Datasheet M63020FP Datasheet (Mitsubishi)

M63020FP

( / 17)

MITSUBISHI SEMICONDUCTORS

REV990726

[ Features ]

[ APPLICATION ]

CD-ROM, DVD, DVD-ROM, DVD-RAM ,Optical disc related system,etc

1

LOIN+

TO+

TO-

GND

SPIN

FG

Detect

comp.

Logic

Hall Bias

BIAS

TSD

Regulator

Logic

s

comp.

comp.

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

This IC is 1 chip driver IC for spindle motor and 5 channel
actuators. All of the motor and actuator of optical disk drive
system (CD-ROM etc.) can be drived by only this IC.
This IC has a direct PWM control system for Spindle and Slide
channels drive due to reducing IC power dissipation.

This IC has three voltage supply terminals (for Spindle,
Slide,Focus/Tracking and Loading) , and three voltage
supply can be set separately.

Further more this IC has short braking select function,FG
amplifier, thermal shut down circuit, standby circuit, reverse
rotation detect circuit.

(Top View)

SL1IN
SL2IN

VM2
RSL2
SL2+
SL2-

GND
RSL1

SL1+
SL1-

GND

W

V
U

RSP

Hw-

Hw+

Hv­Hv+

Hu­Hu+

PIN CONFIGURATION

1
2
3
4

5
6

7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

Package outline : 42 PIN POWER SSOP (42P9R-B)

42

OSC

41

MU1

40

LOIN-

39
38

BRS

LO-

37
36

LO+

35

FO-

34

FO+

33

GND

32
31

5VCC

30
29
28

TOIN

27

FOIN

26
25

REF

24

FG

23

HB

22

VM1

[ BLOCK DIAGRAM ]

FG

HU+
HU­HV+
HV­HW+
HW­HB

SPIN

REF

SL1IN

SL2IN

FOIN
TOIN

CTL

amp.

Reverse

MATRIX

Direction

comp.

s s s

120∫

Current

CTL

amp.

Direction

comp.

X5

Current

comp.

X5

CTL

amp.

Direction

Current

Frequency

generator

5V power supply

X5

MU1

OSC

M63020FP

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MITSUBISHI SEMICONDUCTORS

REV990726

2

[ PIN FUNCTION ]

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

TERMINAL

1
2
3

4
5
6
7
8
9

10
11
12
13
14

15
16
17
18
19

20
21

SYMBOL

SL1IN
SL2IN

VM2
RSL2
SL2+
SL2-

GND
RSL1
SL1+

SL1-

GND

W
V
U

RSP

HW-

HW+

HV-

HV+

HU-

HU+

TERMINAL FUNCTION

Slide control voltage input 1
Slide control voltage input 2

Motor Power Suppry 3 (for Slide)

Slide current sense 2

Slide non-inverted output 2

Slide inverted output 2

GND

Slide current sense 1

Slide non-inverted output 1

Slide inverted output 1

GND

Motor drive output W

Motor drive output V

Motor drive output U
Spindle current sensie

HW- sensor amp. input
HW+ sensor amp. input
HV- sensor amp. input
HV+ sensor amp. input

HU- sensor amp. input

HU+ sensor amp. input

TERMINAL TERMINAL FUNCTION

42
41
40
39
38
37
36

35
34
33

32
31

30

29

28
27
26
25

24
23

22

SYMBOL

OSC

MU1
LOIN­LOIN+

BRS

LO­LO+

FO­FO+
GND

TO+

TO-

5VCC

GND GND

TOIN

FOIN

SPIN

REF

FG
HB

VM1

PWM carrier oscilation set

mute 1
Loading control input(-)
Loading control input(+)

Brake select control terminal

Loading inverted output

Loading non-inverted output
Focus inverted output
Focus non-inverted output

GND

Tracking non-inverted output

Tracking inverted output

5V Power Supply (for FS ,TS,LO)

Tracking control voltage input

Focus control voltage input

Spindle control voltage input
Reference voltage input
Frequency generator output

Bias for Hall Sensor

Motor Power Suppry 1 (for Spindle)

M63020FP

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REV990726

3

-20 to +75

-40 to +150

VM2

IoA

Vin

PtTjTopr

Tstg

150

W

Storage temperature

0 to 5VCC

V

[ABSOLUTE MAXIMUM RATING] (Ta=25ºC)

1.0

20.8

2.6

15

15VVM1

5VCC

7VIoB

1.2

VV12

[RECOMMENDED OPERATING CONDITIONS] (Ta=25ºC)

minimum

typical

maximum

Unit

VM1

13.2

A

KHz

A

0.5

0.5V12

VM2

4.5

13.2

6

1.0

0.8

120

30

574.5

when it is used above 0.6A. Discription(IoA) is case of with external shottky diode.

