參數(shù)資料
型號： TC649
廠商： Microchip Technology Inc.
英文描述： PWM Fan Speed Controller with Auto-Shutdown and FanSense Technology(風扇監(jiān)控器帶自動關(guān)斷功能)
中文描述： PWM風扇帶自動調(diào)速器關(guān)斷和FanSense科技（風扇監(jiān)控器帶自動關(guān)斷功能）
文件頁數(shù)： 4/28頁
文件大小： 478K
代理商： TC649
TC649
DS21449C-page 4
2002 Microchip Technology Inc.
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. The TC649 enters shut-
down mode when V
IN
≤
V
SHDN.
During shutdown, the
FAULT output is inactive, and supply current falls to
25 μA (typical). The TC649 exits shutdown mode when
V
IN
≥
V
REL
.
See Section 5.0, “Typical Applications”, for
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
. 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
Analog Input (SENSE)
Pulses are detected at the SENSE pin as fan rotation
chops the current through a sense resistor (R
SENSE
).
The absence of pulses indicates a fault. See
Section 5.0, “Typical Applications”, for more details.
2.6
Digital Output (FAULT)
The FAULT line goes low to indicate a fault condition.
When FAULT goes low due to a fan fault condition, the
device is latched in shutdown mode until deliberately
cleared or until power is cycled.
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
MOSFET. 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
Descriptiion
1
2
3
4
5
6
7
8
V
IN
C
F
V
AS
GND
SENSE
FAULT
V
OUT
V
DD
Analog Input
Analog Output
Analog Input
Ground Terminal
Analog Input
Digital (Open Collector) Output
Digital Output
Power Supply Input
相關(guān)PDF資料
PDF描述
TC649E PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
TC649EPA PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
TC649EUA PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
TC6501P075VCT Ultra Small Temperature Switches with Pin Selectable Hysteresis
TC6504N015VCT Ultra Small Temperature Switches with Pin Selectable Hysteresis
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC649_13 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controller with Auto-Shutdown and FanSensea?￠ Technology
TC649B 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense⑩ Technology for Fault Detection
TC649BEOA 功能描述:馬達/運動/點火控制器和驅(qū)動器 w/Rstrt Shtdn & Flt 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
TC649BEOA713 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense⑩ Technology for Fault Detection
TC649BEOATR 功能描述:馬達/運動/點火控制器和驅(qū)動器 w/Rstrt Shtdn & Flt 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*