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LM19 PDF预览

LM19

更新时间: 2024-01-13 20:16:35
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
10页 241K
描述
2.4V, 10μA, TO-92 Temperature Sensor

LM19 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:SIP3,.1,50
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:0.88
Is Samacsys:N最大精度(摄氏度):3.8 Cel
主体宽度:3.87 mm主体高度:5.05 mm
主体长度或直径:4.95 mm外壳:PLASTIC
JESD-609代码:e3线性度(Cel):0.4 Cel
安装特点:THROUGH HOLE MOUNT端子数量:3
最大工作电流:0.01 mA最高工作温度:130 °C
最低工作温度:-55 °C最大输出电压:1.86 V
封装主体材料:PLASTIC/EPOXY封装等效代码:SIP3,.1,50
封装形状/形式:RECTANGULAR电源:2.5/5 V
标称 R0:160 Ω传感器/换能器类型:TEMPERATURE SENSOR,ANALOG,VOLTAGE OUTPUT
子类别:Other Sensors/Transducers最大供电电压:5.5 V
最小供电电压:2.4 V表面贴装:NO
技术:CMOS温度系数:NEGATIVE ppm/ °C
端子面层:Matte Tin (Sn)端接类型:SOLDER
Base Number Matches:1

LM19 数据手册

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October 2007  
LM19  
2.4V, 10μA, TO-92 Temperature Sensor  
FAX Machines  
General Description  
Printers  
The LM19 is a precision analog output CMOS integrated-cir-  
HVAC  
cuit temperature sensor that operates over a −55°C to +130°  
C temperature range. The power supply operating range is  
+2.4 V to +5.5 V. The transfer function of LM19 is predomi-  
nately linear, yet has a slight predictable parabolic curvature.  
The accuracy of the LM19 when specified to a parabolic  
transfer function is ±2.5°C at an ambient temperature of +30°  
C. The temperature error increases linearly and reaches a  
maximum of ±3.8°C at the temperature range extremes. The  
temperature range is affected by the power supply voltage. At  
a power supply voltage of 2.7 V to 5.5 V the temperature  
range extremes are +130°C and −55°C. Decreasing the pow-  
er supply voltage to 2.4 V changes the negative extreme to  
−30°C, while the positive remains at +130°C.  
Disk Drives  
Appliances  
Features  
Rated for full −55°C to +130°C range  
Available in a TO-92 package  
Predictable curvature error  
Suitable for remote applications  
UL Recognized Component  
Key Specifications  
■ꢀAccuracy at +30°C  
■ꢀAccuracy at +130°C & −55°C  
■ꢀPower Supply Voltage Range  
■ꢀCurrent Drain  
■ꢀNonlinearity  
■ꢀOutput Impedance  
■ꢀLoad Regulation  
0 μA < IL< +16 μA  
The LM19's quiescent current is less than 10 μA. Therefore,  
self-heating is less than 0.02°C in still air. Shutdown capability  
for the LM19 is intrinsic because its inherent low power con-  
sumption allows it to be powered directly from the output of  
many logic gates or does not necessitate shutdown at all.  
±2.5 °C (max)  
±3.5 to ±3.8 °C (max)  
+2.4V to +5.5V  
10 μA (max)  
±0.4 % (typ)  
160 Ω (max)  
Applications  
Cellular Phones  
Computers  
Power Supply Modules  
−2.5 mV (max)  
Battery Management  
Typical Application  
Output Voltage vs Temperature  
20004002  
VO = (−3.88×10−6×T2) + (−1.15×10−2×T) + 1.8639  
or  
20004024  
where:  
T is temperature, and VO is the measured output voltage of the LM19.  
FIGURE 1. Full-Range Celsius (Centigrade) Temperature Sensor (−55°C to +130°C)  
Operating from a Single Li-Ion Battery Cell  
© 2007 National Semiconductor Corporation  
200040  
www.national.com  

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