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PDF LM1951 Data sheet ( Hoja de datos )
| Número de pieza | LM1951 | |
| Descripción | LM1951 Solid State 1 Amp Switch | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM1951 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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August 1992
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 g85V transients The
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
( b30V) to provide a quick energy discharge path for
inductive loads The LM1951 features TTL and CMOS com-
patible logic input with hysteresis Switching times both turn
on and turn off are 2 ms (Cload k 0 005 mF) In addition its
quiescent current in the OFF state is typically less than
0 1 mA at room temperature and less than 10 mA over the
entire operating temperature and voltage range
The LM1951 features make it well suited for industrial and
automotive applications
Features
Y 0 1 mA typical quiescent current (OFF state)
Y 1 Amp output current guaranteed
Y g85V transient protection
Y Reverse voltage protection
Y Negative output voltage clamp
Y Error flag output
Y Internal overvoltage shutdown
Y Internal thermal shutdown
Y Short circuit proof
Y High speed switching (up to 50 kHz)
Y Inductive or resistive loads
Y Low ON resistance (1X maximum)
Y TTL CMOS compatible input with hysteresis
Y Plastic TO-220 5-lead package
Y ESD protected
Y 4 5V to 26V operation
Typical Application Circuit and Connection Diagram
VIN Output
0 OFF
1 ON
TO-220 5-Lead
TL H 9133 – 1
Front View
Order Number LM1951T
See NS Package Number T05A
TL H 9133 – 2
C1995 National Semiconductor Corporation TL H 9133
RRD-B30M115 Printed in U S A
1 page  
Typical Applications
FIGURE 1 Solenoid Actuated Valve
TL H 9133 – 4
FIGURE 2 60A 3-Phase Mercury Displacement Relay
TL H 9133 – 5
Available from Germanium Power Devices Andover MA Tel (617) 475-5982
FIGURE 3 25A Switch with Short Circuit Foldback
TL H 9133 – 6
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet LM1951.PDF ] | |
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