Texas Instruments

TL494IDR  

DC DC Switching Controllers

The TL494 is a monolithic integrated circuit manufactured by Texas Instruments that is designed for use as a control circuit for DC-DC converters, inverters, and class D audio power amplifiers. It is a fixed frequency current mode control PWM controller that offers high performance and flexibility for a wide range of applications.

Description:

The TL494 is a highly versatile and flexible control circuit that is capable of operating in a variety of different modes, including PWM, PFM, and burst mode. It features a wide input voltage range, high accuracy, and low quiescent current, making it suitable for use in a wide range of applications.

Features:

• Fixed frequency current mode control PWM controller
• Wide input voltage range: 4.5V to 38V
• High accuracy and stability
• Low quiescent current: 70µA maximum
• Overload protection
• Thermal shutdown
• Soft-start function
• External clock input
• External modulation input
• Push-pull or open-drain output stage

Applications:

The TL494 is suitable for use in a wide range of applications, including:

• DC-DC converters
• Inverters
• Class D audio power amplifiers
• Motor control
• Battery chargers
• Power supplies
• LED drivers

In summary, the TL494 is a highly versatile and flexible control circuit that is suitable for use in a wide range of applications. Its fixed frequency current mode control PWM operation, wide input voltage range, high accuracy, and low quiescent current make it a popular choice for designers looking for a reliable and efficient solution for their power conversion needs.

TL494IDR Documents

Download datasheets and manufacturer documentation for TL494IDR

Images :

Mechanical Outline Drawing      

Models :

TL494IDR Symbol & Footprint by SnapMagic      

Product Catalogs :

Power Management Guide 2018 (Rev. R)      

Application Notes :

Isolated Multiple Output Flyback Converter Design Using TL494       Off-Line SMPS Failure Modes PWM Switchers and DC-DC Converters