SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

DESCRIPTION

This M63022FP 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.

APPLICATION

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

system,etc

PIN CONFIGURATION (TOP VIEW)

Outline 42P9R-K/B

BLOCK DIAGRAM

3022F

SL1IN

SL2IN

VM2

RSL2

SL2+

SL2-

GND

RSL1

SL1+

SL1-

GND

RSP

Hw-

Hw+

Hv-

Hv+

Hu-

Hu+

OSC

5VCC

MU1

VM3

LOIN+

FO-

FO+

TO+

TO-

GND

LO-

LO+

GND

FOIN

TOIN

SPIN

REF

BRS

VM1

Reverse

Detect

120

MATRIX

CTL

amp.

Current

comp.

Direction

comp.

CTL

amp.

Current

comp.

Direction

comp.

Logic

BIAS

TSD

HU+

HU-

HV+

HV-

HW+

HW-

REF

SPIN

SL1IN

TOIN

FOIN

TO-

MU1

RSP

VM2

RSL1

SL1+

SL1-

VM1

OSC

Frequency

generator

VM1

X12

FO+

FO-

GND

Regulator

Reg

X12

Logic

RSL2

SL2+

SL2-

Current

comp.

Direction

comp.

SL2IN

LO+

LO-

BRS

LOIN+

5V power supply

CTL

amp.

VM3

Hall Bias

TO+

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

DESCRIPTIN OF PIN

Pin No.

Symbol

Function

Pin No.

Symbol

Function

SL2+

SL2-

HW-

HW+

HV-

RSL1

RSP

Slide non-inverted output 2

Slide inverted output 2

Slide current sense 1

Motor drive output U

Spindle current sensie

HV- sensor amp. input

GND

HW+ sensor amp. input

HW- sensor amp. input

HV+

HV+ sensor amp. input

HU-

HU- sensor amp. input

HU+

HU+ sensor amp. input

SL1+

Slide non-inverted output 1

SL1-

Slide inverted output 1

GND

TO-

Motor drive output W

Motor drive output V

VM2

Motor Power Suppry 2(for Slide)

SL2IN

Slide control voltage input 2

RSL2

SL1IN

TO+

SPIN

Slide control voltage input 1

Tracking non-inverted output

Tracking control voltage input

5V Power Supply(for FS ,TS)

Bias for Hall Sensor

Frequency generator output

FOIN

Focus control voltage input

TOIN

Spindle control voltage input

FO-

Focus inverted output

LO+

Loading non-inverted output

LO-

Loading inverted output

BRS

REF

FO+

Focus non-inverted output

Reference voltage input

VM1

Tracking inverted output

Slide current sense 2

Brake select control terminal

Motor Power Suppry 1(for Spindle)

OSC

PWM carrier oscilation set

VM3

Power Supply3(for Loading)

MU1

LOIN+

mute 1

Loading control input(+)

RECOMMENDED OPERATING CONDITIONS

(Ta=25˚C, unless otherwise noted)

Symbol

Unit

Parameter

Limits

VM1

VM1 power supply (for spindle)

min.

typ.

max.

13.2

VM2

VM3

4.5

13.2

IoA

IoB

Spindle Output Current

1.0

0.5

13.2

0.8

–

4.5

–

0.5

PWM carrier frequency

120

kHz

–

Fosc

4.5

IoC

Slide Output Current

0.4

0.25

–

VM2 power supply(for Slide)

VM3 power supply(for Loading)

5V power supply(for FS,TS)

Focus, Tracking and Loading Output Current

Symbol

Unit

Parameter

ABSOLUTE MAXIMUM RATINGS

(Ta=25˚C, unless otherwise noted)

