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參數(shù)資料
| 型號： | TC651GFVUA |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| 中文描述： | 微型集成溫度傳感器 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 440K |
| 代理商： | TC651GFVUA |
2002 Microchip Technology Inc.
DS21450B-page 7
TC650/TC651
4.0
TYPICAL APPLICATIONS
4.1
Reducing Switching Noise
For fans consuming more than 300mA, a slowdown
capacitor (C
SLOW
) is recommended for reducing
switching PWM induced noise (see Figure 4-1). The
value of this capacitor should be 4.7
μ
F to 47
μ
F,
depending on the fan current consumption.
See Application Note AN771 “Suppressing Acoustic
Noise in PWM Fan Speed Control Systems” for more
information.
FIGURE 4-1:
REDUCING SWITCHING
NOISE
1
8
2
7
3
6
4
5
NC
V
DD
C
SLOW
PWM
GND
T
OVER
NC
GND
GND
+5V V
DD
+12V
TC650
TC651
SHDN
GND
μController
DC Fan
500mA
SHDN Control
Over-Temp.
Alert
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| TC651GGVUA | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
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