TL494 Pulse Width Modulation Controller IC

TL494 Pulse Width Modulation Controller IC

The TL494 is a versatile and widely used Pulse Width Modulation (PWM) controller IC designed by Texas Instruments. It is specifically developed for switch-mode power supplies (SMPS) and DC-DC converters, offering precise control, high efficiency, and excellent stability in power regulation systems.

The TL494 integrates all the necessary components to control a switching power supply — including an error amplifier, oscillator, dead-time control (DTC), reference voltage, and output control circuitry — all within a single 16-pin package.

This makes it a go-to IC for designers building buck, boost, flyback, and push-pull converters, or any power supply requiring efficient PWM control.

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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

Specifications:-