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參數(shù)資料
| 型號： | LB1817W |
| 元件分類： | 運動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP48 |
| 封裝： | SQFP-48 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 224K |
| 代理商： | LB1817W |
LB1817W
No. 5805-5/9
Continued from preceding page
Pin number
9
10
11
15
16
17
18
Pin name
MS1
S/S
I–
I+
X1
X2
FC
Equivalent circuit
Pin function
Rotation speed switching pin.
High: 360 rpm
Low: 300 rpm
For details, see rotation speed switching
table.
Start/stop switching pin.
Low: active
External index – input pin.
External index + input pin.
When I– pin is High, constant current I1
flows. When pin is Low, constant current
I1 is cut off.
Resistor externally connected to I– pin
determines hysteresis width.
Reference clock generator pin.
Frequency characteristics compensation
pin.
To prevent current control loop oscillation,
insert a capacitor between this pin and
VCC.
Pin voltage
H: 2.0V min
L: 0.8V max
H: 2.0V min
L: 0.8V max
Continued on next page
VCC
50k
9
50k
VCC
10
200
VCC
200
I1
11
15
VCC
200
17
18
VCC
400
200
16
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