LM494 Datasheet PDF - National Semiconductor Pulse Width Modulated Controller Specs

LM494 - Pulse Width Modulated Controller

Datasheet Summary

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 ou

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.

Datasheet Details

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

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Full PDF Text Transcription

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LM494 Pulse Width Modulated Control Circuit June 1989 LM494 Pulse Width Modulated Control Circuit General 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 s

Published: Mar 22, 2005 |