Texas Instruments TL594 Pulse-Width-Modulation (PWM) Control Circuit TL594CDRG3

The TL594 Pulse-Width-Modulation (PWM) Control Circuit from Texas Instruments is designed for power-supply control applications. It integrates all necessary functions for constructing a PWM control circuit on a single chip, providing flexibility for system engineers to customize power-supply control circuitry for specific applications. The device features two error amplifiers, an adjustable on-chip oscillator, a dead-time control comparator, and a pulse-steering control flip-flop. It also includes a 5-V regulator with 1% precision and an undervoltage lockout circuit that disables outputs until the internal circuitry is operational. The TL594 supports both push-pull and single-ended output configurations, selectable via an output control function. It can handle uncommitted output transistors capable of 200 mA sink or source current. The architecture prevents double pulsing at either output during push-pull operation, ensuring reliable performance. This device is suitable for various applications, including power supplies for white goods, server PSUs, and solar micro-inverters.