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参数资料
| 型号： | TA8462FG |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO10 |
| 封装： | 0.225 INCH, 1MM PITCH, SSOP-10 |
| 文件页数： | 2/9页 |
| 文件大小： | 250K |
| 代理商： | TA8462FG |
TA8462FG
2008-6-24
2
BLOCK DIAGRAM
PIN FUNCTION
PIN No.
SYMBOL
FUNCTIONAL DESCRIPTION
1
NC
Non connection
2
OUT A
Output terminal
3
GND
GND terminal
4
OUT B
Output terminal
5
FG
Rotation speed output terminal
6
RD
Rotation detect output terminal
7
VCC
Power voltage supply terminal
8
IN A
Hall input terminal
9
IN B
Hall input terminal
10
CSC
Lock protector time constant determined terminal
FG and RD outputs
Both the FG and RD outputs are the open collector outputs.
The FG output is pulse proportional to the number of revolutions (the cycle is the same as OUT B) and the RD
output is at the GND level (actually, at Vsat (RD) level) when the motor is being driven and the RD output at the
potential level that is to be applied to the RD terminal as shown in Figure 2 is output when the motor is kept
restrained.
Automatic self rotation recovery circuit
If the rotation of the fan motor is forced to stop by any physical power, the driving coil may be burnt as inducing
voltage caused when the motor is running disappears and large current flows to the driving coil.
Therefore, it becomes necessary to provide the fan motor with a circuit to prevent the driving coil from being
burned by detecting the forced stop of the motor rotation from the outside by some method and a circuit to
automatically rotate the motor when it is released from the restraint.
The TA8462FG is an IC that has cleared the above problems by the burning preventive automatic return circuit.
This operation is shown in Figure 1.
The capacitor CSC connected to the CSC terminal is charged by the charging current ISL (6.3 μA Typ.) and its
potential rises as shown below :
dt
I
C
1
=
V
SL
SC
∫
相关PDF资料 |
PDF描述 |
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| TA8462F | BRUSHLESS DC MOTOR CONTROLLER, 1.5 A, PDSO10 |
| TA8486F | BRUSH DC MOTOR CONTROLLER, 2 A, PDSO24 |
| TA8573FN | SPECIALTY CONSUMER CIRCUIT, PDSO10 |
| TA8573FN | SPECIALTY CONSUMER CIRCUIT, PDSO10 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TA8462FG(5) | 制造商:Toshiba America Electronic Components 功能描述: |
| TA8463F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:SINGLE CHIP 3 PHASE MOTOR DRIVER FOR FDD SPINDLE MOTOR |
| TA8464 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:DUAL POWER OPERATIONAL AMPLIFIER |
| TA8464K | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:DUAL POWER OPERATIONAL AMPLIFIER |
| TA8466AF | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:3 PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC |
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