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TC650AAVUA

更新时间： 2024-11-22 21:54:47
品牌 Logo 应用领域
美国微芯 - MICROCHIP 风扇传感器温度传感器控制器
页数 文件大小 规格书
14页 441K
描述
Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert

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TC650AAVUA 数据手册

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TC650/TC651  
Tiny Integrated Temperature Sensor & Brushless DC Fan  
Controller with Over-Temperature Alert  
Features  
Package Type  
• Integrated Temperature Sensing and Multi-speed  
Fan Control  
8-Pin MSOP  
8-Pin SOIC  
• Built-in Over Temperature Alert (T  
)
OVER  
V
8
PWM  
DD  
1
• Temperature Proportional Fan Speed Control for  
Acoustic Noise Reduction and Longer Fan Life  
NC  
2
3
4
7 GND  
6
TC650  
TC651  
• Pulse Width Modulation Output Drive for Cost and  
Power Savings  
SHDN  
GND  
T
OVER  
5
NC  
• Solid-State Temperature Sensing  
• ±1°C (Typical) Accuracy from 25°C to +70°C  
• 2.8V – 5.5V Operating Range  
General Description  
• TC651 includes Auto Fan Shutdown  
• Low Operating Current: 50µA (Typical)  
The TC650/TC651 are integrated temperature sensors  
and brushless DC fan speed controllers. The TC650/  
TC651 measure their junction temperature and control  
the speed of the fan based on that temperature, making  
them especially suited for applications in modern  
electronic equipment.  
Applications  
• Thermal Protection For Personal Computers  
• Digital Set-Top Boxes  
• Notebook Computers  
• Data Communications  
• Power Supplies  
Temperature data is converted from the on-chip  
thermal sensing element and translated into  
fractional fan speed from 40% to 100%. A temperature  
selection guide in the data sheet is used to choose the  
low and high temperature limits to control the fan. The  
TC650/TC651 also include a single trip point over  
a
• Projectors  
Related Literature  
temperature alert (T  
) that eliminates the need for  
OVER  
additional temperature sensors. In addition, the TC651  
features an auto fan shutdown function for additional  
power savings.  
• Application Note: AN771  
Device Selection Table  
The TC650/TC651 are easy to use, require no software  
overhead and are therefore the ideal choice for  
implementing thermal management in a variety of  
systems.  
Temperature  
Range  
Part Number  
Package  
TC650XXVUA 8-PinSOIC  
TC651XXVUA 8-PinMSOP  
-40°C to +125°C  
-40°C to +125°C  
X
Temperature  
A
B
C
D
E
F
25  
30  
35  
40  
45  
50  
55  
G
The "X" denotes  
a suffix for temperature threshold settings.  
Contact factory for other temperature ranges.  
2002 Microchip Technology Inc.  
DS21450B-page 1  
1234567...14

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