LM82CIMQAX

更新时间： 2024-02-29 22:17:01

品牌	Logo	应用领域
美国国家半导体 - NSC		二极管传感器换能器温度传感器输出元件
页数	文件大小	规格书
17页	345K
描述
Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface

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技术参数
数据手册

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LM82CIMQAX 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	0.77	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：	PLASTIC
JESD-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

LM82CIMQAX 数据手册

January 2000

LM82

Remote Diode and Local Digital Temperature Sensor

with Two-Wire Interface

n On-board local temperature sensing

General Description

n SMBus and I²C compatible interface, supports

The LM82 is a digital temperature sensor with a 2 wire serial

SMBus 1.1 TIMEOUT

interface that senses the voltage and thus the temperature of

n Two interrupt outputs: INT and T_CRIT_A

a remote diode using a Delta-Sigma analog-to-digital con-

verter with a digital over-temperature detector. The LM82 ac-

curately senses its own temperature as well as the tempera-

n Register readback capability

n 7 bit plus sign temperature data format, 1 ˚C resolution

ture 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 di-

ode (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 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.

n 2 address select pins allow connection of 9 LM82s on a

single bus

Key Specifications

Supply Voltage

Supply Current

3.0V to 3.6V

0.8mA (max)

Local Temp Accuracy (includes quantization error)

0˚C to +85˚C

3.0˚C (max)

Remote Diode Temp Accuracy (includes quantization

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.

error)

+25˚C to +100˚C

0˚C to +125˚C

3˚C (max)

4˚C (max)

Applications

n System Thermal Management

n Computers

Features

n Electronic Test Equipment

n Office Electronics

n HVAC

n Accurately senses die temperature of remote ICs, or

diode junctions

Simplified Block Diagram

DS101297-1

™

SMBus is a trademark of the Intel Corporation.

Pentium II^®is a registered trademark of the Intel Corporation.

C^®is a registered trademark of the Philips Corporation.

DS101297

www.national.com

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中文翻译

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与LM82CIMQAX相关器件

型号	品牌	获取价格	描述	数据表
LM82CIMQAX/NOPB	TI	获取价格	具有 SMBus 和 I2C 接口的远程和本地温度传感器 \| DBQ \| 16 \| -40
LM83	NSC	获取价格	Triple-Diode Input and Local Digital Temperature Sensor with Two-Wire Interface
LM83	TI	获取价格	具有 SMBus 和 I2C 接口且兼容 ACPI 的三路远程和本地温度传感器
LM8300	TI	获取价格	LM8300/LM8500 Four Wire Resistive Touchscreen Controller with Brownout
LM8300	NSC	获取价格	Four Wire Resistive Touchscreen Controller with Brownout
LM8300HLQ9	NSC	获取价格	Four Wire Resistive Touchscreen Controller with Brownout
LM8300HLQ9/NOPB	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, QCC44, LLP-44
LM8300HMT9	NSC	获取价格	Four Wire Resistive Touchscreen Controller with Brownout
LM8300HVA9	NSC	获取价格	Four Wire Resistive Touchscreen Controller with Brownout
LM8300HVA9/NOPB	TI	获取价格	SPECIALTY CONSUMER CIRCUIT, PQCC44, PLASTIC, LCC-44

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