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UC1730QTR PDF预览

UC1730QTR

更新时间： 2024-11-14 20:33:23
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
5页 284K
描述
IC,TEMPERATURE SENSOR,BIPOLAR,LDCC,20PIN,PLASTIC

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中文翻译

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UC1730QTR 技术参数

是否Rohs认证：不符合生命周期：Obsolete
Reach Compliance Code：not_compliant风险等级：5.92
Is Samacsys：N安装特点：SURFACE MOUNT
端子数量：20最大工作电流：4 mA
封装主体材料：PLASTIC/EPOXY封装等效代码：LDCC20,.4SQ
封装形状/形式：SQUARE电源：5/35 V
子类别：Other Sensors表面贴装：YES
技术：BIPOLARBase Number Matches：1

UC1730QTR 数据手册

 浏览型号UC1730QTR的Datasheet PDF文件第2页浏览型号UC1730QTR的Datasheet PDF文件第3页浏览型号UC1730QTR的Datasheet PDF文件第4页浏览型号UC1730QTR的Datasheet PDF文件第5页 
UC1730  
UC2730  
UC3730  
Thermal Monitor  
FEATURES  
DESCRIPTION  
•
On-Chip Temperature Transducer  
The UC1730 family of integrated circuit devices are designed to be used in  
a number of thermal monitoring applications. Each IC combines a tempera-  
ture transducer, precision reference, and temperature comparator allowing  
the device to respond with a logic output if temperatures exceed a user pro-  
grammed level. The reference on these devices is capable of supplying in  
excess of 250mA of output current − by setting a level of power dissipation  
the rise in die temperature will vary with airflow past the package, allowing  
the IC to respond to airflow conditions  
•
Temperature Comparator Gives  
Threshold Temperature Alarm  
•
•
•
•
Power Reference Permits Airflow  
Diagnostics  
Precision 2.5V Power Reference  
Permits Airflow Diagnostics  
These devices come in an 8-Pin DIP, plastic or ceramic, a 5-Pin TO-220 or a  
PLCC-20 version. In the 8-Pin version, a PTAT (proportional to absolute  
temperature) output reports die temperature directly. This output is config-  
ured such that its output level can be easily scaled up with two external gain  
resistors. A second PTAT source is internally referenced to the temperature  
comparator. The other input to this comparator can then be externally pro-  
grammed to set a temperature threshold. When this temperature threshold  
is exceeded an alarm delay output is activated. Following the activation of  
the delay output, a separate open collector output is turned on. The delay  
pin can be programmed with an external RC to provide a time separation  
between activation of the delay pin and the alarm pin, permitting shutdown  
diagnostics in applications where the open collector outputs of multiple parts  
are wire OR’ed together.  
Transducer Output is Easily Scaled  
for Increased Sensitivity  
Low 2.5mA Quiescent Current  
The 5-Pin version in the TO-220 package is well suited for monitoring  
heatsink temperatures. Enhanced airflow sensitivities can be obtained with  
this package by mounting the device to a small heatsink in the airstream.  
This version of the device does not include the PTAT output or the open col-  
lector alarm output.  
BLOCK DIAGRAM  
Pin numbers shown for 8-Pin DIP, ( ) number for 5-Pin TO-220.  
10/94  
12345

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