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LM95234CISDX

更新时间： 2024-11-27 03:51:39
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
5页 508K
描述
Quad Remote Diode and Local Temperature Sensor with SMBus Interface and TruTherm⑩ Technology

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LM95234CISDX 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：LLP-14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.2Is Samacsys：N
最大精度（摄氏度）：2 Cel主体宽度：4 mm
主体高度：0.8 mm主体长度或直径：4 mm
JESD-609代码：e0安装特点：SURFACE MOUNT
位数：11端子数量：14
最大工作电流：0.5 mA最高工作温度：140 °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封装等效代码：SOLCC14,.16,20
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端子面层：Tin/Lead (Sn/Pb)
端接类型：SOLDERBase Number Matches：1

LM95234CISDX 数据手册

 浏览型号LM95234CISDX的Datasheet PDF文件第2页浏览型号LM95234CISDX的Datasheet PDF文件第3页浏览型号LM95234CISDX的Datasheet PDF文件第4页浏览型号LM95234CISDX的Datasheet PDF文件第5页 
ADVANCE INFORMATION  
August 2006  
LM95234  
Quad Remote Diode and Local Temperature Sensor with  
™
SMBus Interface and TruTherm Technology  
n TruTherm technology accurately senses sub-micron  
process thermal diodes  
General Description  
LM95234 is an 11-bit digital temperature sensor with a 2-wire  
System Management Bus (SMBus) interface that can moni-  
tor the temperature of four remote diodes as well as its own  
temperature. The LM95234 can be used to very accurately  
monitor the temperature of up to four external devices such  
as microprocessors, graphics processors or diode-  
connected 2N3904s. The LM95234’s TruTherm technology  
allows sensing of 90nm or 65nm process thermal diodes  
accurately.  
n Programmable digital filters and analog front end filter  
n 0.125˚C LSb temperature resolution  
n 0.03125˚C LSb remote temperature resolution with  
digital filter enabled  
n
+127.875˚C/–128˚C and 0˚C/255˚C remote ranges  
n Remote diode fault detection, model selection and offset  
correction  
n Mask and status register support  
n 3 programmable TCRIT outputs with programmable  
shared hysteresis and Fault-Queue  
n Programmable conversion rate and shutdown mode  
one-shot conversion control  
n SMBus 2.0 compatible interface, supports TIMEOUT  
n Three-level address pin  
n 14-pin LLP package  
The LM95234 reports temperature in two different formats  
for +127.875˚C/–128˚C range and 0˚C/255˚C range. The  
LM95234 TCRIT1, TCRIT2 and TCRIT3 outputs are trig-  
gered when any unmasked channel exceeds its correspond-  
ing programmable limit and can be used to shutdown the  
system, to turn on the system fans or as a microcontroller  
interrupt function. The current status of the TCRIT1, TCRIT2  
and TCRIT3 pins can be read back from the status registers.  
Mask registers are available for further control of the TCRIT  
outputs.  
Key Specifications  
Two LM95234 remote temperature channels have program-  
mable digital filters while the other two remote channels  
utilize a fault-queue to minimize unwanted TCRIT events  
when temperature spikes are encountered.  
j
Local Temperature Accuracy  
2.0 ˚C (max)  
0.75 ˚C (max)  
j
Remote Diode Temperature  
Accuracy  
j
j
Supply Voltage  
3.0 V to 3.6 V  
0.5 mA (typ)  
For optimum flexibility and accuracy, each LM95234 channel  
includes registers for sub-micron process or 2N3904 diode  
model selection as well as offset correction. A three level  
address pin allows connection of up to 3 LM95234s to the  
same SMBus master. The LM95234 includes power saving  
functions such as: programmable conversion rate, shutdown  
mode, and turn off of unused channels.  
Average Supply Current (1Hz  
conversion rate)  
Applications  
n Processor/Computer System Thermal Management  
(e.g. Laptop, Desktop, Workstations, Server)  
n Electronic Test Equipment  
Features  
n Office Electronics  
n Accurately senses die temperature of 4 remote ICs or  
diode junctions and local temperature  
Connection Diagram  
LLP-14  
20106301  
TOP VIEW  
™
TruTherm is a trademark of National Semiconductor Corporation.  
© 2006 National Semiconductor Corporation  
DS201063  
www.national.com  
12345

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