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UC3730QTR PDF预览

UC3730QTR

更新时间： 2024-11-17 19:37:19
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
5页 282K
描述
Thermal Monitor 20-PLCC

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中文翻译

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UC3730QTR 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：QLCC
包装说明：QCCJ,针数：20
Reach Compliance Code：not_compliantHTS代码：8542.39.00.01
风险等级：5.92模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：S-PQCC-J20长度：8.965 mm
功能数量：1端子数量：20
封装主体材料：PLASTIC/EPOXY封装代码：QCCJ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：4.57 mm最大供电电压 (Vsup)：25 V
最小供电电压 (Vsup)：5 V标称供电电压 (Vsup)：5 V
表面贴装：YES端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：8.965 mm
Base Number Matches：1

UC3730QTR 数据手册

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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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