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LM95245CIMM/NOPB PDF预览

LM95245CIMM/NOPB

更新时间: 2024-11-05 13:09:23
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测试
页数 文件大小 规格书
24页 521K
描述
Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 3Cel, SQUARE, SURFACE MOUNT, MO-187, MSOP-8

LM95245CIMM/NOPB 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:TSSOP8,.19Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.22最大精度(摄氏度):3 Cel
其他特性:HYSTERESIS 400MV主体宽度:3 mm
主体高度:1.09 mm主体长度或直径:3 mm
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:0.35 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端子面层:Matte Tin (Sn)
端接类型:SOLDERBase Number Matches:1

LM95245CIMM/NOPB 数据手册

 浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第2页浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第3页浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第4页浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第5页浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第6页浏览型号LM95245CIMM/NOPB的Datasheet PDF文件第7页 
October 2007  
LM95245  
Precision Remote Diode Digital Temperature Sensor with  
TruTherm™ BJT Beta Compensation Technology for 45nm  
Process  
Digital filter for remote channel  
General Description  
Programmable TCRIT and OS thresholds  
The LM95245 is an 11-bit digital temperature sensor with a  
Programmable shared hysteresis register  
2-wire System Management Bus (SMBus) interface and  
TruTherm technology that can monitor the temperature of a  
remote diode as well as its own temperature. The LM95245  
can be used to very accurately monitor the temperature of  
external devices such as microprocessors. TruTherm tech-  
nology allows the LM95245 to precisely monitor thermal  
diodes found in 90 nm and smaller geometry processes. The  
LM95245 is specifically targeted for Intel processors on 45nm  
process. LM95245 reports temperature in two different for-  
mats for +127.875°C/-128°C range and 0°C/255°C range.  
The LM95245 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.  
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 LM95235 and LM86/LM89/  
LM99  
8-pin MSOP package  
Key Specifications  
■ꢀSupply Voltage  
3.0 V to 3.6 V  
350 µA (typ)  
■ꢀSupply Current, Conv. Rate = 1 Hz  
■ꢀRemote Diode Temperature Accuracy  
TA = 25°C to 85°C; TD = 50°C to 105°C  
TA = 25°C to 85°C; TD = 40°C to 125°C  
■ꢀLocal Temperature Accuracy  
TA = 25°C to 100°C  
The remote temperature channel of the LM95245 has a pro-  
grammable digital filter. The LM95245 is targeted for a typical  
Intel® processor on a 45 nm, 65 nm or 90nm process, and  
has an offset register for maximum flexibility and best accu-  
racy.  
±0.75°C (max)  
±1.5°C (max)  
The LM95245 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 LM95245 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  
Office Electronics  
Targeted for Intel 45nm processor diodes  
Two Formats: −128°C to +127.875°C and  
0°C to 255.875°C  
Connection Diagram  
MSOP-8  
30015102  
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.  
© 2007 National Semiconductor Corporation  
300151  
www.national.com  

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