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TC646VOA713 PDF预览

TC646VOA713

更新时间: 2024-11-09 14:45:07
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
30页 300K
描述
BRUSHLESS DC MOTOR CONTROLLER, PDSO8, 0.150 INCH, PLASTIC, SOIC-8

TC646VOA713 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:8542.39.00.01Factory Lead Time:8 weeks
风险等级:5.02模拟集成电路 - 其他类型:BRUSHLESS DC MOTOR CONTROLLER
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:3
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:3.3/5 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):1 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):3 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:OTHER端子面层:Matte Tin (Sn) - annealed
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

TC646VOA713 数据手册

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DTC646  
PWM Fan Speed Controller with Auto-Shutdown  
and FanSenseTechnology  
Features  
Package Types  
Temperature Proportional Fan Speed for Acoustic  
Control and Longer Fan Life  
SOIC/PDIP/MSOP  
• Efficient PWM Fan Drive  
V
V
V
1
2
3
4
8
7
6
5
IN  
DD  
• 3.0V to 5.5V Supply Range:  
C
OUT  
F
TC646  
- Fan Voltage Independent of TC646  
Supply Voltage  
V
FAULT  
SENSE  
AS  
GND  
- Supports any Fan Voltage  
• FanSense™ Fault Detection Circuits Protect  
Against Fan Failure and Aid System Testing  
General Description  
• Shutdown Mode for "Green" Systems  
• Supports Low Cost NTC/PTC Thermistors  
• Space Saving 8-Pin MSOP Package  
• Over-temperature Indication  
The TC646 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 VIN input fur-  
nishes the required control voltage of 1.25V to 2.65V  
(typical) for 0% to 100% PWM duty cycle. The TC646  
automatically suspends fan operation when measured  
temperature (VIN) is below a user programmed  
minimum setting (VAS). 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.  
Applications  
• Power Supplies  
• Computers  
• File Servers  
• Portable Computers  
Telecom Equipment  
• UPS, Power Amps  
• General Purpose Fan Speed Control  
The TC646 features Microchip Technology's proprie-  
tary FanSense™ technology for increasing system reli-  
ability. 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 uncon-  
nected fan causes the TC646 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.  
FAULT is also asserted if the PWM reaches 100% duty  
cycle, indicating a possible thermal runaway situation,  
although the fan continues to run. See Section 5.0,  
“Typical Applications”, for more information and system  
design guidelines.  
Available Tools  
• Fan Controller Demonstration Board (TC642DEMO)  
• Fan Controller Evaluation Kit (TC642EV)  
The TC646 is available in the 8-pin plastic DIP, SOIC  
and MSOP packages and is available in the industrial  
and extended commercial temperature ranges.  
2002-2012 Microchip Technology Inc.  
DS21446D-page 1  

TC646VOA713 替代型号

型号 品牌 替代类型 描述 数据表
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