Datasheet > LM45

LM45

更新时间： 2024-11-11 05:42:23

品牌	Logo	应用领域
美国国家半导体 - NSC		传感器温度传感器
页数	文件大小	规格书
11页	651K
描述
SOT-23 Precision Centigrade Temperature Sensors

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数据手册

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LM45 数据手册

August 2005

LM45

SOT-23 Precision Centigrade Temperature Sensors

General Description

Applications

n Battery Management

n FAX Machines

n Printers

n Portable Medical Instruments

n HVAC

n Power Supply Modules

n Disk Drives

n Computers

The LM45 series are precision integrated-circuit temperature

sensors, whose output voltage is linearly proportional to the

Celsius (Centigrade) temperature. The LM45 does not re-

quire any external calibration or trimming to provide accura-

cies of 2˚C at room temperature and 3˚C over a full −20 to

+100˚C temperature range. Low cost is assured by trimming

and calibration at the wafer level. The LM45’s low output

impedance, linear output, and precise inherent calibration

make interfacing to readout or control circuitry especially

easy. It can be used with a single power supply, or with plus

and minus supplies. As it draws only 120 µA from its supply,

it has very low self-heating, less than 0.2˚C in still air. The

LM45 is rated to operate over a −20˚ to +100˚C temperature

range.

n Automotive

Features

n Calibrated directly in ˚ Celsius (Centigrade)

n Linear + 10.0 mV/˚C scale factor

3˚C accuracy guaranteed

n Rated for full −20˚ to +100˚C range

n Suitable for remote applications

n Low cost due to wafer-level trimming

n Operates from 4.0V to 10V

n Less than 120 µA current drain

n Low self-heating, 0.20˚C in still air

n Nonlinearity only 0.8˚C max over temp

n Low impedance output, 20Ω for 1 mA load

Connection Diagram

SOT-23

01175401

Top View

See NS Package Number mf03a

Order

Number

Device

Top Mark

T4B

Supplied As

LM45BIM3

LM45BIM3X

LM45CIM3

LM45CIM3X

1000 Units on Tape and Reel

3000 Units on Tape and Reel

1000 Units on Tape and Reel

3000 Units on Tape and Reel

T4B

T4C

DS011754

www.national.com

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中文翻译

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