VM2

Motor power supply 2

VM3

Motor power supply 3

Ratings

5V power supply

Conditions

VM1

Motor power supply 1

Slide power supply

Loading power supply

IoA

Motor Output Current A

1.0

IoB

Motor Output Current B

1.5

Spindle output current Note1

Vin

Maximum input voltage of terminals

0~5V

MU1,Hw-,Hw+,Hv-,Hv+,Hu-,Hu+,REF,SPIN,

BRS,TOIN, FOIN, OSC,SLIN1,SLIN2,LOIN+

Power dissipation

2.6

mW/˚C

Thermal derating

20.8

˚C

Junction temperature

150

˚C

opr

Operating temperature

-20~+75

˚C

stg

Storage temperature

-40~+150

Spindle power supply

IoC

Motor Output Current C

0.5

Slide output current Note1

Focus and Tracking power supply

Focus,Tracking and Loading output current Note1

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

Free air and on the grass epoxy board 70mmX70mmX1.6mm

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

TYPICAL CHARACTERISTICS

AMBIENT TEMPERATURE Ta (˚C)

Power dissipation

(Pdp)W

100

4.0

6.0

2.0

3.0

5.0

1.0

125

150

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,O type board is

shown in attached.

Using N-type board:3.6W

Using P-type,O-type

board:2.6W

+10

ELECTRICAL CHARACTERISTICS

(Ta=25˚C, 5V

=VM3=5V,VM1=VM2=12V unless otherwise noted.)

Icc2

IinREF

Typ.

Max.

Min.

Limits

Parameter

Test conditions

Symbol

Unit

Supply current

REF input voltage range

Sleep current

0.8

VMULO

VMUHI

MUTE terminal high voltage

5VCC,VM1, VM2 ,VM3 current

kHz

MUTE terminal low voltage

VinREF

Icc1

PWM carrier frequency

Fosc

IMU

Mute terminal input current

500

Common

5VCC,VM1, VM2 ,VM3 current under Sleep (MU1=0V)

OSC : with 330pF

VREF=1.65V

MU1

BRSLO

BRS terminal low voltage

0.8

BRS

BRSHI

BRS terminal high voltage

BRS

IBRS

BRS terminal input current

BRS at 5V input voltage

Vdyc1

Dynamic range of output

Io=0.5 [A]

Vdead1-

Control voltage input range 1

SPIN<REF [REVERSE]

Vdead1+

+80

REF<SPIN [FORWARD]

Vin1

Control voltage input range 1

SPIN

Gvo1

Control gain 1

1.15

V/V

Gio1=Gvo1/ Rs [A/V]

Vlim1F

Control limit 1F

0.6

Ilim1F=Vlim1F/ Rs [A]

Vlim1R

Control limit 1R

0.34

Ilim1R=Vlim1R/ Rs [A]

VHcom

Hall sensor amp.common mode input range

3.7

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

VHmin

Hall sensor amp.input signal level

mVp-p

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

VHB

HB output voltage

1.2

at Load current (IHB)=10mA

IHB

HB terminal sink current

MU1=5V

Vdyc2

Dynamic range of output

at VM2=5[V]

Vdead2-

Control voltage dead zone 2

SL1IN,SL2IN < REF

Vdead2+

+80

REF < SL1IN ,SL2IN

Vin2

Control voltage input range 2

SL1IN,SL2IN

Gvo2

Control gain 2

1.15

V/V

Gio2=Gvo2/ Rs [A/V]

Vlim2

Control limit 2

0.58

Ilim2=Vlim2/ Rs [A]

Tdon

Output turn-on delay

2.0

sec

Tdoff

Output turn-off delay

3.5

sec

1.0

-10

3.0

3.3

Spindle

11.0

-40

+40

1.0

0.5

0.28

0.85

10.5

-80

0.85

0.4

0.22

1.3

0.6

Tdsw

Output switching delay

6.0

sec

Ileak

Output leak current

100

MU1=5v

Slide1,2

at VM2=12[V]

Io=0.5 [A]

3.8

10.8

-40

+40

1.0

0.5

1.0

2.0

3.0

3.3

10.3

-80

0.85

0.43

-100

MU1 at 5V input voltage

430

The time taken to turn on the output after the Rs voltage goes above the

command value.

The time taken to turn off the output after the Rs voltage goes down the

command value.

The time when all the output Tr.s are turned off during the switching of the

output Tr.

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

THERMAL CHARACTERISTICS

Typ.

Max.

Min.

Function stop temperature of ic

Parameter

Symbol

Unit

Thermal shut down

TSD

Typ.

Max.

Min.

Function start temperature of ic

130

160

˚C

Note 3. This TSD function start temperature doesn't show the guaranteed max. temperature of the devices.

