LM86

更新时间： 2024-11-01 22:47:03

品牌	Logo	应用领域
美国国家半导体 - NSC		二极管传感器温度传感器
页数	文件大小	规格书
21页	408K
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

April 2003

LM86

0.75˚C Accurate, Remote Diode and Local Digital

Temperature Sensor with Two-Wire Interface

n On-board local temperature sensing

n 10 bit plus sign remote diode temperature data format,

0.125 ˚C resolution

n T_CRIT_A output useful for system shutdown

n ALERT output supports SMBus 2.0 protocol

n SMBus 2.0 compatible interface, supports TIMEOUT

n 8-pin MSOP and SOIC packages

General 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 non-ideality factor of the mobile Pen-

Key Specifications

Supply Voltage

3.0V to 3.6V

0.8mA (typ)

™

tium

III thermal diode. The LM86 has an Offset

Supply Current

requiring continuous software management. Contact

Local Temp Accuracy (includes quantization error)

T_A=25˚C to 125˚C

3.0˚C (max)

hardware.monitor.team nsc.com to obtain the latest data for

new processors.

Remote Diode Temp Accuracy (includes quantization

Activation of the ALERT output occurs when any tempera-

ture 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.

error)

T_A=30˚C, T_D=80˚C

0.75˚C (max)

1.0˚C (max)

3.0˚C (max)

T_A=30˚C to 50˚C, T_D=60˚C to 100˚C

T_A=0˚C to 85˚C, T_D=25˚C to 125˚C

Applications

n Computer System Thermal Management

Features

(e.g. Laptop, Desktop, Workstations, Server)

n Accurately senses die temperature of remote ICs or

diode junctions

n Electronic Test Equipment

n Office Electronics

n Offset register allows sensing a variety of thermal

diodes accurately

Simplified Block Diagram

10130301

™

Pentium is a trademark of Intel Corporation.

DS101303

www.national.com

12 3 4 5 6 7...21

中文翻译

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与LM86相关器件

型号	品牌	获取价格	描述	数据表
LM86BIMQX	NSC	获取价格	IC SPECIALTY ANALOG CIRCUIT, PDSO24, QSOP-24, Analog IC:Other
LM86CIM	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di
LM86CIM	NSC	获取价格	【0.75∑C Accurate, Remote Diode and Local Digi
LM86CIM/NOPB	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di
LM86CIMM	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di
LM86CIMM	NSC	获取价格	【0.75∑C Accurate, Remote Diode and Local Digi
LM86CIMM/NOPB	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di
LM86CIMMX	NSC	获取价格	【0.75∑C Accurate, Remote Diode and Local Digi
LM86CIMMX	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di
LM86CIMMX/NOPB	TI	获取价格	Â±0.75Â°C Accurate, Remote Diode and Local Di

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