Description

The TL494 device incorporates all the functions required in the construction of a pulse-widthmodulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.

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

Applications

• Desktop PCs

• Microwave Ovens

• Power Supplies: AC/DC, Isolated, With PFC, > 90 W

• Server PSUs

• Solar Micro-Inverters

• Washing Machines: Low-End and High-End

• E-Bikes

• Power Supplies: AC/DC, Isolated, No PFC, < 90 W

• Power: Telecom/Server AC/DC Supplies: Dual Controller: Analog

• Smoke Detectors

• Solar Power Inverters

TL494 Device Information

SOIC (16) 9.90 mm × 3.91 mm

PDIP (16) 19.30 mm × 6.35 mm

SOP (16) 10.30 mm × 5.30 mm

TSSOP (16) 5.00 mm × 4.40 mm