MITSUBISHI SEMICONDUCTORS

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

SYMBOL

Kθ mW / ºC

*note1 ; The ICs must be operated within the Pt (power dissipation) or the area of safety operation

PARAMETER CONDITIONS

5V power supply

Motor power supply 1

Motor power supply 2

Motor Output Current A

Motor Output Current B

Maximum input voltage
of terminals

Power dissipation

Thermal derating

Junction temperature

Operating temperature

Focus,Tracking and Loading power supply

Spindle power supply

Slide power supply

Focus,Tracking and Loading output current

Spindle and Slide output current

MU1,Hw-,Hw+,Hv,Hv+,Hu-,Hu+,REF,SPIN,BRS
TOIN,FOIN,OSC,SLIN1,SLIN2,LOIN-,LOIN+

Free Air and on the grass epoxy board

Free Air and on the grass epoxy board

*note 1

RATING

Unit

V

A
A

ºC
ºC
ºC

The spindle and slide output terminal is needed external shottky diode between each output and GND
when it is used above 0.6A. Discription(IoA) is case of with external shottky diode.

LIMITS

SYMBOL PARAMETER

VM1 power supply(for Spindle)

VM2 power supply(for Slide)

5VCC

IoA
IoB

Fosc

*note2
The spindle and slide output terminal is needed external shottky diode between each output and GND

5V power supply(for FS,TS,LO)

*note 2

SpindleandSlideOutputCurrent

Focus, Tracking and Loading Output Current

PWM carrier frequency

M63020FP

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MITSUBISHI SEMICONDUCTORS

REV990726

[THERMAL DERATING]

ºC)

0255075100

125

150

1.0

2.0

3.0

4.0

5.0

6.0

using N-type board

using P-type board

is shown in attached.

4

65

LIMITS

Unit

[ELECTRICAL CHARACTERISTICS]

60

3.3

0.8

500

1.0

3.0

+10

-10

78

0

30

0.8

430

3.0

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

(W)

Common

SYMBOL

Icc1

PARAMETER

Supply current

Ambient Temperature Ta (

CONDITIONS

5VCC,VM1, VM2 current

This IC's package is POWER-SSOP,
so improving the board on which the IC
is mounted enables a large power
dissipation without a heat sink.

For example, using an 1 layer glass
epoxy resin board, the IC's power
dissipation is 2.6W at least. And it
comes to 3.6W by using an improved 2
layer board.

The information of the N, P type board

(Ta=25ºC, 5VCC=5V,VM1=VM2=12V unless otherwise noted.)

MIN TYP

MU1=5V

MAX

mA

Icc2

Fosc

VinREF

IinREF

VMULO

VMUHI

IMU

BRSLO

BRSHI

IBRS

Sleep current

PWM carrier frequency

REF input voltage range

REF input voltage range

MUTE terminal low voltage

MUTE terminal high voltage

Mute terminal input current

BRS terminal low voltage

BRS terminal high voltage

BRS terminal input current

5VCC,VM1, VM2 current under Sleep

(MU1 = 0V)

OSC : with 330pF

VREF=1.65V

MU1

MU1

MU1

BRS

BRS

BRS

at 5V input voltage

at 5V input voltage

µA

KHz

V

µA

V

V

µA

V

V

µA

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MITSUBISHI SEMICONDUCTORS

REV990726

5

[ELECTRICAL CHARACTERISTICS]

Unit

10.8

10.3

0

1.0

1.15

0.6

30

0.85

0.4

+80

-40

+40

-80

0

0.5

3.7

1.3

60

1.2

0.6

0.85

Io=0.5 [A]

5

0

PARAMETER

CONDITIONS

LIMITS

Unit

0

1.0

1.15

Gio2=Gvo2/ Rs [A/V]

0.58

µsec

µsec

0.85

0.43mV+80

-30

+30

-800Ilim2=Vlim2/ Rs [A]

0.5

2.0

1.0

3.5

2.0

100

-100

µsec

6.0

3.0

0

Io=0.5 [A]

5

10.8

10.3

3.8

3.3

0.34

0.22

0.28

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

Spindle

SYMBOL

Vdyc1

Vdead1-

Vdead1+

Vin1

Gvo1

Vlim1F

Vlim1R

VHcom

VHmin

VHB

IHB

PARAMETER

Dynamic range of output

Controlvoltagedeadzone 1

Controlvoltageinputrange1

Control gain 1

Control limit 1F

Control limit 1R

Hall sensor amp.
common mode input range

Hall sensor amp.

