TLH12030

June 1996

LM50BLM50C

SOT-23 Single-Supply Centigrade Temperature Sensor

General Description

The LM50 is a precision integrated-circuit temperature sen-

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

temperature range The LM50 does not require any external

a

125 C temperature range Trimming and calibration of the

LM50 at the wafer level assure low cost and high accuracy

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 mA

self-heating is limited to a very low 02 C in still air

Applications

Y

Computers

Y

Disk Drives

Y

Battery Management

Y

Automotive

Y

FAX Machines

Y

Printers

Y

Portable Medical Instruments

Y

HVAC

Y

Power Supply Modules

Features

Y

Calibrated directly in

Celsius (Centigrade)

Y

Y

g

Y

Y

Suitable for remote applications

Y

Low cost due to wafer-level trimming

Y

Operates from 45V to 10V

Y

Less than 130 mA current drain

Y

Low self-heating less than 02 C in still air

Y

Nonlinearity less than 08 C over temp

Connection Diagram

SOT-23

TLH12030 – 1

Top View

See NS Package Number M03B

(JEDEC Registration TO-236AB)

Order

SOT-23

Supplied As

Number

Device Marking

LM50BIM3

T5B

250 Units on Tape and Reel

LM50CIM3

T5C

250 Units on Tape and Reel

LM50BIM3X

T5B

3000 Units on Tape and Reel

LM50CIM3X

T5C

3000 Units on Tape and Reel

Typical Application

TLH12030 – 3

C1996 National Semiconductor Corporation

RRD-B30M76Printed in U S A

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