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LA6502 Datasheet(PDF) 9 Page - Sanyo Semicon Device

Part # LA6502
Description  Monolithic Linear IC 5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch
PDF  11 Pages
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA6502 Datasheet(HTML) 9 Page - Sanyo Semicon Device

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LA6502
No.7816-9/11
Continued from preceding page.
Pin No.
Pin name
Function
Pin voltage
Equivalent circuit
36
AMPIN+
OP-AMP non-inverted input pin.
35
AMPIN-
OP-AMP inverted input pin.
0V to 5V
34
AMPOUT
OP-AMP output pin.
19
SPUOUT
18
SPVOUT
17
SPWOUT
Spindle motor driver output pin.
21
SPRF
Spindle motor driver output transistor
power pin
Detects this voltage for constant current
control
/The current limiter also detects this
potential and is activated.
24
MCOM
Spindle motor coil mid-point input pin
Detects the coil voltage waveform with
reference to this voltage.
39
SPC1
40
SPC2
Spindle triangular wave generating
capacitor connection pin
With this triangular wave, the coil output
waveform is soft switched.
Continued on next page.
300
Ω
300
Ω
36
35
VCC1
5V
34
19
VCC1
17
21
18
VCC1
17 18 19
24
17 18 19
200
Ω
200
Ω
200
Ω
1 / 2 VCC-- VF
1k
Ω
VCC1
5V
40
39



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