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LB1971V Datasheet(PDF) 8 Page - Sanyo Semicon Device

Part # LB1971V
Description  Three-Phase Full-Wave Sensorless CD and MD Players Spindle Motor Driver
PDF  9 Pages
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1971V Datasheet(HTML) 8 Page - Sanyo Semicon Device

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No. 6214-8/9
LB1971V
Pin No.
Symbol
Pin voltage
Function
Equivalent circuit
9
FC
Continued on next page.
10
DET
• Drive waveform sink side envelope
detection
Nothing connected to this pin in normal
operation.
11
12
CSLP1
CSLP2
VCC1
1 k
Ω
11 12
• Connection for the capacitor used for
triangular wave generation
The soft switching operation of the coil
output waveform is created using this
triangular waveform.
14
15
16
22
CX
NC
• Unused
• Clock oscillator used by the sensorless
logic
Connect a capacitor between the CX pin
and ground.
Oscillator frequency must be set up to
60 kHz.
Continued from preceding page.
• Frequency characteristics determination
Closed loop oscillation of the current
control system can be stopped by
connecting a capacitor between this pin
and ground.
1 k
Ω
VCC1
14
13
GND
•Ground
VCC1
1 k
Ω
10
23
1
2
30 k
Ω
1 k
Ω
1 k
Ω
1 k
Ω
VCC1
9
2 k
Ω



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