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参数资料
| 型号： | LB1988N |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDIP30 |
| 封装： | SDIP-30 |
| 文件页数： | 6/9页 |
| 文件大小： | 92K |
| 代理商： | LB1988N |
No. 6185-6/9
LB1988N
Pin Functions
Pin No.
Symbol
Voltage
Function
Equivalent circuit diagram
Frequency characteristics correction.
Insert a capacitor between this pin and ground to
prevent closed-loop oscillation in the current control
system.
1FC
VREG
1 k
10 k
5 k
1
Speed control.
This circuit implements a constant-current control
scheme in which current feedback from the RF pin is
applied.
2VC
0 V to VREG
40 k
27 k
24 k
VCC
VREG
50
F
50
F
2
200
Control system power supply.
This power supply must be stabilized to prevent
ripple or other noise entering the circuit.
3
VREG
4 V to 6 V
6
F6 F
6
F
VREG
5
200
200
4
10 k
10 k
6
30
F
60
F
38
38
5 k
V REG
4
5 k
PG amplifier + input.
This input is biased at 1/2 VREG internally.
4
PGIN+
PG amplifier - input.
5
PGIN–
PG amplifier linear output.
6
PGOUT1
Continued on next page.
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