HB output voltage

HB terminal sink current

input signal level

(Ta=25ºC, 5VCC=5V,VM1=VM2=12V unless otherwise noted.)

CONDITIONS

SPIN<REF
REF<SPIN

SPIN

Gio1=Gvo1/ Rs [A/V]

Ilim1F=Vlim1F/ Rs [A]

Ilim1R=Vlim1R/ Rs [A]

Hu+,Hu-,Hv+,Hv-,Hw+ ,Hw-

Hu+,Hu-,Hv+,Hv-,Hw+ ,Hw-

at Load current (IHB)=10mA

MU1=5V

[REVERSE]
[FORWARD]

LIMITS

MIN TYP MAX

V

mV
mV

V

V/V

V

V

V

mVp-p

V

mA

Slide 1,2

SYMBOL

Vdyc2

Vdead2-

Vdead2+

Vin2

Gvo2

Vlim2

Tdon

Tdoff

Tdsw

Ileak

Dynamic range of output

Control voltage dead zone 2

Control voltage input range 2

Control gain 2

Control limit 2

Output turn-on delay

Output turn-off delay

Output switching delay

Output leak current

SL1IN,Sl2IN < REF
REF < SL1IN ,SL2IN

SL1IN,SL2IN

MU1=5v

(Ta=25ºC, 5VCC=5V,VM1=VM2=12V unless otherwise noted.)

MIN TYP MAX

at VM2=5[V]
at VM2=12[V]

V

mV

V

V/V

V

µA

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MITSUBISHI SEMICONDUCTORS

REV990726

6

[THERMAL CHARACTERISTICS]

SYMBOL

PARAMETER

Unit

FUNCTION START TEMPERATURE OF IC

FUNCTION STOP TEMPERATURE OF IC

TSD

160ºC130

[ELECTRICAL CHARACTERISTICS]

Unit

+100

-100

0

5

0

Unit

504.2

3.8

+35

-35014

15.2

12.5

4.0

3.8

14

15.2

12.5

3.2

3.4

-50

0

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

Loading

SYMBOL

Vdyc3-1

Vdyc3-2

Vin3

Gvo3

Voff1-1

Voff1-2

PARAMETER CONDITIONS

Io=0.5[A]

Dynamic range of output

R=5.4[Ω]

Dynamic range of output

Controlvoltageinputrange3

Control gain 3

Output offset voltage

Output offset voltage

5VCC=4.75[V],VM1=12[V]

LOIN+,LOIN-

(LO+) - (LO-)

(LOIN+) - (LOIN-)

(LO+) - (LO-)

(LO+) - (LO-)

Focus / Tracking

SYMBOL PARAMETER CONDITIONS

Vdyc4

Dynamic range of output

Io=0.5[A]

VM1=12[V]

(Ta=25ºC, 5VCC=5V,VM1=VM2=12V unless otherwise noted.)

at LOIN+=LOIN-=5V

at LOIN+=LOIN-=1.65V

(Ta=25ºC, 5VCC=5V,VM1=VM2=12V unless otherwise noted.)

LIMITS

MIN TYP MAX

+50

LIMITS

MIN TYP MAX

V

V

V

dB

mV

mV

V

Vin4

Gvo4

Voff2

NOTE : This IC need condenser between each supply lines and GND for stoped Oscillation.

*note3

The guranteed max. temperature is Tj max. which is shown in "9. ABSOLUTE MAXIMUM RATING". The TSD function is a
thermal protection in case the temperature of the devices goes up above Tjmax because of wrong use.

(The TSD function of all the devices is not checked by a test in high temperature.)

Controlvoltageinputrange4

Control gain 4

Output offset voltage

Thermal Shut Down

This TSD function start temperature doesn't show the guaranteed max. temperature of the devices.

And these TSD temperature are the target temperatures for circuit design, not the guranteed temperatures.

