參數(shù)資料
型號(hào)： TC649EOA
廠商： Microchip Technology Inc.
英文描述： PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
中文描述： PWM風(fēng)扇帶自動(dòng)調(diào)速器關(guān)斷和FanSense⑩技術(shù)
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 478K
代理商： TC649EOA
2002 Microchip Technology Inc.
DS21449C-page 1
M
TC649
Features
Temperature Proportional Fan Speed for Acoustic
Control and Longer Fan Life
Efficient PWM Fan Drive
3.0V to 5.5V Supply Range:
- Fan Voltage Independent of TC649
Supply Voltage
- Supports any Fan Voltage
FanSense Fault Detection Circuits Protect
Against Fan Failure and Aid System Testing
Automatic Shutdown Mode for “Green” Systems
Supports Low Cost NTC/PTC Thermistors
Space Saving 8-Pin MSOP Package
Applications
Power Supplies
Computers
File Servers
Portable Computers
Telecom Equipment
UPSs, Power Amps
General Purpose Fan Speed Control
Available Tools
Fan Controller Demonstration Board (TC642DEMO)
Fan Controller Evaluation Kit (TC642EV)
Package Types
General Description
The TC649 is a switch mode, fan speed controller for
use with brushless DC fans. Temperature proportional
speed control is accomplished using pulse width mod-
ulation (PWM). A thermistor (or other voltage output
temperature sensor) connected to the V
IN
input fur-
nishes the required control voltage of 1.25V to 2.65V
(typical) for 0% to 100% PWM duty cycle. The TC649
automatically suspends fan operation when measured
temperature (V
IN
) is below a user programmed
minimum setting (V
AS
). An integrated Start-up Timer
ensures reliable motor start-up at turn-on, coming out
of shutdown mode, auto-shutdown mode or following a
transient fault.
In normal fan operation, a pulse train is present at
SENSE (Pin 5). The TC649 features Microchip
Technology’s proprietary FanSense
TM
technology for
increasing system reliability. A missing pulse detector
monitors this pin during fan operation. A stalled, open
or unconnected fan causes the TC649 to trigger its
Start-up Timer once. If the fault persists, the FAULT
output goes low, and the device is latched in its shut-
down mode. See Section 5.0, “Typical Applications”,
for more information and system design guidelines.
The TC649 is available in the 8-pin PDIP, SOIC and
MSOP packages and is available in the industrial and
extended commercial temperature ranges.
SOIC/PDIP/MSOP
1
8
2
7
3
6
4
5
GND
C
F
V
IN
V
AS
FAULT
SENSE
V
DD
V
OUT
TC649
PWM Fan Speed Controller with Auto-Shutdown
and FanSense Technology
相關(guān)PDF資料
PDF描述
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)
TC649E PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC649EOATR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct 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
TC649EPA 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
TC649EUA 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct 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
TC649EUATR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct 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
TC649VOA 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Shtdn & Fault Dtct 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
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