LM90CIMM

更新时间： 2024-11-25 22:47:03

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
20页	385K
描述
3 Degree Celcious Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface

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中文翻译

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技术参数
数据手册
替代型号

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LM90CIMM 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	PLASTIC, MSOP-8	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.22	Is Samacsys：	N
最大精度（摄氏度）：	4 Cel	主体宽度：	3 mm
主体高度：	1 mm	主体长度或直径：	3 mm
外壳：	PLASTIC	JESD-609代码：	e0
安装特点：	SURFACE MOUNT	位数：	11
端子数量：	8	最大工作电流：	0.8 mA
最高工作温度：	125 °C	最低工作温度：
输出接口类型：	2-WIRE INTERFACE	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	TSSOP8,.19	封装形状/形式：	SQUARE
电源：	3.3 V	传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别：	Other Sensors	最大供电电压：	3.6 V
最小供电电压：	3 V	表面贴装：	YES
温度系数：	NEGATIVE/POSITIVE ppm/ °C	端子面层：	Tin/Lead (Sn/Pb)
端接类型：	SOLDER	Base Number Matches：	1

LM90CIMM 数据手册

February 2002

LM90

3˚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 Diode fault detection circuitry

n T_CRIT_A output useful for system shutdown (open

diode does not activate T_CRIT_A)

n ALERT output supports SMBus 2.0 protocol

n SMBus 2.0 compatible interface, supports TIMEOUT

n 8-pin MSOP packages

General Description

The LM90 is an 11-bit digital temperature sensor with a

2-wire System Management Bus (SMBus) serial interface.

The LM90 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 LM90 as long as a dedicated diode

(semiconductor junction) is available on the target die. The

LM90 remote sensor accuracy of 3˚C is factory trimmed for

™

the 1.008 typical non-ideality factor of the mobile Pentium

Key Specifications

III thermal diode. The LM90 has an Offset

requiring continuous software management. Contact

Supply Voltage

Supply Current

3.0V to 3.6V

0.8mA (typ)

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

Local Temp Accuracy (includes quantization error)

new processors.

T_A=25˚C to 125˚C

4.0˚C (max)

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 LM90 is pin and register compatible with the LM86,

Analog Devices ADM1032 and Maxim MAX6657/8.

Remote Diode Temp Accuracy (includes quantization

error)

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

3.0˚C (max)

4.0˚C (max)

Applications

Features

n System Thermal Management

n Accurately senses die temperature of remote ICs or

diode junctions

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

n Electronic Test Equipment

n Office Electronics

n Offset register allows sensing a variety of thermal

diodes accurately

LM90 Simplified Block Diagram

20033701

™

Pentium is a trademark of Intel Corporation.

DS200337

www.national.com

12 3 4 5 6 7...20

中文翻译

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LM90CIMM 替代型号

型号	品牌	替代类型	描述	数据表
LM90CIMM/NOPB	TI	功能相似	具有 SMBus 接口的远程和本地温度传感器 \| DGK \| 8 \| 0 to 125

与LM90CIMM相关器件

型号	品牌	获取价格	描述	数据表
LM90CIMM/NOPB	TI	获取价格	具有 SMBus 接口的远程和本地温度传感器 \| DGK \| 8 \| 0 to 125
LM90CIMMX	NSC	获取价格	3 Degree Celcious Accurate, Remote Diode and Local Digital Temperature Sensor with Two-Wir
LM90CIMMX/NOPB	TI	获取价格	具有 SMBus 接口的远程和本地温度传感器 \| DGK \| 8 \| 0 to 125
LM91	OKI	获取价格	Diode Input Digital Temperature Sensor with Two-Wire Interface
LM9140	NSC	获取价格	Precision Micropower Shunt Voltage Reference
LM9140AXM-2.5	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, PDSO8, 0.150 INCH, PLASTIC, SOP-8
LM9140AXM-4.1	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096V, PDSO8, 0.150 INCH, PLASTIC, SOP-8
LM9140AXM-5.0	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5V, PDSO8, 0.150 INCH, PLASTIC, SOP-8
LM9140AXZ-10.0	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 10V, PBCY3, PLASTIC, TO-92, 3 PIN
LM9140AXZ-4.1	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096V, PBCY3, PLASTIC, TO-92, 3 PIN

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