TC649E

更新时间： 2025-08-30 22:42:27

品牌	Logo	应用领域
美国微芯 - MICROCHIP		风扇控制器
页数	文件大小	规格书
28页	462K
描述
PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TC649E 数据手册

TC649

PWM Fan Speed Controller with Auto-Shutdown

and FanSense™ Technology

Features

Package Types

• Temperature Proportional Fan Speed for Acoustic

Control and Longer Fan Life

SOIC/PDIP/MSOP

• Efficient PWM Fan Drive

• 3.0V to 5.5V Supply Range:

- Fan Voltage Independent of TC649

Supply Voltage

OUT

TC649

FAULT

SENSE

- Supports any Fan Voltage

GND

• 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

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

Applications

• Power Supplies

• Computers

• File Servers

• Portable Computers

• Telecom Equipment

• UPSs, Power Amps

• General Purpose Fan Speed Control

temperature sensor) connected to the V 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 ) is below a user programmed

minimum setting (V ). 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.

Available Tools

• Fan Controller Demonstration Board (TC642DEMO)

• Fan Controller Evaluation Kit (TC642EV)

In normal fan operation, a pulse train is present at

SENSE (Pin 5). The TC649 features Microchip

Technology’s proprietary FanSense

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.

2002 Microchip Technology Inc.

DS21449C-page 1

12 3 4 5 6 7...28

中文翻译

下载PDF

与TC649E相关器件

型号	品牌	获取价格	描述	数据表
TC649EOA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a
TC649EOATR	MICROCHIP	获取价格	BRUSHLESS DC MOTOR CONTROLLER, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
TC649EPA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a
TC649EUA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a
TC649EUATR	MICROCHIP	获取价格	BRUSHLESS DC MOTOR CONTROLLER, PDSO8, PLASTIC, MSOP-8
TC649VOA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a
TC649VOART	MICROCHIP	获取价格	暂无描述
TC649VOATR	MICROCHIP	获取价格	BRUSHLESS DC MOTOR CONTROLLER, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
TC649VPA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a
TC649VUA	MICROCHIP	获取价格	PWM Fan Speed Controller with Auto-Shutdown a

产品中心

服务支持

精选活动

关于我们

帮助中心

TC649E

TC649E 数据手册

与TC649E相关器件

与TC649E相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

TC649E

TC649E 数据手册

与TC649E相关器件

与TC649E相关文章

您还可以找

您在本页遇到什么问题？