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参数资料
| 型号： | TC643VPA |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 代理商： | TC643VPA |
3
TC643-1
9/29/97
TC643
INTEGRATED FAN / MOTOR DRIVER
2001 Microchip Technology Inc.
DS21445A
ELECTRICAL CHARACTERISTICS: (Cont.) Over Operating Temperature Range, VCC = 3.0V to 5.5V ±10%,
GND =
GNDFAN = 0V, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
tPW
Pulse Width
Note 2
20
—
sec
tSHDN
Thermal Shutdown Temperature
—
150
—
°C
NOTES: 1. See the
Applications section for specific capacitor recommendations and guidelines.
2. Refer to the
Applications section for a detailed explanation.
3. Automatic thermal shutdown is activated at approximately 150
°C junction temperature.
4. Maximum sink current in MSOP package is limited by power dissipation.
.
Pin No.
1VCC
Power Supply Input. The IC's supply voltage can be independent of the fan's supply
voltage. See
Electrical Characteristics section.
2
DRV
Digital input. This pin directly drives the internal power driver. The power driver is
ON when this pin is HIGH, OFF when it is LOW. DRIVE is typically driven by a host
microcontroller or other digital logic with a PWM signal to accomplish fan/motor
speed control.
3
ILMT
Digital (Open Collector) Output. If the output current, IFAN, exceeds ILIMIT, this
output will go low. IFAN will be clamped at ILIMIT. This serves as an indication of a
stalled or shorted motor, or other fault.
4
RPM
Digital Output. Each time the motor current is interrupted by a pole-crossing, a
logic-level pulse occurs at this pin. Timing the fundamental frequency of the
resulting waveform yields motor RPM. See the
Applications Section for more
details and example circuits.
5
GND
Ground Terminal. This is the ground terminal for the IC itself. A separate ground
terminal, GNDFAN, is provided for the motor.
6CEXT
External Capacitor. A 0.002
F capacitor between this pin and ground is used to
differentiate the fan's commutation pulses. This function is part of the internal signal
conditioning circuitry that generates the RPM output.
7
FAN
Analog input. The negative terminal of the fan motor is connected to this terminal.
This terminal is essentially the collector of an internal NPN transistor. It will be
pulled to within VCE(SAT) of GNDFAN when the PWM is on. FAN will stand off 15V.
8
GNDFAN
Analog Output. This is a separate ground terminal for the fan motor return current.
It is essentially the emitter of an NPN transistor. See the
Electrical Characteristics
section for more details.
PIN DESCRIPTION
(DIP/SOIC/MSOP)
Symbol
Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC643VUA | 功能描述:IC FAN/MOTOR DRIVER 8-MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 产品变化通告:ATA683(3,4)PLQW Obsolescence 09/Aug/2012 标准包装:1 系列:- 应用:DC 电机控制器，无刷（BLDC），3 相 评估套件:可供 输出数:1 电流 - 输出:100mA 电压 - 负载:5.25 V ~ 20 V 电源电压:5.25 V ~ 20 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-VQFN（7x7） 包装:剪切带 (CT) 其它名称:ATA6833-PLQWCT |
| TC644 | 制造商:Datak Corporation 功能描述:CIGARETTE LIGHTER, AUTOMOTIVE POWER ACCESSORIES, CIGARETTE LIGHTER PLUG |
| TC644B | 制造商:Datak Corporation 功能描述:Cigarette Lighter Plug |
| TC646 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PWM Fan Speed Controller with Auto-Shutdown and FanSense⑩ Technology |
| TC646B | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PWM Fan Speed Controllers With Auto-Shutdown, Fan Restart and FanSense⑩ Technology for Fault Detection |
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