Datasheet > UC3730QTR

UC3730QTR

更新时间： 2024-09-13 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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技术参数
数据手册

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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_compliant	HTS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

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

12 3 4 5

中文翻译

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