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參數(shù)資料
| 型號： | TC651FDVUA |
| 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)： | 6/14頁 |
| 文件大?。?/td> | 440K |
| 代理商： | TC651FDVUA |
TC650/TC651
DS21450B-page 6
2002 Microchip Technology Inc.
3.4
Shutdown (SHDN)
The fan can be unconditionally shutdown by pulling low
the SHDN pin. During shutdown, the PWM output is
low. This is ideal for notebook computers and other
portable applications when you need to change
batteries and must not have the fan running at that
time. Thermal monitoring and T
OVER
are still in
operation during shutdown. I
DD
shutdown current is
around 50
μ
A.
3.5
Auto-Shutdown Mode
The
temperature is below the factory set point at minimum
speed (T
L
), PWM is low and the fan is automatically
shut off (Auto-shutdown mode). This feature is ideal for
notebook computers and other portable equipment that
need to conserve as much battery power as possible
and thus run a fan when it is only absolutely needed.
The TC651 will continue to be active so as to monitor
temperature for Tover. The TC651 exits Auto-shutdown
mode when the temperature rises above the factory set
point (T
1
).
TC651
features
auto-shutdown;
when
the
3.6
Temperature Selection Guide
(Minimum Fan Speed/Full Speed)
The five temperature regions defined by the six
thresholds are defined in the TC650/TC651 by means
of factory trimming. Once a T
L
and T
H
are set, the T
1
–
T
4
thresholds
are
automatically
between T
L
and T
H
.
equally
spaced
Note:
The
Bold Type
temperature settings are available for
ordering. Contact factory for other temperature selec-
tions.
T
L
and T
H
can be selected in 5°C increments. T
H
must
be chosen at least 10
o
C higher than T
L
. T
L
can range
anywhere from 25°C to 35°C.
As an example, suppose you wanted the fan to
run at
40% speed at 25
°
C
or less and go to
full speed at
45
°
C.
You would order the part number TC650AEVUA.
As another example, suppose you wanted the fan to
turn on at 30
°
C
and go to
full speed at 45
°
C.
You
would order the part number TC651BEVUA.
Temp.
Range
T
L
T
H
Part #
10°C
25
30
35
25
30
35
25
30
35
25
35
40
45
40
45
50
45
50
55
55
AC
BD
CE
AD
BE
CF
AE
BF
CG
AG
15°C
20°C
30°C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC650BBVUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| TC651BBVUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| TC651BEVUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| TC650BGVUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
| TC651BGVUA | Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC651FEVUA | 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 |
| TC651FFVUA | 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 |
| TC651FGVUA | 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 |
| TC651GAVUA | 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 |
| TC651GBVUA | 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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