LA6502 データシートの表示（PDF） - SANYO -> Panasonic

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LA6502

5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch

SANYO -> Panasonic 

LA6502

Block Diagram (In certain applications, snubber may be added to the spindle motor coil output.)

AMP1IN-

AMP1IN+

AMP1OUT

OUT1F

VCC

OUT1R

AMP2IN-

AMP2IN+

AMP2OUT

OUT2F

OUT2R

AMP4IN+

OUT4F

AMP4IN-

OUT4R

SPFGO

0.015μF

SPC1

SPC2

0.015μF

--

+

--

+

1 / 2(VCC2 -- VF)

--

+

--

+

--

+

1 / 2(VCC1 -- VF)

--

+

Rotor position

detection circuit

Mask circuit

Startup control Timing

circuit

control circuit

Soft switching

drive circuit

PLL

0.47μF

SPVCOIN

SPCX

0.01μF

SPCTL

VREF

200Ω

+

--

200Ω

0.1μF

VCO

560kΩ

FR

1/8

--

+

FC

VREF

AMP3IN-

AMP3IN +

AMP3OUT

OUT3F

OUT3R

AMPIN-

AMPIN+

AMPOUT

VCC1

SPRF

MCOM

TSD

MUTE

UOUT

VOUT

WOUT

MGND

MUTE1

MUTE2

MUTE3

SGND

No.7816-5/11

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