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參數資料
| 型號： | TC647EUA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | PWM Fan Speed Controller with FanSense Technology |
| 中文描述： | 與FanSense PWM風扇速度控制器技術 |
| 文件頁數： | 1/28頁 |
| 文件大?。?/td> | 478K |
| 代理商： | TC647EUA |
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2002 Microchip Technology Inc.
DS21447C-page 1
M
TC647
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 TC647
Supply Voltage
- Supports any Fan Voltage
FanSense
Technology Fault Detection Circuits
Protect Against Fan Failure and Aid System
Testing
Shutdown Mode for "Green" Systems
Supports Low Cost NTC/PTC Thermistors
Space Saving 8-Pin MSOP Package
Applications
Power Supplies
Personal Computers
File Servers
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 TC647 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 V
IN
furnishes the
required control voltage of 1.25V to 2.65V (typical) for
0% to 100% PWM duty cycle. Minimum fan speed is
set by a simple resistor divider on the V
MIN
input. An
integrated Start-up Timer ensures reliable motor start-
up at turn-on, coming out of shutdown mode or
following a transient fault. A logic low applied to V
MIN
(Pin 3) causes fan shutdown.
The TC647 also features Microchip Technology's pro-
prietary FanSense technology for increasing system
reliability. In normal fan operation, a pulse train is
present at SENSE (Pin 5). A missing pulse detector
monitors this pin during fan operation. A stalled, open
or unconnected fan causes the TC647 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.
The TC647 is available in the 8-pin plastic DIP, SOIC
and MSOP packages and is available in the industrial
and extended commercial temperature ranges.
1
8
2
7
3
6
4
5
TC647
GND
C
F
V
IN
V
MIN
FAULT
SENSE
V
DD
V
OUT
SOIC/PDIP/MSOP
PWM Fan Speed Controller with FanSense
Technology
相關PDF資料 |
PDF描述 |
|---|---|
| TC648VOA | Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TC647EUATR | 功能描述:馬達/運動/點火控制器和驅動器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 產品: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 |
| TC647VOA | 功能描述:馬達/運動/點火控制器和驅動器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 產品: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 |
| TC647VOA | 制造商:Microchip Technology Inc 功能描述:Fan Management Controller IC Package/Cas |
| TC647VOATR | 功能描述:馬達/運動/點火控制器和驅動器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 產品: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 |
| TC647VPA | 功能描述:馬達/運動/點火控制器和驅動器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 產品: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 |
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