LM1921 - 1 Amp Industrial Switch

National Semiconductor

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Datasheet Details

Part number	LM1921
Manufacturer	National Semiconductor
File Size	124.64 KB
Description	1 Amp Industrial Switch
Datasheet	LM1921_NationalSemiconductor.pdf

LM1921 Product details

Description

The LM1921 Relay Driver incorporates an integrated power PNP transistor as the main driving element The advantages of this over previous integrated circuits employing NPN power elements are several Greater output voltages are available off the same supply for driving grounded loads typically 4 5 volts for a 500 mA load from a 5 0 volt supply The output can swing below ground potential up to 57 volts negative with respect to the positive power supply This can be used to facilitate rapid decay tim

Features

such as short circuit protection and thermal shutdown are also provided The input voltage threshold levels are designed to be TTL CMOS and LSTTL compatible over the.

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Published: Mar 22, 2005 |