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LM95235EIMMX PDF预览

LM95235EIMMX

更新时间: 2024-11-24 11:37:03
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
28页 553K
描述
Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm? Technology

LM95235EIMMX 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSSOP8,.19Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.48Is Samacsys:N
最大精度(摄氏度):2 Cel主体宽度:3 mm
主体高度:1.09 mm主体长度或直径:3 mm
外壳:PLASTICJESD-609代码:e0
安装特点:SURFACE MOUNT位数:11
端子数量:8最大工作电流:0.35 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
技术:CMOS端子面层:Tin/Lead (Sn/Pb)
端接类型:SOLDERBase Number Matches:1

LM95235EIMMX 数据手册

 浏览型号LM95235EIMMX的Datasheet PDF文件第2页浏览型号LM95235EIMMX的Datasheet PDF文件第3页浏览型号LM95235EIMMX的Datasheet PDF文件第4页浏览型号LM95235EIMMX的Datasheet PDF文件第5页浏览型号LM95235EIMMX的Datasheet PDF文件第6页浏览型号LM95235EIMMX的Datasheet PDF文件第7页 
August 15, 2008  
LM95235/LM95235Q  
Precision Remote Diode Temperature Sensor with SMBus  
Interface and TruTherm™ Technology  
Diode Model Selection Bit - MMBT3904 or 65/90 nm  
processor diodes  
Two Formats: −128°C to 127.875°C and  
General Description  
The LM95235 is an 11-bit digital temperature sensor with a  
2-wire System Management Bus (SMBus) interface and  
0°C to 255.875°C  
TruTherm technology that can monitor the temperature of a  
remote diode as well as its own temperature. The LM95235  
Digital filter for remote channel  
Programmable TCRIT and OS thresholds  
can be used to very accurately monitor the temperature of  
external devices such as microprocessors, graphics proces-  
sors, or a diode-connected MMBT3904 transistor. For auto-  
motive applications the LM95235Q is available that is AEC-  
Q100 Grade3 compliant and is manufactured on an  
Automotive Grade Flow. TruTherm BJT (transistor) beta com-  
pensation technology allows the LM95235 to precisely mon-  
itor thermal diodes found in 90 nm and smaller geometry  
processes. LM95235 reports temperature in two different for-  
mats for +127.875°C/-128°C range and 0°C/255°C range.  
The LM95235 T_CRIT and OS outputs are asserted when  
either unmasked channel exceeds its programmed 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 T_CRIT and OS pins can be read back from the  
status registers via the SMBus interface. All limits have a  
shared programmable hysteresis register.  
Programmable shared hysteresis register  
Diode Fault Detection  
Mask, Offset, and Status Registers  
SMBus 2.0 compatible interface, supports TIMEOUT  
Programmable conversion rate for best power  
consumption  
Three-level address pin  
Standby mode one-shot conversion control  
Pin-for-pin compatible with the LM86/LM89  
8-pin MSOP package  
Key Specifications  
3.0 V to 3.6 V  
350 µA (typ)  
■ꢀSupply Voltage  
The remote temperature channel of the LM95235 has a pro-  
grammable digital filter. The LM95235 contains a diode model  
selection bit to select between a typical Intel® processor on  
a 65 nm or 90 nm process or MMBT3904, as well as an offset  
register for maximum flexibility and best accuracy.  
■ꢀSupply Current, Conv. Rate = 1 Hz  
■ꢀRemote Diode Temperature Accuracy  
TA = 25°C to 85°C; TD = 60°C to 100°C  
TA = 25°C to 85°C; TD = 40°C to 125°C  
■ꢀLocal Temperature Accuracy  
TA = 25°C to 100°C  
±0.75°C (max)  
±1.5°C (max)  
The LM95235 has a three-level address pin to connect up to  
3 devices to the same SMBus master, that is shared with the  
OS output. The LM95235 has a programmable conversion  
rate register and a standby mode to save power. One con-  
version can be triggered in standby mode by writing to the  
one-shot register.  
±2.0°C (max)  
16 to 0.4 Hz  
■ꢀConversion Rate, Both Channels  
Applications  
Processor/Computer System Thermal Management  
(e.g. Laptops, Desktops, Workstations, Servers)  
Features  
Remote and Local temperature channels  
Electronic Test Equipment and Office Electronics  
TruTherm BJT beta compensation technology  
LM95235Q is AEC-Q100 Grade 3 compliant and is  
manufactured on an Automotive Grade Flow  
Connection Diagram  
MSOP-8  
20174902  
TOP VIEW  
TruTherm™ is a trademark of National Semiconductor Corporation.  
Intel® is a registered trademark of Intel Corporation.  
Pentium® is a registered trademark of Intel Corporation.  
© 2008 National Semiconductor Corporation  
201749  
www.national.com  

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