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參數(shù)資料
| 型號： | TC648VOA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
| 中文描述： | 與自動風(fēng)扇轉(zhuǎn)速控制關(guān)斷和過溫警報 |
| 文件頁數(shù)： | 5/28頁 |
| 文件大?。?/td> | 602K |
| 代理商： | TC648VOA |
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2002 Microchip Technology Inc.
DS21448C-page 5
TC648
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
PIN FUNCTION TABLE
2.1
Analog Input (V
IN
)
The thermistor network (or other temperature sensor)
connects to the V
IN
input. A voltage range of 1.25V to
2.65V (typical) on this pin drives an active duty cycle of
0% to 100% on the V
OUT
pin (see Section 5.0, “Typical
Applications”, for more details).
2.2
Analog Output (C
F
)
C
F
is the positive terminal for the PWM ramp generator
timing capacitor. The recommended C
F
is 1 μF for
30 Hz PWM operation.
2.3
Analog Input (V
AS
)
An external resistor divider connected to the V
AS
input
sets the auto-shutdown threshold. Auto-shutdown
occurs when V
IN
≤
V
AS
. During shutdown, supply
current falls to 25 μA (typical). The fan is automatically
restarted when V
IN
≥
(V
AS
+V
HAS
) (see Section 5.0,
“Typical Applications” for more details).
2.4
Ground (GND)
GND denotes the ground Terminal.
2.5
No Connect
No internal connection.
2.6
Digital Output (OTF)
OTF goes low to indicate an over-temperature
condition. This occurs when the voltage at V
IN
> V
OTF
(see Section 1.0, "Electrical Characteristics"). An over-
temperature indication is a non-latching condition.
2.7
Digital Output (V
OUT
)
V
OUT
is an active high complimentary output that drives
the base of an external NPN transistor (via an appropri-
ate base resistor) or the gate of an N-channel MOS-
FET. This output has asymmetrical drive (see
Section 1.0, “Electrical Characteristics”).
2.8
Power Supply Input (V
DD
)
V
DD
may be independent of the fan’s power supply
(see Section 1.0, “Electrical Characteristics”).
Pin No.
Symbol
Description
1
2
3
4
5
6
7
8
V
IN
C
F
V
AS
GND
NC
OTF
V
OUT
V
DD
Analog Input
Analog Output
Analog Input
Ground Terminal
No Internal Connection
Digital (Open Collector) Output
Digital Output
Power Supply Input
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| TC648 | Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
| TC648E | Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
| TC648VPA | Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
| 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. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC648VOA | 制造商:Microchip Technology Inc 功能描述:Fan Management Controller IC Package/Cas |
| TC648VOA713 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Shtdn & Over-T Alert RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型: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 |
| TC648VPA | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Shtdn & Over-T Alert RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型: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 |
| TC648VPA | 制造商:Microchip Technology Inc 功能描述:Fan Management Controller IC |
| TC648VUA | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Shtdn & Over-T Alert RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型: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 |
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