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LM86

更新时间： 2024-09-14 12:27:39
品牌 Logo 应用领域
德州仪器 - TI 二极管传感器温度传感器
页数 文件大小 规格书
33页 1239K
描述
±0.75°C Accurate, Remote Diode and Local Digital Temperature Sensor With Two-Wire Interface

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LM86 数据手册

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LM86  
www.ti.com  
SNIS114E –DECEMBER 2001–REVISED MARCH 2013  
±0.75°C Accurate, Remote Diode and Local Digital Temperature Sensor With Two-Wire  
Interface  
Check for Samples: LM86  
1
FEATURES  
DESCRIPTION  
The LM86 is an 11-bit digital temperature sensor with  
a 2-wire System Management Bus (SMBus) serial  
interface. The LM86 accurately measures its own  
temperature as well as the temperature of an external  
device, such as processor thermal diode or diode  
connected transistor such as the 2N3904. The  
temperature of any ASIC can be accurately  
determined using the LM86 as long as a dedicated  
diode (semiconductor junction) is available on the  
target die. The LM86 remote sensor accuracy of  
±0.75°C is factory trimmed for the 1.008 typical  
nonideality factor of the mobile Pentium™ III thermal  
diode. The LM86 has an Offset register to allow  
measuring other diodes without requiring continuous  
23  
•
Accurately Senses Die Temperature of Remote  
ICs or Diode Junctions  
•
Offset Register Allows Sensing a Variety of  
Thermal Diodes Accurately  
•
•
On-Board Local Temperature Sensing  
10-Bit Plus Sign Remote Diode Temperature  
Data Format, 0.125°C Resolution  
•
•
•
T_CRIT_A Output Useful for System Shutdown  
ALERT Output Supports SMBus 2.0 Protocol  
SMBus 2.0 Compatible Interface, Supports  
TIMEOUT  
•
8-Pin VSSOP and SOIC Packages  
software  
management.  
Contact  
hardware.monitor.team@nsc.com to obtain the latest  
data for new processors.  
APPLICATIONS  
•
Computer System Thermal Management  
(For Example, Laptop, Desktop, Workstations,  
Server)  
Activation of the ALERT output occurs when any  
temperature goes outside a preprogrammed window  
set by the HIGH and LOW temperature limit registers  
or exceeds the T_CRIT temperature limit. Activation  
of the T_CRIT_A occurs when any temperature  
exceeds the T_CRIT programmed limit. The LM86 is  
pin and register compatible with the the Analog  
Devices ADM1032 and Maxim MAX6657/8.  
•
•
Electronic Test Equipment  
Office Electronics  
KEY SPECIFICATIONS  
•
•
•
Supply Voltage 3.0V to 3.6V  
Supply Current 0.8mA (typ)  
Local Temp Accuracy (includes quantization  
error)  
–
TA=25°C to 125°C, ±3.0°C (max)  
•
Remote Diode Temp Accuracy (includes  
quantization error)  
–
–
TA=30°C, TD=80°C, ±0.75°C (max)  
TA=30°C to 50°C, TD=60°C to 100°C, ±1.0°C  
(max)  
–
TA=0°C to 85°C, TD=25°C to 125°C, ±3.0°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
3
Pentium is a trademark of Intel Corporation..  
All other 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 © 2001–2013, Texas Instruments Incorporated  
1234567...33

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