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LM45CIM3 PDF预览

LM45CIM3

更新时间: 2024-11-20 22:17:59
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
9页 218K
描述
SOT-23 Precision Centigrade Temperature Sensors

LM45CIM3 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:SOT-23, 3 PINReach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.25最大精度(摄氏度):4 Cel
主体宽度:1.3 mm主体高度:0.92 mm
主体长度或直径:2.92 mm外壳:PLASTIC
JESD-609代码:e0线性度(Cel):0.8 Cel
安装特点:SURFACE MOUNT端子数量:3
最高工作温度:100 °C最低工作温度:-20 °C
最大输出电压:1 V最小输出电压:-0.2 V
封装主体材料:PLASTIC/EPOXY封装等效代码:TO-236
封装形状/形式:RECTANGULAR电源:4/10 V
传感器/换能器类型:TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT子类别:Other Sensors
最大供电电压:10 V最小供电电压:4 V
表面贴装:YES技术:BIPOLAR
温度系数:POSITIVE ppm/ °C端子面层:Tin/Lead (Sn/Pb)
端接类型:SOLDER

LM45CIM3 数据手册

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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  
±
n
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, 20for 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  
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  
S
1
=
V
OUT  
V
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)  
© 1999 National Semiconductor Corporation  
DS011754  
www.national.com  

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