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TC643VOA PDF预览

TC643VOA

更新时间: 2024-09-16 21:03:03
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电动机控制光电二极管
页数 文件大小 规格书
8页 61K
描述
BRUSHLESS DC MOTOR CONTROLLER, PDSO8, SOIC-8

TC643VOA 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.31
模拟集成电路 - 其他类型:BRUSHLESS DC MOTOR CONTROLLERJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260电源:3/5 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:Motion Control Electronics最大供电电流 (Isup):24 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.7 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3.9 mmBase Number Matches:1

TC643VOA 数据手册

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TC643  
INTEGRATED FAN / MOTOR DRIVER  
FEATURES  
GENERAL DESCRIPTION  
Integrates Current Limited Power Driver and  
Diagnostic/Monitoring Circuits in a Single IC  
Works with Standard DC Brushless Fans/Motors  
The TC643 is a switchmode brushless DC fan/motor  
speed driver with diagnostic circuits. External components  
are kept to a minimum by integrating the power transistor on  
chip. Any logic-level signal can be used to drive the on-chip  
Power Driver. The output is current limited and a logic-level  
indication, ILMT, is provided to indicate an over-current  
condition.  
Supports Efficient PWM Drive with Logic-Level Input  
Supply Range........................................ 2.7V to 5.5V  
Motor Voltage Independent of TC643 Supply  
Voltage; Supports 3V-15V Fans!  
Logic-Level Output Provides RPM Data  
The RPM output gives an indication of motor RPM.  
Each time the motor current is interrupted by commutation,  
a logic pulse occurs on RPM. The fundamental frequency  
of the resulting square wave is (4 x rpm). See the Applica-  
tions section for more information and system design  
guidelines.  
Optimized For Use as a Microcontroller Peripheral  
Eliminates Discrete Components and Analog  
Circuit Design Effort  
Internal Thermal Shutdown For Fail-safe Operation  
Available in 8-Pin PDIP, SOIC, and MSOP  
Packaging  
The TC643 mates easily with microcontrollers or other  
digital logic to form a complete motor or fan control and  
monitoring system, featuring: Variable Speed PWM  
Drive; RPM Indication; and Motor Open / Motor Shorted  
/ Motor Locked Fault Detection.  
APPLICATIONS  
General Purpose Fan or Motor Speed Control  
Power Supplies  
Portable and Desktop Computers  
Telecom Equipment, Servers  
UPS’s, Power Amps, etc.  
The TC643 is available in a standard 8-pin plastic DIP,  
SOIC, and MSOP package.  
ORDERING INFORMATION  
Part No.  
Package  
Temp. Range  
TC643VOA  
TC643VPA  
TC643VUA  
8-Pin SOIC  
0°C to +85°C  
0°C to +85°C  
0°C to +85°C  
FUNCTIONAL BLOCK DIAGRAM  
8-Pin Plastic DIP  
8-Pin MSOP  
VFAN  
+5V  
PIN CONFIGURATIONS  
VCC  
ONE-  
SHOT  
RPM  
CEXT  
FAN  
dV/dt  
PDIP/SOIC  
FAN  
0.002µF  
GNDFAN  
FAN  
VCC  
1
2
3
4
8
7
6
5
DRIVER  
DRV  
DRV  
TC643VOA  
TC643VPA  
CEXT  
ILMT  
+
RPM  
GND  
ILMT  
I-LIMIT  
MSOP  
GNDFAN  
GND  
VREF  
VCC  
1
2
3
4
GNDFAN  
8
7
6
5
TC643  
DRV  
FAN  
CEXT  
TC643VUA  
ILMT  
RPM  
GND  
© 2001 Microchip Technology Inc. DS21445A  
TC643-1 9/29/97  

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