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.

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

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

Standby function

SELECT2

SELECT1

Logic control

Drive channel

MU1

L/Open

Off

Slide1

Slide2

Focus

Tracking

Spindle

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.

ELECTRICAL CHARACTERISTICS

(Ta=25˚C, 5V

=VM3=5V,VM1=VM2=12V unless otherwise noted.)(cont.)

Min.

Max.

Min.

Limits

Parameter

Test conditions

Symbol

Unit

Dynamic range of output

Control gain 3

+50

4.2

Voff1

Io=0.5[A]

VM1=12[V]

Output offset voltage

Gvo3

Vdyc3-1

Control voltage input range 3

Vin3

LOIN+

(LO+) - (LO-)

Vdyc4

Control voltage input range 4

Io=0.5[A],VM1=12[V]

Vin4

Control gain 4

FOIN,TOIN

22.8

Gvo4

Output offset voltage

Voff2

Output offset voltage

16.7

-50

3.8

19.3

-47

VM3=5[V]

VM3=12[V]

(LOIN+) - (REF)

(LO+) - (LO-)

at LOIN+=REF=1.65V

3.9

6.9

7.6

18.1

Focus/Tracking

20.2

4.2

21.6

+47

Dynamic range of output

R=5.4[

Ω

], VM3=4.75V,VM1=12V

Vdyc3-2

3.3

3.5

FOIN-REF

(FO+)-(FO-)

TOIN-REF

(TO+)-(TO-)

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

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

Note 2. This IC need condenser between each supply lines and GND for stoped Oscillation.

Brake select function

L/Open

SPIN<REF

Reverse

Short

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.

BRS

REF<SPIN

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

Loading channel

LOIN+

REF

LO+

LO-

Forward

Reverse

VM3

Channel

The loading channel is the circuit of BTL voltage drive. This circuit

has the referential input. Output swing is determined with

∆

Vin X 8.

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.

In case of one MCU port, if use three state port, it is possible for

this channel to have the stop function.

LO+

LO-

LO+

LO-

Coil

Gvo = 8 [v/v]

Output

voltage [V]

VM3

Vo=[LO+]-[LO-]

=8 X([LOIN+]-[REF])

[LOIN+]-[REF] (V)

LOIN+

application.1

(One port H/Z/L control)

REF

Logic control

(Hi impedance)

Situation of loading channel

Output voltage swing

Forward rotation

Short brake --> Stop

Reverse rotation

Vo=8X(5[V] -REF[V] )

XR2/(R1+R2)

Vo=-8X(5[V] -REF[V] )

XR2/(R1+R2)

Vo= 0 [V]

Application.1 (One port H/Z/L control)

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

Spindle channel

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 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 VM1(12V)~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.

Gio*= R1 / [(R1+R2)•Rs] [A/V]

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

Rs [

Ω

]

0.50

0.56

2.00

Ilim1R

[A]

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

R1=

∞

R2=0 ohm

R1=R2

R1=2•R2

1.00

Ilim1F

[A]

0.66

0.50

REF

SPIN

RSP

1.65v

CTL

VM1

HU+

HU-

HV+

HV-

HW+

HW-

GND

CTL -REF (V)

Dead zone

Gio

Dead zone

lim1F

lim1R

IL(A)

Forward Torque

Reverse Torque

current limit

SPINDLE MOTOR AND 5CH ACTUATOR DRIVER

M63022FP

MITSUBISHI SEMICONDUCTOR (LSI)

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)~RSL is 0.5V.

Therefore current-gain-control and current-limit of this IC is

determined with sensing resister value.

Slide channel

Forward

Reverse

1.65V

CTL

REF

SL1IN

RSL1

SL1+

SL1-

GND

Forward

Reverse

1.65V

CTL

REF

SL2IN

RSL2

SL2+

SL2-

GND

VM2

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

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

R1=

∞

,R2=0ohm

R1=R2

0.66

0.44

0.33

R1=2•R2

SL*IN -REF (V)

IL (A)

current limit

Gio

Forward

Reverse

current limit

Dead zone

Gio

Gio*= R1 / [(R1+R2)•Rs] [A/V]