FOIN,TOIN

(FO+) -(FO-)

FOIN-REF

(FO+) -(FO-) at REF=FOIN=1.65V
(TO+) -(TO-) at REF=TOIN=1.65V

MIN TYP MAX MIN TYP MAX

(TO+) -(TO-)

TOIN-REF

V

dB

mV

M63020FP

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MITSUBISHI SEMICONDUCTORS

REV990726

Standby function

Logic

control

Drive

channel

7

Loading channel

LOIN+

LOIN-

Brake select function

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

MU1 Loading Slide1 Slide2 Focus Tracking Spindle

SELECT2
SELECT1

This IC has MUTE terminal (MU1).
It is possible to control ON / OFF of the channel by external logic inputs.
In case of SELECT1, the bias of all circuit becomes OFF.
Therefore, this mode is available in order to reduce the power dissipation when the waiting mode.
In case of SELECT2,the bias of all channel becomes ON.
Regard with making OFF the loading channel in case of SELECT2,please refer to [Loading channel].

BRS SPIN < REF REF < SPIN

L / Open Short Brake Forward

H On On On On On On

L/Open Off Off Off Off Off Off

Hi Reverse Brake Forward

This IC has BRS terminal (BRS).
It is possible for a braking timiming of Spindle drive to select which the short brake or the reverse brake by BRS.
It shuould select the short brake in case of high speed system and please change to the reverse brake when the rotation
speed becomes enough low. It is available when the SPIN voltage is low than the reference voltage.

The loading channel is the circuit of BTL voltage drive. This circuit has the referential input. Output swing is determined with

∆Vin x 5. Also,it is possible for this channel to use for the slide motor , the focus coil and the tracking coil.

The input terminal is high impedance. It is possible to do variable a gain by external resistor.
The output becomes high impedance in case of both input voltage becomes under 0.7 volts. It is possible for the input
terminal to operate from 0 volts.The following table and diagram show an application in case of two MCU port and one MCU
port for the loading motor.In case of one MCU port, if use three state port, it is possible for this channel to have the stop
function.

5VCC

Forward

M

LOADING

Channel

LO+

+

Vo

-

LO-

Reverse

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MITSUBISHI SEMICONDUCTORS

REV990726

Logic

control

Situation of loading channel

Output voltage swing

5v

R2

R3

application.1 (MCU : Two port H/L control)

Logic control

Situation of loading channel

Output voltage swing

(R1/2)+R2+R3

Short brake --> Stop

Vo= 0 [V]

(R1/2)+R2+R3

application.2 (MCU : One port H/Z/L control)

8

LOIN+

5v

LO+

Coil

Coil

-

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

VM3

2

LO-

Output
voltage [V]

Vo

Gvo = 5 [v/v]

Vo=[LO+] – [LO-]

=5 x ([LOIN+] – [LOIN-])

[LOIN+] – [LOIN-] (V)

P1 P2
5V 5V Short brake --> Stop Vo= 0 [V]

0

5V

0 0

5V Reverse rotation Vo= - 5x5xR1/(R1+2xR2)

0

Forward rotation Vo= 5x5xR1/(R1+2xR2)

Off [ High impedance output] Off

LO+

+

LO-

P1
5v Forward rotation Vo= 2.5[V] x5x R2

Z

(Hi impedance)

0

P1

0v

P2

application.1

( Two port H/L control)

5v

0v

Reverse rotation Vo=- 2.5[V] x5x R2

P1

R2

R1

P1

Z
0v

P1

LOIN-

R2

P2

application.2
(One port H/Z/L control)

R1

R1

5V

LOIN+

LOIN-

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MITSUBISHI SEMICONDUCTORS

REV990726

9

SPINDLE channel

M

Rs [Ω]

0.50

0.56

2.00

0.75

0.37

1.33

1.00

0.28

1.00

Gio* [A/V]

1.00

0.66

0.50

0.66

0.44

0.33

1.00

0.66

0.50

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

The relationship between the differential voltage between SPIN and REF and

the torque is shown in right Figure. The voltage gain[Gvo] is 1.0 [V/V].

The current gain[Gio] is 2.0[A/V] (at sensing resistor : 0.5 ohm,and
R1=∞,R2=0ohm) in forward torque directions, and the dead zone is from 0mV
to 60mV (at R1=∞,R2=0ohm) .

