Datasheet > LM50

LM50

更新时间： 2024-11-27 22:31:11

品牌	Logo	应用领域
美国国家半导体 - NSC		传感器温度传感器电路保护
页数	文件大小	规格书
7页	179K
描述
SOT-23 Single-Supply Centigrade Temperature Sensor

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中文翻译

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LM50 数据手册

July 1999

LM50

SOT-23 Single-Supply Centigrade Temperature Sensor

General Description

Applications

n Computers

n Disk Drives

n Battery Management

n Automotive

n FAX Machines

n Printers

n Portable Medical Instruments

n HVAC

n Power Supply Modules

The LM50 is a precision integrated-circuit temperature sen-

sor that can sense a −40˚C to +125˚C temperature range us-

ing a single positive supply. The LM50’s output voltage is lin-

early proportional to Celsius (Centigrade) temperature

(+10 mV/˚C) and has a DC offset of +500 mV. The offset al-

lows reading negative temperatures without the need for a

negative supply. The ideal output voltage of the LM50 ranges

from +100 mV to +1.75V for a −40˚C to +125˚C temperature

range. The LM50 does not require any external calibration or

trimming to provide accuracies of 3˚C at room temperature

and 4˚C over the full −40˚C to +125˚C temperature range.

Trimming and calibration of the LM50 at the wafer level as-

sure low cost and high accuracy. The LM50’s linear output,

+500 mV offset, and factory calibration simplify circuitry re-

quired in a single supply environment where reading nega-

tive temperatures is required. Because the LM50’s quiescent

current is less than 130 µA, self-heating is limited to a very

low 0.2˚C in still air.

Features

n Calibrated directly in degree Celsius (Centigrade)

n Linear + 10.0 mV/˚C scale factor

2˚C accuracy guaranteed at +25˚C

n Specified for full −40˚ to +125˚C range

n Suitable for remote applications

n Low cost due to wafer-level trimming

n Operates from 4.5V to 10V

n Less than 130 µA current drain

n Low self-heating, less than 0.2˚C in still air

n Nonlinearity less than 0.8˚C over temp

Connection Diagram

Order

Number

SOT-23

Device Marking

T5B

Supplied As

SOT-23

LM50BIM3

1000 Units on Tape

and Reel

LM50CIM3

LM50BIM3X

LM50CIM3X

T5C

T5B

T5C

1000 Units on Tape

and Reel

DS012030-1

3000 Units on Tape

and Reel

Top View

See NS Package Number MA03B

3000 Units on Tape

and Reel

Typical Application

DS012030-3

FIGURE 1. Full-Range Centigrade Temperature Sensor (−40˚C to +125˚C)

DS012030

www.national.com

12 3 4 5 6 7

中文翻译

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LM50 替代型号

型号	品牌	替代类型	描述	数据表
LM61CIM3/NOPB	TI	功能相似	LM61 2.7V, SOT-23 or TO-92 Temperature Sensor
TC1047AVNBTR	MICROCHIP	功能相似	Precision Temperature-to-Voltage Converter
TMP36GRTZ-REEL7	ADI	功能相似	Low Voltage Temperature Sensors

与LM50相关器件

型号	品牌	获取价格	描述	数据表
LM50_06	NSC	获取价格	SOT-23 Single-Supply Centigrade Temperature Sensor
LM5000	NSC	获取价格	High Voltage Switch Mode Regulator
LM5000	TI	获取价格	High Voltage Switch Mode Regulator
LM5000_07	NSC	获取价格	High Voltage Switch Mode Regulator
LM5000_15	TI	获取价格	High Voltage Switch Mode Regulator
LM5000-3MTC	NSC	获取价格	High Voltage Switch Mode Regulator
LM5000-3MTC	TI	获取价格	High Voltage Switch Mode Regulator
LM5000-3MTC/NOPB	TI	获取价格	High Voltage Switch Mode Regulator
LM5000-3MTCEP	NSC	获取价格	High Voltage Switch Mode Regulator
LM5000-3MTCX	NSC	获取价格	High Voltage Switch Mode Regulator

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