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参数资料
| 型号： | LB11880 |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.2 A, PDIP30 |
| 封装： | DIP-30 |
| 文件页数： | 8/9页 |
| 文件大小： | 114K |
| 代理商： | LB11880 |
LB11880
No.6470-8/9
Continued from preceding page.
Pin No.
Pin name
Pin voltage
Function
Equivalent circuit
19
MCOM
Motor coil center input.
The coil voltage waveform is detected with
this voltage as the reference.
22
UIN
23
VIN
24
WIN
Coil waveform detection comparator input.
Each phase output is connected by an
internal 10k
Ω resistor.
VCC
23
22
16 17 18
24
19
200
Ω
10k
Ω
2k
Ω
200
Ω
200
Ω
25
C1
26
C2
Triangular wave generating capacitor
connection.
This triangular wave is used to implement
soft switching in the coil output waveform.
26
25
1k
Ω
5
μA
15
μA
15
μA
1/2VREG-VF
VREG
27
CX
The value of the capacitor connected
between this pin and ground determines the
operating frequency range and the minimum
operating frequency of the VCO circuit.
300
Ω
VREG
27
100
μA
28
VCOIN
VCO circuit voltage input.
The PCOUT pin voltage is filtered by an RC
circuit and input to this pin.
VREG
50k
Ω
10k
Ω
1.75V
50
μA
50
μA
28
29
PCOUT
VCO circuit PLL output.
VREG
29
30
GND
Ground for all circuits other than the drum
and loading driver output transistors.
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