LM45BIM3

更新时间： 2024-11-20 22:17:51

品牌	Logo	应用领域
美国国家半导体 - NSC		传感器换能器温度传感器输出元件
页数	文件大小	规格书
9页	218K
描述
SOT-23 Precision Centigrade Temperature Sensors

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中文翻译

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数据手册
替代型号

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LM45BIM3 数据手册

July 1999

LM45

SOT-23 Precision Centigrade Temperature Sensors

n Portable Medical Instruments

n HVAC

The LM45 series are precision integrated-circuit temperature

n Power Supply Modules

General Description

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-

n Disk Drives

n Computers

n Automotive

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 im-

pedance, 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.

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

Applications

n Battery Management

n FAX Machines

n Printers

n Nonlinearity only 0.8˚C max over temp

n Low impedance output, 20Ω for 1 mA load

Connection Diagram

SOT-23

Order

Device

Marking

T4B

SOT-23

Number

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

DS011754-1

Top View

See NS Package Number MA03B

Typical Applications

DS011754-3

DS011754-4

FIGURE 1. Basic Centigrade Temperature

Sensor (+2.5˚C to +100˚C)

Choose R

−V /50 µA

OUT

(10 mV/˚C x Temp ˚C)

+1,000 mV at +100˚C

+250 mV at +25˚C

−200 mV at −20˚C

FIGURE 2. Full-Range Centigrade

Temperature Sensor (−20˚C to +100˚C)

DS011754

www.national.com

12 3 4 5 6 7...9

中文翻译

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LM45BIM3 替代型号

型号	品牌	替代类型	描述	数据表
LM50CIM3/NOPB	TI	功能相似	±2°C analog output temperature sensor, with 10mV/°C gain 3-SOT-
TC1047AVNBTR	MICROCHIP	功能相似	Precision Temperature-to-Voltage Converter
TMP36GRTZ-REEL7	ADI	功能相似	Low Voltage Temperature Sensors

与LM45BIM3相关器件

型号	品牌	获取价格	描述	数据表
LM45BIM3/NOPB	TI	获取价格	具有 10mV/°C 增益的 ±3°C 模拟输出温度传感器 \| DBZ \| 3 \| -20
LM45BIM3X	NSC	获取价格	SOT-23 Precision Centigrade Temperature Sensors
LM45BIM3X/NOPB	TI	获取价格	具有 10mV/°C 增益的 ±3°C 模拟输出温度传感器 \| DBZ \| 3 \| -20
LM45BIMWA	NSC	获取价格	Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, -.2-1V, 3Cel, WAFER
LM45C	NSC	获取价格	SOT-23 Precision Centigrade Temperature Sensors
LM45CIM3	NSC	获取价格	SOT-23 Precision Centigrade Temperature Sensors
LM45CIM3/NOPB	TI	获取价格	具有 10mV/°C 增益的 ±3°C 模拟输出温度传感器 \| DBZ \| 3 \| -20
LM45CIM3X	NSC	获取价格	SOT-23 Precision Centigrade Temperature Sensors
LM45CIM3X/NOPB	NSC	获取价格	Analog Temperature Sensor, ANALOG TEMP SENSOR-VOLTAGE, -.2-1V, 4Cel, RECTANGULAR, SURFACE
LM45CIM3X/NOPB	TI	获取价格	具有 10mV/°C 增益的 ±3°C 模拟输出温度传感器 \| DBZ \| 3 \| -20

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