參數(shù)資料
型號(hào)： TC648VPA
廠商： Microchip Technology Inc.
英文描述： Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert
中文描述： 與自動(dòng)風(fēng)扇轉(zhuǎn)速控制關(guān)斷和過(guò)溫警報(bào)
文件頁(yè)數(shù)： 15/28頁(yè)
文件大?。?/td> 602K
代理商： TC648VPA
2002 Microchip Technology Inc.
DS21448C-page 15
TC648
FIGURE 5-8:
Design Example.
5.8
TC648 as a Microcontroller
Peripheral
In a system containing a microcontroller or other host
intelligence, the TC648 can be effectively managed as
a CPU peripheral. Routine fan control functions can be
performed by the TC648 without processor interven-
tion. The microcontroller receives temperature data
from one or more points throughout the system. It
calculates a fan operating speed based on an algorithm
specifically designed for the application at hand. The
processor controls fan speed using complementary
port bits I/O1 through I/O3.
Resistors R
1
through R
6
(5% tolerance) form a crude
3-bit DAC that translates the 3-bit code from the
processor's outputs into a 1.6V DC control signal. A
monolithic DAC or digital pot may be used instead of
the circuit shown in Figure 5-9.
With V
AS
set at 1.8V, the TC648 enters auto-shutdown
when the processor's output code is 000[B]. Output
codes 001[B] to 111[B] operate the fan from roughly
40% to 100% of full speed. An open-drain output from
the processor (I/O0) can be used to reset the TC648
following detection of a fault condition. The OTF output
can be connected to the processor's interrupt input, or
to another I/O pin, for polled operation.
NC
NTC
10 k
@ 25C
R
1
20.5 k
R
2
3.83 k
+5V
R
5
33 k
R
7
800
R
6
GND
RESET
Shutdown
(Optional)
Q
1
+12V
+5V
+5V
V
DD
V
IN
V
AS
V
OUT
C
B
1
μ
F
C
F
TC648
OTF
Fan
Thermal
Fault
C
B
0.01
μ
F
C
B
0.01
μ
F
C
B
1
μ
F
1
8
4
6
7
5
2
3
18 k
Open-Drain
Device
相關(guān)PDF資料
PDF描述
TC649EOA PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
TC649VOA CAPACITOR, CLASS Y2 15NFCAPACITOR, CLASS Y2 15NF; Capacitance:15nF; Voltage rating, AC:250V; Voltage rating, DC:2500V; Capacitor dielectric type:Polypropylene; Series:B81122; Tolerance, +:20%; Tolerance, -:20%; Temp, op.
TC649VPA CAPACITOR, CLASS Y2 150NFCAPACITOR, CLASS Y2 150NF; Capacitance:150nF; Voltage rating, AC:250V; Voltage rating, DC:2500V; Capacitor dielectric type:Polypropylene; Series:B81122; Tolerance, +:20%; Tolerance, -:20%; Temp, op.
TC649VUA CAPACITOR, CLASS Y2 22NFCAPACITOR, CLASS Y2 22NF; Capacitance:22nF; Voltage rating, AC:250V; Voltage rating, DC:2500V; Capacitor dielectric type:Polypropylene; Series:B81122; Tolerance, +:20%; Tolerance, -:20%; Temp, op.
TC649 PWM Fan Speed Controller with Auto-Shutdown and FanSense Technology(風(fēng)扇監(jiān)控器帶自動(dòng)關(guān)斷功能)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC648VPA 制造商:Microchip Technology Inc 功能描述:Fan Management Controller IC
TC648VUA 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Over-T Alert RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
TC648VUA713 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Over-T Alert RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
TC648VUAG 制造商:Microchip Technology 功能描述:PWM Fan Motor Speed Controller 8-Pin MSOP Tube
TC649 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
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