The TL494 is a fixed frequency, pulse width modulation control

circuit designed primarily for switch mode power supply control.

Features

? Complete Pulse Width Modulation Control Circuitry

? On?Chip Oscillator with Master or Slave Operation

? On?Chip Error Amplifiers

? On?Chip 5.0 V Reference

? Adjustable Deadtime Control

? Uncommitted Output Transistors Rated to 500 mA Source or Sink

? Output Control for Push?Pull or Single?Ended Operation

? Undervoltage Lockout

? NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

? Pb?Free Packages are Available*

TL494CD屬于集成電路（IC） > DC-DC 開關(guān)控制器。安森美半導(dǎo)體公司制造生產(chǎn)的TL494CDDC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。