The coil current gain under the reverse torque is the same with in forward
torque directions.And the limitation function gets on when the differential
voltage of VM1(12V) to RSP is 0.5V.
Therefore current-gain-control and current-limit of this IC is determined with
sensing resister value, and more detail control can be determined with setting
a gain-resister outer this IC as below.

The example of current-gain and current-limit of SPINDLE.

[A]

Ilim1R

[A]

R1=∞
R2=0 ohm

R1=R2 R1=2• R2

Ilim1F

current limit

lim1F

Dead zone

Gio

Reverse Torque

Forward Torque

Gio

CTL -REF (V)

Dead zone

lim1R

current limit

CTL

1.65v

R2

R1

Gio*= R1 / [(R1+R2) • Rs] [A/V]

VM1

Rs

RSP

HB

HU+

SPIN

HU-

HV+

HV-

HW+

HW-

REF

U
V

W

GND

5V

Rh

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SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

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REV990726

SLIDE channel

10

Rs [Ω]

0.50

1.00

2.00

Ilim [A]

0.75

0.66

1.33

1.00

0.50

1.00

Gio* [A/V]

1.00

0.66

0.50

0.66

0.44

0.33

The relationship between the differential voltage between SLIN and REF
and the torque is shown in right Figure. The voltage gain[Gvo] is 1.0 [V/V].
The current gain is 2.0[A/V] (at sensing resistor : 0.5 ohm and

R1=∞,R2=0ohm) in forward torque directions, and the dead zone is from
0mV to 80mV (at R1=∞,R2=0ohm)).

The coil current gain under the reverse torque is the same with in forward
torque directions.And the limitation function gets on when the differential
voltage of VM2(12V) to RSL is 0.5V.
Therefore current-gain-control and current-limit of this IC is determined with
sensing resister value.

MITSUBISHI SEMICONDUCTORS

Forward

current limit

Gio

Dead zone

CTL

1.65v

R2

R1

SL*IN -REF (V)

VM2 VM2

Rs

SL1IN

REF

RSL1

SL1+

SL1-

GND

Forward

M

Reverse

CTL

R2

R1

1.65v

Gio

Reverse

Rs

RSL2

SL2IN

REF

GND

Dead zone

current limit

Forward

SL2+

M

SL2-

Reverse

The example of current-gain and current-limit of SLIDE.

R1=∞
R2=0 ohm

Gio*= R1 / [(R1+R2) • Rs] [A/V]

R1=R2

R1=2 • R2

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11

FOCUS / TRACKING channel

Coil

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

The focus and tracking channel is the voltage control drive using BTL .
The focus and tracking is the same composition.
The relationship between the differential voltage between FOIN and REF and the output voltage

is shown in below Figure.

The voltage gain [Gvo] is 5.0 [V/V].

FOIN

REF

VM3

R

R

R

R

FO-

2.5R

2.5R

FO-

R

R

FO+

Output

FO+

voltage [V]

VM3

2

Coil

FO+

Vo

+

Coil

-

FOIN – REF (V)

Gvo = 5 [v/v]

Vo=[FO+] – [FO-]

=5 x (FOIN – REF)

FO-

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REV990726

12

FORWARD Current path timing 2.

Direct PWM operation

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

The spindle and the slide channel is controlled by the direct PWM control.
Also,built-in the current limit circuit. This IC controls the motor current directly.

FORWARD Current path timing 1.

VM2 VM2

SL+

Current path 1

M

Current

path 1

SL-

Rs

RSL

GND

Current

path 2

SL+

Control value

M

Current path 2

Rs

RSL

SL-

GND

Control value

Io=Vrs / Rs

Motor current

carrier period

Time

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REV990726

The relationship between hall-amplifier-input and output-current-commutation at SPINDLE DRIVE

PWM carrier frequency setting

+0-

UVWUVWVUW

13

Capacitor [pF]

330

2206590

130

140

Carrier Frequency [KHz]

110

160

180

110

820

7502830

Recommendation of SHORT BRAKE MODE at SPINDLE DRIVE

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

PWM carrier frequency is decided by charging and discharging the capacitor that is connected to OSC terminal
outer IC. Examination of the relationship the capacitor connected to OSC terminal and PWM carrier frequency
is given in following table.

*note) This PWM carrier frequency is TYP value.

