total Range.Internal Circuitry Prohibits Double Pulse at Either Output.Output Control Selects Single-Ended or Push-Pull Operation.Uncommitted Outputs for 200-mA Sink or Source Current. ![]()
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