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LM95241CIMMX-1

更新时间： 2024-11-24 03:51:39
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
19页 718K
描述
Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)

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LM95241CIMMX-1 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：MO-187, MSOP-8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.49JESD-609代码：e0
安装特点：SURFACE MOUNT端子数量：8
最高工作温度：85 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装等效代码：TSSOP8,.19
封装形状/形式：RECTANGULAR电源：3.3 V
传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,DUAL TRIP POINT子类别：Other Sensors
表面贴装：YES端子面层：Tin/Lead (Sn/Pb)
Base Number Matches：1

LM95241CIMMX-1 数据手册

 浏览型号LM95241CIMMX-1的Datasheet PDF文件第2页浏览型号LM95241CIMMX-1的Datasheet PDF文件第3页浏览型号LM95241CIMMX-1的Datasheet PDF文件第4页浏览型号LM95241CIMMX-1的Datasheet PDF文件第5页浏览型号LM95241CIMMX-1的Datasheet PDF文件第6页浏览型号LM95241CIMMX-1的Datasheet PDF文件第7页 
September 2006  
LM95241  
Dual Remote Diode Temperature Sensor with SMBus  
™
Interface and TruTherm Technology (65nm/90nm)  
n Remote temperature readings without digital filtering:  
General Description  
— 0.125 ˚C LSb  
The LM95241 is a precision dual remote diode temperature  
— 10-bits plus sign or 11-bits programmable resolution  
sensor (RDTS) that uses National’s TruTherm technology.  
— 11-bits resolves temperatures above 127 ˚C  
The 2-wire serial interface of the LM95241 is compatible with  
SMBus 2.0. The LM95241 can sense three temperature  
n Remote temperature readings with digital filtering:  
— 0.03125 ˚C LSb with filtering  
zones, it can measure the temperature of its own die as well  
— 12-bits plus sign or 13-bits programmable resolution  
as two diode connected transistors. The LM95241 includes  
— 13-bits resolves temperatures above 127 ˚C  
digital filtering and an advanced input stage that includes  
n Local temperature readings:  
analog filtering and TruTherm technology that reduces  
— 0.25 ˚C  
processor-to-processor non-ideality spread. The diode con-  
— 9-bits plus sign  
nected transistors can be a “thermal diode” as found in Intel  
and AMD processors or can simply be a diode connected  
n Status register support  
n Programmable conversion rate allows user optimization  
of power consumption  
n Shutdown mode one-shot conversion control  
n SMBus 2.0 compatible interface, supports TIMEOUT  
n 8-pin MSOP package  
MMBT3904 transistor. TruTherm technology allows accurate  
measurement of “thermal diodes” found on small geometry  
processes such as 90nm and 65nm. The LM95241 supports  
user selectable thermal diode non-ideality of either Intel  
processor on 90nm or 65nm process or 2N3904.  
The LM95241 resolution format for remote temperature  
readings can be programmed to be 11-bits signed or un-  
signed with the digital filtering disabled. When the filtering is  
enabled the resolution increases to 13-bits signed or un-  
signed. In the unsigned mode the LM95241 remote diode  
readings can resolve temperatures above 127˚C. Local tem-  
perature readings have a resolution of 9-bits plus sign.  
Key Specifications  
j
Remote Diode Temperature Accuracy  
TA=20˚C to 40˚C, TD=45˚C to 85˚C  
TA=0˚C to 85˚C, TD=25˚C to 140˚C  
Local Temperature Accuracy  
TA=0˚C to 85˚C  
1.25 ˚C (max)  
2.5 ˚C (max)  
j
3.0 ˚C (max)  
3.0 V to 3.6 V  
471 µA (typ)  
Features  
j
j
Supply Voltage  
n Accurately senses die temperature of remote ICs or  
diode junctions  
Average Supply Current  
n Uses TruTherm technology for precision “thermal diode”  
temperature measurement  
n Thermal diode input stage with analog filtering  
n Thermal diode digital filtering  
n Intel processor on 65nm or 90nm process or 2N3904  
non-ideality selection  
Applications  
n Processor/Computer System Thermal Management  
(e.g. Laptop, Desktop, Workstations, Server)  
n Electronic Test Equipment  
n Office Electronics  
n Remote diode fault detection  
n On-board local temperature sensing  
Connection Diagram  
MSOP-8  
20199702  
TOP VIEW  
™
TruTherm is a trademark of National Semiconductor Corporation.  
I2C® is a registered trademark of Philips Corporation.  
Pentium® is a registered trademark of Intel Corporation.  
© 2006 National Semiconductor Corporation  
DS201997  
www.national.com  
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