TL594

The TL594 from Texas Instruments is a complete PWM power-control circuitry on a single chip. It is designed for power supply control, offering flexibility for specific applications. Key features include uncommitted outputs capable of 200-mA sink or source current, and an internal regulator providing a stable 5-V reference supply trimmed to 1% precision.

This device incorporates two error amplifiers, an on-chip adjustable oscillator, a dead-time control comparator, a pulse-steering control flip-flop, and an undervoltage lockout control circuit. The output control function allows selection between single-ended or push-pull operation. The architecture prevents double pulsing at either output, and variable dead time provides control over the total range.

The TL594 is suitable for various applications including white goods, isolated AC/DC power supplies with or without PFC, server PSUs, and solar power inverters. It is available in multiple package options such as SOIC, PDIP, TSSOP, and SOP.

Available package types include SOIC (16) with dimensions 9.90 mm x 3.91 mm, PDIP (16) measuring 19.3 mm x 9.4 mm, TSSOP (16) at 5 mm x 6.4 mm, and SOP (16) measuring 10.2 mm x 7.8 mm.