This IC has two brake mode, PWM-BRAKE-MODE and SHORT-BRAKE-MODE. In this IC recommendation, SHORT­BRAKE-MODE is superior to PWM-BRAKE-MODE to reducing the power dissipation and to avoid braking down of this IC.
(By excessive reverse torque current in braking a motor with PWM-BRAKE from high-speed-rotation with being excessive
Back-EMF, this IC could be broken.)

The relationship between the hall elements and the motor output current is shown in bellow Figure.

Hall

input

Output

current

Hw+ Hv+ Hu+

V U W

W

U

V

Hall elements

V

FORWARD

U

W

SPIN>REF

Outer roter

REVERSE

SPIN<REF

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REV990726

FG function at SPINDLE DRIVE

Phase delay circuit at SLIDE

for 3µsec.

Output current setting at SLIDE

14

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

The FG terminal outputs the square pulse signal synchronizing with the Hall inputs [Hv+, Hv-] timing.
And, the FG terminal is open-collector output.

Phase delay circuit is built in the IC to detect an output spike current, when the motor current direction
is switching.

In switching the motor current direction, Phase delay circuit switch-off all output trangister of H-bridge

In this IC, since output tranjister is NPN-type tranjister, motor coil current (Io) is larger than sensing
resistance current about 20mA (TYP.) according to base current of output tranjister.
Therefore please design output current with consisting these base current.

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15

I/O circuit

5VCC

5VCC

• VM1, RSP, U, V, W

VM1

RSPUVWGND

• 5VCC, FO+, FO-, TO+, TO-, LO+, LO-

2K2K2K

5VCC

TO-

VM1

9Vmax

FO-

VM2

GND

5VCC

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

• FOIN, TOIN, SPIN
LOIN+, LOIN­OPIN-

2K

• HB • FG

5VCC

• Hu+, Hu­Hv+, Hv­Hw+, Hw-

REF

5VCC

2K

• MU1

• BRS

2K

8K

30K

2K

8K

10K

5VCC

10K

5VCC

4K

• OSC

5VCC

LO+ LO-

GND

• VM2, RSL, SL1+, SL1-, SL2+, SL2-

RSL1

SL1+

TO+

SL1-

RSL1

SL2+

INSIDE
REG

FO+

SL2-

M63020FP

( / 17)

REV990726

Glass-epoxy FR-4

thickness

Size

Board material

1 and 2 layers

thickness : t=18µm

board

[2 layer]

board

[2 layer]

board

[1 layer]

1st layer [TOP view]

2nd layer [BACK view]

[The boards for thermal derating evaluation]

16

Evaluation board

mounted IC

POWER-SSOP

42P9R-B

MITSUBISHI SEMICONDUCTORS

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

70x70mm

t=1.6mm

material : copper

N-type

O-type

P-type

Heat sink

Lead

Chip

M63020FP

( / 17)

MITSUBISHI SEMICONDUCTORS

REV990726

17

[APPLICATION CIRCUIT no.1]

HW-

VM1

M

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

5 to 12v

Slide

SLIDE

R12

R11 R10
R9

1

SL1IN

2

SL2IN

3

RSL2

M

RSL1

RSP

4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

VM2
RSL2

SL2+

SL2­GND

RSL1

SL1+

SL1-

GND

W

V
U

RSP

HW+
HV-

HV+

HU-

HU+

Rh

OSC

MU1

LOIN-

LOIN+

BRS

LO-

LO+

FO-

FO+

GND

TO+

TO-

5VCC

GND
TOIN
FOIN

SPIN

REF

FG
HB

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

C1

R8

R5 R6
R3 R4

R1

1.65v

REF

R7
R7

Loading

M

104

FS

TS

R2

10K

*Pull-up Resistance

MCU

D/A
D/A

5V power
Focus
Tracking

5V

DSP

12v

External Parts Typ Unit Notes
RSP
RSL1, RSL2
Rh

0.33
2

200

R1, R2, R3, R4, R5, R6 10K
R7, R8 10K

Ω

Ilim1F=1.5A, Ilim1R=1.0A, Gain=3.0A/V

Ω

Ilim=0.5A, Gain=1A/V

Ω
Ω

This is difficult for your specification.

Ω

This is difficult for your specification.

C1 330p F Fosc=65KHz

R9, R10, R11,R12
D1, D2, D3
R13, R14, R15, R16

C2, C3, C4, C5

10K

– V

22

10n F

Ω

This is difficult for your specification.

Recommend VF<0.5V at IL=1.0A

Ω