LM494 - Pulse Width Modulated Controller

National Semiconductor

The LM494 by National Semiconductor is a Pulse Width Modulated Controller. Below is the official datasheet preview.

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LM494 Pulse Width Modulated Controller by National Semiconductor - Datasheet Preview — Official preview page of the **LM494** Pulse Width Modulated Controller datasheet (National Semiconductor).

Datasheet Details

Part number	LM494
Manufacturer	National Semiconductor
File Size	159.34 KB
Description	Pulse Width Modulated Controller
Datasheet	LM494_NationalSemiconductor.pdf
Additional preview pages of the LM494 datasheet.

LM494 Product details

Description

The LM494 is a monolithic integrated circuit which includes all the necessary building blocks for the design of pulse width modulated (PWM) switching power supplies including push-pull bridge and series configurations The device can operate at switching frequencies between 1 0 kHz and 300 kHz and output voltages up to 40V The operating temperature range specified for the LM494C is 0 C to 70 C and for the LM494V is b40 C to a 85 C

Features

Y Y Y Y Y Y Y Uncommitted output transistors capable of 200 mA source or sink On-chip error amplifiers On-chip 5 0V reference Internal protection from double pulsing of outputs with narrow pulse widths or with supply voltages below specified limits Dead time control comparator Output control selects single ended or push-pull operation Easily synchronized (slaved) to other circuits Block Diagram TL H 10056.
2 Connection Diagram 16-Lead DIP Ordering Information Device Code LM494IN.

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Published: Mar 22, 2005 |