LM50C National Semiconductor, LM50C Datasheet
LM50C
Manufacturer Part Number
LM50C
Description
(LM50B / LM50C) SOT-23 Single-Supply Centigrade Temperature Sensor
Manufacturer
National Semiconductor
Datasheet
1.LM50C.pdf
(8 pages)
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www.DataSheet4U.com
C 1996 National Semiconductor Corporation
LM50B LM50C
SOT-23 Single-Supply Centigrade Temperature Sensor
General Description
The LM50 is a precision integrated-circuit temperature sen-
sor that can sense a
using a single positive supply The LM50’s output voltage is
linearly proportional to Celsius (Centigrade) temperature
(
allows reading negative temperatures without the need for a
negative supply The ideal output voltage of the LM50
ranges from
temperature range The LM50 does not require any external
calibration or trimming to provide accuracies of
room temperature and
LM50 at the wafer level assure low cost and high accuracy
The LM50’s linear output
bration simplify circuitry required in a single supply environ-
ment where reading negative temperatures is required Be-
cause the LM50’s quiescent current is less than 130
self-heating is limited to a very low 0 2 C in still air
Applications
Y
Y
Connection Diagram
Typical Application
a
a
(JEDEC Registration TO-236AB)
125 C temperature range Trimming and calibration of the
Computers
Disk Drives
See NS Package Number M03B
10 mV C) and has a DC offset of
a
Top View
100 mV to
SOT-23
b
FIGURE 1 Full-Range Centigrade Temperature Sensor (
40 C to
g
a
a
TL H 12030–1
4 C over the full
500 mV offset and factory cali-
1 75V for a
TL H 12030
a
125 C temperature range
a
500 mV The offset
b
40 C to
b
LM50BIM3
LM50CIM3
LM50BIM3X
LM50CIM3X
g
40 C to
a
Number
Order
3 C at
125 C
A
Y
Y
Y
Y
Y
Y
Y
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Battery Management
Automotive
FAX Machines
Printers
Portable Medical Instruments
HVAC
Power Supply Modules
Calibrated directly in
Linear
Specified for full
Suitable for remote applications
Low cost due to wafer-level trimming
Operates from 4 5V to 10V
Less than 130 A current drain
Low self-heating less than 0 2 C in still air
Nonlinearity less than 0 8 C over temp
g
Device Marking
2 C accuracy guaranteed at
SOT-23
T5B
T5C
T5B
T5C
a
RRD-B30M76 Printed in U S A
10 0 mV C scale factor
b
b
40 C to
40 to
250 Units on Tape and Reel
250 Units on Tape and Reel
3000 Units on Tape and Reel
3000 Units on Tape and Reel
Celsius (Centigrade)
TL H 12030 – 3
a
a
125 C)
125 C range
Supplied As
a
25 C
http
www national com
June 1996
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