LM1951 National Semiconductor, LM1951 Datasheet

LM1951

Manufacturer Part Number

LM1951

Description

LM1951 Solid State 1 Amp Switch

Manufacturer

National Semiconductor

Datasheet

1.LM1951.pdf (10 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM1951MX

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM1951T

Manufacturer:

NSC

Quantity:

5 510

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C 1995 National Semiconductor Corporation

LM1951 Solid State 1 Amp Switch

General Description

The LM1951 is a high current high voltage high side (PNP)

switch with a built-in error detection circuit

The LM1951 is guaranteed to deliver 1 Amp output current

and is capable of withstanding up to

built-in error detection provides an error flag output under

the following fault conditions output short to ground or sup-

ply open load current limit overvoltage or thermal shut-

down The LM1951 will drive all types of resistive or induc-

tive loads The output has a built-in negative voltage clamp

(

inductive loads The LM1951 features TTL and CMOS com-

patible logic input with hysteresis Switching times both turn

on and turn off are 2 s (C

quiescent current in the OFF state is typically less than

0 1 A at room temperature and less than 10 A over the

entire operating temperature and voltage range

The LM1951 features make it well suited for industrial and

automotive applications

Typical Application Circuit and Connection Diagram

30V) to provide a quick energy discharge path for

load k

TL H 9133

0 005 F) In addition its

85V transients The

See NS Package Number T05A

Order Number LM1951T

TO-220 5-Lead

Front View

Output

OFF

Features

0 1 A typical quiescent current (OFF state)

1 Amp output current guaranteed

Reverse voltage protection

Negative output voltage clamp

Error flag output

Internal overvoltage shutdown

Internal thermal shutdown

Short circuit proof

High speed switching (up to 50 kHz)

Inductive or resistive loads

Low ON resistance (1

TTL CMOS compatible input with hysteresis

Plastic TO-220 5-lead package

ESD protected

4 5V to 26V operation

85V transient protection

TL H 9133 – 2

maximum)

RRD-B30M115 Printed in U S A

TL H 9133 – 1

August 1992

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