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LM82CIMQA/NOPB PDF预览

LM82CIMQA/NOPB

更新时间： 2023-09-03 20:28:47
品牌 Logo 应用领域
德州仪器 - TI 温度传感输出元件传感器换能器温度传感器
页数 文件大小 规格书
28页 1104K
描述
具有 SMBus 和 I2C 接口的远程和本地温度传感器 | DBQ | 16 | -40 to 125

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LM82CIMQA/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：ActiveReach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：0.76
最大精度（摄氏度）：4 Cel主体宽度：3.9 mm
主体高度：1.72 mm主体长度或直径：4.89 mm
外壳：PLASTICJESD-609代码：e3
安装特点：SURFACE MOUNT位数：8
最大工作电流：0.8 mA最高工作温度：125 °C
最低工作温度：-40 °C输出接口类型：2-WIRE INTERFACE
封装主体材料：PLASTIC/EPOXY封装形状/形式：RECTANGULAR
传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL最大供电电压：3.6 V
最小供电电压：3 V表面贴装：YES
端子面层：Matte Tin (Sn)端接类型：SOLDER
Base Number Matches：1

LM82CIMQA/NOPB 数据手册

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LM82  
www.ti.com  
SNIS113D –JANUARY 2000–REVISED MARCH 2013  
LM82 Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface  
Check for Samples: LM82  
1
FEATURES  
DESCRIPTION  
The LM82 is a digital temperature sensor with a 2  
wire serial interface that senses the voltage and thus  
the temperature of a remote diode using a Delta-  
Sigma analog-to-digital converter with a digital over-  
temperature detector. The LM82 accurately senses  
its own temperature as well as the temperature of  
external devices, such as Pentium II Processors or  
diode connected 2N3904s. The temperature of any  
ASIC can be detected using the LM82 as long as a  
dedicated diode (semiconductor junction) is available  
on the die. Using the SMBus interface a host can  
access the LM82's registers at any time. Activation of  
a T_CRIT_A output occurs when any temperature is  
2
•
Accurately Senses Die Temperature of Remote  
ICs, or Diode Junctions  
•
•
On-board Local Temperature Sensing  
SMBus and I2C Compatible Interface, Supports  
SMBus 1.1 TIMEOUT  
•
•
•
Two Interrupt Outputs: INT and T_CRIT_A  
Register Readback Capability  
7 bit Plus Sign Temperature Data Format, 1°C  
Resolution  
•
2 Address Select Pins Allow Connection of 9  
LM82s on a Single Bus  
greater than  
a programmable comparator limit,  
T_CRIT. Activation of an INT output occurs when any  
temperature is greater than its corresponding  
programmable comparator HIGH limit.  
APPLICATIONS  
•
•
•
•
•
System Thermal Management  
Computers  
The host can program as well as read back the state  
of the T_CRIT register and the 2 T_HIGH registers.  
Three state logic inputs allow two pins (ADD0, ADD1)  
to select up to 9 SMBus address locations for the  
LM82. The sensor powers up with default thresholds  
of 127°C for T_CRIT and all T_HIGHs. The LM82 is  
pin for pin and register compatible with the LM84,  
Maxim MAX1617 and Analog Devices ADM1021.  
Electronic Test Equipment  
Office Electronics  
HVAC  
KEY SPECIFICATIONS  
•
•
•
Supply Voltage: 3.0 to 3.6V  
Supply Current: 0.8mA (max)  
Local Temp Accuracy (includes quantization  
error):  
–
0 to +85 ±3.0°C (max)  
•
Remote Diode Temp Accuracy (includes  
quantization error):  
–
–
+25°C to +100°C ±3°C (max)  
0°C to +125°C ±4°C (max)  
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.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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