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LM88CIMMX-A PDF预览

LM88CIMMX-A

更新时间： 2024-02-19 09:12:01
品牌 Logo 应用领域
美国国家半导体 - NSC 二极管
页数 文件大小 规格书
9页 199K
描述
Factory Programmable Dual Remote-Diode Thermostat

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中文翻译

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LM88CIMMX-A 技术参数

生命周期：ObsoleteReach Compliance Code：unknown
风险等级：5.83最大精度（摄氏度）：3 Cel
主体宽度：3 mm主体高度：0.965 mm
主体长度或直径：3 mm外壳：PLASTIC
安装特点：SURFACE MOUNT最大工作电流：1.5 mA
最高工作温度：85 °C最低工作温度：-40 °C
封装形状/形式：SQUARE传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,DUAL TRIP POINT
最大供电电压：3.8 V最小供电电压：2.8 V
表面贴装：YES端接类型：SOLDER
Base Number Matches：1

LM88CIMMX-A 数据手册

 浏览型号LM88CIMMX-A的Datasheet PDF文件第2页浏览型号LM88CIMMX-A的Datasheet PDF文件第3页浏览型号LM88CIMMX-A的Datasheet PDF文件第4页浏览型号LM88CIMMX-A的Datasheet PDF文件第5页浏览型号LM88CIMMX-A的Datasheet PDF文件第6页浏览型号LM88CIMMX-A的Datasheet PDF文件第7页 
August 2001  
LM88  
Factory Programmable Dual Remote-Diode Thermostat  
General Description  
Features  
n 2 external remote diode input channels  
n 3 digital comparator outputs, 1 per remote diode and  
one T_CRIT common to both  
The LM88 is a dual remote-diode temperature sensor with 3  
digital comparators. The LM88 has 3 open-drain outputs  
(O_SP0, O_SP1 and O_CRIT) that can be used as inter-  
rupts or to signal system shutdown. The digital comparators  
can be factory programmed to make a greater than or less  
than comparison. When programmed for a greater than  
comparison outputs:  
n Factory programmable greater than or less than  
comparisons  
n 1˚C comparator hysteresis  
n 2 setpoints, T_SP0 and T_SP1, factory programmable in  
4˚C intervals  
n 1 setpoint, T_CRIT, factory programmable in 1˚C  
intervals  
O_SP0 and O_SP1 activate when the temperatures mea-  
sured by D0 or D1 exceed the associated setpoints of  
T_SP0 or T_SP1.  
O_CRIT activates when the temperature measured by  
either D0 or D1 exceeds setpoint T_CRIT.  
n Active Low open-drain digital outputs  
n 8-pin mini-SO plastic package  
T_CRIT can be set at 1˚C intervals from −40˚C to +125˚C.  
T_SP0 and T_SP1 can be set at 4˚C intervals in the range of  
T_CRIT +127˚C/−128˚C. Hysteresis for all comparators is  
set to 1˚C. O_CRIT, in conjunction with T_CRIT, could be  
used to prevent catastrophic damage to key subsystems  
such as notebook Card Bus cards while O_SP0 and O_SP1,  
in conjunction with T_SP0 and T_SP1, can warn of an  
impending failure.  
Key Specifications  
j
j
j
j
Power Supply Voltage  
2.8V–3.8V  
1.5 mA (max)  
−40˚C to +85˚C  
Power Supply Current  
LM88 Temperature Range  
Diode Setpoint Temperature  
Range  
0˚C to +125˚C  
The LM88 is available in an 8-lead mini-small-outline pack-  
age.  
j
Temperature Trip Point Accuracy:  
Diode Junction  
Temperature  
LM88CIM  
Accuracy  
LM88CIM  
Temperature  
Range  
Applications  
n Microprocessor Thermal Management  
n Appliances  
(TDJ  
)
n Portable Battery Powered Systems  
n Fan Control  
n Industrial Process Control  
n HVAC Systems  
n Remote Temperature Sensing  
n Electronic System Protection  
±
+45˚C to +85˚C  
+60˚C to +100˚C  
3˚C (max)  
3˚C (max)  
−40˚C to +85˚C  
−40˚C to +85˚C  
±
Note: These are sample ranges. Contact factory for other  
ranges.  
Simplified Block Diagram and Connection Diagram  
MSOP-8/MUA08A Package  
10132601  
10132602  
For simplicity, the effects of the hysteresis are not shown in the  
temperature response diagram.  
Top View  
© 2001 National Semiconductor Corporation  
DS101326  
www.national.com  
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