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参数资料
| 型号： | TA8490F |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO30 |
| 封装： | 0.375 INCH, 1 MM PITCH, PLASTIC, SSOP-30 |
| 文件页数： | 21/22页 |
| 文件大小： | 593K |
| 代理商： | TA8490F |
TA8490F
2001-06-13
8
FUNCTIONAL DESCRIPTION
This IC is a 3phase, fullwave brushless DC motor driver of the currentcontrol / currentdrive type.
It contains in its upper stage a PNP discrete power transistor, which, because of the MultiChip Package (MCP)
structures provides high torque and thermal efficiency.
In addition, when combined with a switching regulator, its efficiency can be increased still further.
Control amp input circuit
The Common mode input voltage ranges for both VC and Vref are 1.0 to 4.0 V.
The control inputtodrive output gain is 1.0A / V (typ.), whose characteristic is shown below.
The input is provided with a deadzone area whose voltage width is 100 mV (typ.)
Ω）
3
0
1
.
=
)(
](
/
Α
[
.
=
=
F
C
RF
R
at
typ.
V
I
gm
Mode select / short brake circuit
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