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LM50-Q1_14

更新时间： 2024-11-10 02:58:51
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德州仪器 - TI /
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SOT-23 Single-Supply Centigrade Temperature Sensor

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LM50-Q1_14 数据手册

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LM50, LM50-Q1  
SNIS118E –JULY 1999–REVISED SEPTEMBER 2013  
LM50/LM50-Q1 SOT-23 Single-Supply Centigrade Temperature Sensor  
Check for Samples: LM50, LM50-Q1  
1
FEATURES  
DESCRIPTION  
The LM50/LM50-Q1 is a precision integrated-circuit  
temperature sensor that can sense a −40°C to  
+125°C temperature range using a single positive  
supply. The LM50/LM50-Q1's output voltage is  
linearly proportional to Celsius (Centigrade)  
temperature (+10 mV/°C) and has a DC offset of  
+500 mV. The offset allows reading negative  
temperatures without the need for a negative supply.  
The ideal output voltage of the LM50/LM50-Q1  
ranges from +100 mV to +1.75V for a −40°C to  
+125°C temperature range. The LM50/LM50-Q1 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/LM50-  
Q1 at the wafer level assure low cost and high  
accuracy. The LM50/LM50-Q1's linear output, +500  
mV offset, and factory calibration simplify circuitry  
required in a single supply environment where  
reading negative temperatures is required. Because  
the LM50/LM50-Q1's quiescent current is less than  
130 μA, self-heating is limited to a very low 0.2°C in  
still air.  
2
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Calibrated Directly in Degree Celsius  
(Centigrade)  
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Linear + 10.0 mV/°C Scale Factor  
±2°C Accuracy Specified at +25°C  
Specified for Full −40° to +125°C range  
Suitable for Remote Applications  
Low Cost Due to Wafer-level Trimming  
Operates from 4.5V to 10V  
Less than 130 μA Current Drain  
Low Self-heating, Less than 0.2°C in Still Air  
Nonlinearity Less than 0.8°C Over Temp  
LM50Q is AEC-Q100 Grade 1 qualified and is  
manufactured on an Automotive Grade flow.  
•
UL Recognized Component  
APPLICATIONS  
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Automotive  
Computers  
Disk Drives  
Battery Management  
Automotive  
FAX Machines  
Printers  
Portable Medical Instruments  
HVAC  
Figure 1. SOT-23 Pin Out  
Top View  
See Package Number DBZ0003A  
Power Supply Modules  
Figure 2. Full-Range Centigrade Temperature  
Sensor Application (−40°C to +125°C)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard  
warranty. Production processing does not necessarily include testing of all parameters.  
 
 
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