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LM90CIMMX

更新时间： 2024-01-01 17:33:49
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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LM90CIMMX 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：TSSOP8,.19
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.24最大精度（摄氏度）：3 Cel
主体宽度：3 mm主体高度：1.1 mm
主体长度或直径：3 mm外壳：PLASTIC
JESD-609代码：e3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：85 °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/Transducers
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：Matte Tin (Sn)端接类型：SOLDER
Base Number Matches：1

LM90CIMMX 数据手册

 浏览型号LM90CIMMX的Datasheet PDF文件第2页浏览型号LM90CIMMX的Datasheet PDF文件第3页浏览型号LM90CIMMX的Datasheet PDF文件第4页浏览型号LM90CIMMX的Datasheet PDF文件第5页浏览型号LM90CIMMX的Datasheet PDF文件第6页浏览型号LM90CIMMX的Datasheet PDF文件第7页 
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  
register to allow measuring other diodes without  
requiring continuous software management. Contact  
j
j
j
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.  
±
TA=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.  
j
Remote Diode Temp Accuracy (includes quantization  
error)  
TA=30˚C to 50˚C, TD=60˚C to 100˚C  
TA=0˚C to 85˚C, TD=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.  
© 2002 National Semiconductor Corporation  
DS200337  
www.national.com  
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 		1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5V, PDSO8, 0.150 INCH, PLASTIC, SOP-8
LM9140AXZ-10.0 TI

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 		1-OUTPUT TWO TERM VOLTAGE REFERENCE, 10V, PBCY3, PLASTIC, TO-92, 3 PIN
LM9140AXZ-4.1 TI

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 		1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096V, PBCY3, PLASTIC, TO-92, 3 PIN
LM9140AXZ-5.0 TI

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 		1-OUTPUT TWO TERM VOLTAGE REFERENCE, 5V, PBCY3, PLASTIC, TO-92, 3 PIN
LM9140AYM-4.1 TI

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 		1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096V, PDSO8, 0.150 INCH, PLASTIC, SOP-8

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