LM1950T National Semiconductor, LM1950T Datasheet

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LM1950T

Manufacturer Part Number
LM1950T
Description
IC SWITCH 750MA HI SIDE TO220-5
Manufacturer
National Semiconductor
Type
High Side Switchr
Datasheet

Specifications of LM1950T

Number Of Outputs
1
Internal Switch(s)
Yes
Current Limit
750mA
Voltage - Input
4.75 ~ 26 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-5
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Rds (on)
-
Other names
*LM1950T

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM1950T
Manufacturer:
FSC
Quantity:
20 000
C 1995 National Semiconductor Corporation
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
current drain from the input power supply is less than
100 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
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
125 C operating temperature range
Typical Application
Connection Diagram
a
60V and
b
50V When switched OFF the quiescent
TL H 11237
See NS Package Number T05A
Order Number LM1950T
b
CC
40 C to
TO 220 5 Lead
sup-
Front View
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Applications
Y
Y
Y
Y
Y
750 mA continuous output drive current
Less than 100 A quiescent current in OFF state
Low input output voltage drop
Drives resistive or reactive loads
Unclamped output for fast inductive decay tmies
Reverse battery protected
Short circuit proof
Overvoltage shutdown to protect loads
TTL CMOS compatible control input
Thermal overload protection
Relay driver
Solenoid Valve driver
Lamp driver
Load circuit switching
Motor driver
a
60V
b
50V transient protection
TL H 11237 – 2
Required for stability
RRD-B30M115 Printed in U S A
December 1991
TL H 11237 – 1

Related parts for LM1950T

LM1950T Summary of contents

Page 1

... Thermal overload protection Y Applications Relay driver Y sup- Solenoid Valve driver Y CC Lamp driver Y Load circuit switching Y Motor driver 220 5 Lead Front View Order Number LM1950T See NS Package Number T05A December 1991 TL H 11237 – 1 Required for stability TL H 11237 – 2 RRD-B30M115 Printed ...

Page 2

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Continuous Transient ( 100 ms) s Reverse Polarity (continuous) On Off Voltage b Power Dissipation Internally Limited Load Inductance Maximum Junction Temperature ...

Page 3

Typical Performance Characteristics Output Voltage Peak Output Current ON OFF Input Current vs ON OFF Input Voltage Turn-On Delay Time vs Temperature TL H 11237–11 Output Voltage Drop Output Voltage Drop vs Temperature vs Output Current Operating ...

Page 4

Application Hints HIGH CURRENT OUTPUT The 750 mA output is fault protected against overvoltage If the supply voltage rises above approximately 30V the out- put will automatically shut down This protects the internal circuitry and enables the IC to survive ...

Page 5

Circuit Schematic 5 ...

Page 6

... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number LM1950T NS Package Number T05A 2 A critical component is any component of a life ...

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