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参数资料
| 型号： | TC647VOART |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 1/15页 |
| 文件大小： | 117K |
| 代理商： | TC647VOART |
TC647
EVALUATION
KIT
AVAILABLE
TC647-2
11/03/00
2001 Microchip Technology Inc.
DS21447A
GENERAL DESCRIPTION
The TC647 is a switch mode fan speed controller for use
with brushless DC motors. Temperature proportional speed
control is accomplished using pulse width modulation. A
thermistor (or other voltage output temperature sensor)
connected to VIN 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
VMIN 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 VMIN, Pin 3, causes fan shutdown.
The TC647 also features Microchip Technology's propri-
etary FanSense technology for increasing system reliabil-
ity. In normal fan operation, a pulse train is present at
SENSE, Pin 5, indicating normal operation. A Missing-pulse
Detector monitors this pin during normal 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 Shutdown
Mode.
The TC647 is available in a standard 8-Pin PDIP and
SOIC packages. Commercial and industrial temperature
ranges are available in both package options.
PWM Fan Speed Controller with FanSense*
PIN CONFIGURATIONS
FEATURES
I Temperature Proportional Fan Speed for Acoustic
Control and Longer Fan Life
I Efficient PWM Fan Drive
I 3.0V to 5.5V Supply Range; Fan Voltage Indepen-
dent of TC647 Supply Voltage - Supports Any Fan
Voltage!
I FanSenseFault Detection Circuits Protect
Against Fan Failure and Aid System Testing
I Shutdown Mode for "Green" Systems
I Supports Low Cost NTC/PTC Thermistors
I Space-Saving 8-Pin PDIP and SOIC
Packages
APPLICATIONS
I Power Supplies
I Personal Computers
I File Servers
I Telecom Equipment
I UPS's, Power Amps, etc.
I General Purpose Fan Speed Control
ORDERING INFORMATION
Part No.
Package
Temp. Range
TC647VOA
8-Pin SOIC (Narrow)
0
°C to +85°C
TC647VPA
8-Pin PDIP (Narrow)
0
°C to +85°C
TC642EV
Evaluation Kit for TC647
FUNCTIONAL BLOCK DIAGRAM
18
27
36
45
TC647VPA
PDIP
SOIC
FAULT
SENSE
18
27
36
45
TC647VOA
GND
VDD
VOUT
CF
VIN
VMIN
GND
CF
VIN
VAS
FAULT
SENSE
VDD
VOUT
FAULT
SHDN
SENSE
GND
70mV (typ.)
10k
VMIN
VIN
CF
VDD
VOUT
TC647
CONTROL
LOGIC
VSHDN
+
–
+
–
+
–
3 x TPWM
TIMER
START-UP
TIMER
CLOCK
GENERATOR
MISSING
PULSE
DETECT.
*Patent Granted
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC647VOATR | 功能描述:马达/运动/点火控制器和驱动器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TC647VPA | 功能描述:马达/运动/点火控制器和驱动器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TC647VUA | 功能描述:马达/运动/点火控制器和驱动器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TC647VUATR | 功能描述:马达/运动/点火控制器和驱动器 w/Fault Dtct RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TC648 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Fan Speed Controller with Auto-Shutdown and Over-Temperature Alert |
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