The TL594 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application.
●The TL594 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 regulator with a precision of 1%, an undervoltage lockout control circuit, and output control circuitry.
●The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.
● 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 Trimmed to 1%
● Circuit Architecture Allows Easy Synchronization
● Undervoltage Lockout (UVLO) for Low-VCC Conditions
