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參數資料
| 型號： | LM1950T |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 外設及接口 |
| 英文描述： | 750 mA High Side Switch |
| 中文描述： | 2 A BUF OR INV BASED PRPHL DRVR, PSFM5 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 168K |
| 代理商： | LM1950T |
TL/H/11237
L
December 1991
LM1950 750 mA High Side Switch
General Description
The LM1950 is a high current, high side (PNP) power switch
for driving ground referenced loads. Intended for industrial
and automotive applications the LM1950 is guaranteed to
deliver 750 mA continuous load current (with typically 1.4
Amps peak) and can withstand supply voltage transients up
to
a
60V and
b
50V. When switched OFF the quiescent
current drain from the input power supply is less than
100
m
A which can allow continuous connection to a battery
power source.
The LM1950 will drive all types of resistive or reactive loads.
To obtain a rapid decay time of the energy in inductive
loads, the output is internally protected but not clamped and
can swing below ground to at least 54V negative with re-
spect to the input power supply voltage.
The ON/OFF input can be driven with standard 5V TTL or
CMOS compatible logic levels independent of the V
CC
sup-
ply voltage used. Built in protection features include short
circuit protection, thermal shutdown, over-voltage shutdown
to protect load circuits and protection against reverse polari-
ty input connections. The LM1950 is available in a 5-lead
power TO-220 package and specified over a wide
b
40
§
C to
125
§
C operating temperature range.
Features
Y
750 mA continuous output drive current
Y
Less than 100
m
A quiescent current in OFF state
Y
Low input/output voltage drop
Y
a
60V/
b
50V transient protection
Y
Drives resistive or reactive loads
Y
Unclamped output for fast inductive decay tmies
Y
Reverse battery protected
Y
Short circuit proof
Y
Overvoltage shutdown to protect loads
Y
TTL/CMOS compatible control input
Y
Thermal overload protection
Applications
Y
Relay driver
Y
Solenoid/Valve driver
Y
Lamp driver
Y
Load circuit switching
Y
Motor driver
Typical Application
TL/H/11237–1
*
Required for stability
Connection Diagram
TO 220, 5 Lead
TL/H/11237–2
Front View
Order Number LM1950T
See NS Package Number T05A
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM1951 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM1951 Solid State 1 Amp Switch |
| LM1951T | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM1951 Solid State 1 Amp Switch |
| LM195H | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ultra Reliable Power Transistors |
| LM195H WAF | 制造商:Texas Instruments 功能描述: |
| LM195H/883 | 制造商:Texas Instruments 功能描述:Trans GP BJT NPN 42V 3-Pin TO-39 Tray |
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