MITSUBISHI M63026

MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[FEATURES]
This IC is 1 chip driv er IC f or spindle motor and 5 channel
actuators. All of the motor and actuator of optical disk driv e
sy stem (CD-ROM etc.) can be driv ed by only this IC.
This IC has a direct PWM control sy stem f or Spindle and
Slide channels driv e due to reducing IC power dissipation.
This IC has three Voltage supply terminals
(f or Spindle,Slide,Focus/Tracking and Loading), and three
v oltage supply can be set separately .
Further more this IC has short braking select f unction,FG
amplif ier, thermal shut down circuit, standby circuit, rev erse
rotation detect circuit.
(Top View)
PIN CONFIGURATION
SL1IN
SL2IN
VM2
RSL2
SL2+
SL2GND
1
42
2
3
41
4
39
5
38
6
37
7
36
RSL1
SL1+
SL1GND
W
V
U
RSP
HwHw+
HVHV+
HuHu+
8
35
9
34
10
33
11
12
32
31
13
30
14
29
15
28
16
27
17
26
18
25
19
24
20
23
21
22
40
OSC
MU1
LOIN+
VM3
MU2
LOLO+
FOFO+
GND
5VCC
TO+
TOGND
TOIN
FOIN
SPIN
REF
FG
HB
VM1
Package outline : 42 PIN POWER SSOP (42P9R-K)
[APPLICATION]
CD-ROM, CD-R/RW,DVD, DVD-ROM, DVD-RAM ,Optical disc related system,etc
[BLOCK DIAGRAM]
023/026 FG X1
024/027 FG X3
FG
FG
s
s
s
s
Reverse
Detect
HU+
HUHV+
HV-
120
MATRIX
Logic
Logic
HW+
HWHall Bias
Current
comp.
CTL
amp.
SPIN
Direction
comp.
CTL
amp.
Current
comp.
CTL
amp.
Direction
comp.
Current
comp.
Direction
comp.
TSD
BIAS
Brake select
REF
Frequency
generator
SL1IN
MU1
MU2
OSC
SL2IN
5V power supply
FOIN
Regulator
TOIN
023/024
X5
023/024
X5
026/027
X12
026/027
X12
( 1
/
17)
X8
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[PIN FUNCTION]
TERMINAL
SYMBOL
TERMINAL FUNCTION
TERMINAL
SYMBOL
1
SL1IN
Slide control Voltage input 1
42
OSC
PWM carrier oscilation set
2
SL2IN
Slide control Voltage input 2
41
MU1
mute /break select terminal 1
3
VM2
Motor Power Suppry 2(for Slide)
40
LOIN+
4
RSL2
Slide current sense 2
39
VM3
Power Supply3(for Loading)
5
SL2+
Slide non-inverted output 2
38
MU2
mute /break select terminal 2
6
SL2-
Slide inverted output 2
37
LO-
Loading inverted output
7
GND
GND
36
LO+
Loading non-inverted output
8
RSL1
Slide current sense 1
35
FO-
Focus inverted output
9
SL1+
Slide non-inverted output 1
34
FO+
Focus non-inverted output
10
SL1-
Slide inverted output 1
33
GND
GND
11
GND
GND
32
5VCC
5V Power Supply(for FS ,TS)
TERMINAL FUNCTION
Loading control input(+)
12
W
Motor drive output W
31
TO+
Tracking non-inverted output
13
V
Motor drive output V
30
TO-
Tracking inverted output
14
U
Motor drive output U
29
GND
GND
15
RSP
Spindle current sensie
28
TOIN
Tracking control Voltage input
16
HW-
HW- sensor amp. input
27
FOIN
Focus control Voltage input
17
HW+
HW+ sensor amp. input
26
SPIN
Spindle control Voltage input
18
HV-
HV- sensor amp. input
25
REF
Reference Voltage input
19
HV+
HV+ sensor amp. input
24
FG
Frequency generator output
20
HU-
HU- sensor amp. input
23
HB
Bias for Hall Sensor
21
HU+
HU+ sensor amp. input
22
VM1
Motor Power Suppry 1(for Spindle)
[FUNCTION]
FO,TO Gain
FG Pulse
M63023FP
5 (V/V)
X 1 (6pulse/rot.)
M63024FP
5 (V/V)
X 3 (18pulse/rot.)
M63026FP
12 (V/V)
X 1 (6pulse/rot.)
M63027FP
12 (V/V)
X 3 (18pulse/rot.)
(2
/
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[ABSOLUTE MAXIMUM RATING ]
SYMBOL
5VCC
(Ta=25 C )
PARAMETER
5V power supply
CONDITIONS
RATING
Unit
7
V
15
V
Focus and Tracking power supply
*note 1
VM1
Motor power supply 1
Spindle power supply
VM2
Motor power supply 2
Slide power supply
15
V
VM3
Motor power supply 3
Loading power supply
15
V
IoA
Motor Output Current A
Focus,Tracking and Loading output current
*note 1
1.0
A
IoB
Motor Output Current B
Spindle output current
*note 1
1.5
A
IoC
Motor Output Current C
Slide output current
*note 1
0.5
A
Vin
Maximum input Voltage
of terminals
MU1,Hw-,Hw+,HV,HV+,Hu-,Hu+,REF,SPIN,MU2
TOIN,FOIN,OSC,SLIN1,SLIN2,LOIN+
Pt
Power dissipation
Free Air and on the grass epoxy board
2.6
W
K0
Thermal derating
Free Air and on the grass epoxy board
20.8
mW / C
0
5VCC
V
Tj
Junction temperature
150
C
Topr
Operating temperature
-20 +75
C
Tstg
Storage temperature
-40 +150
C
*note1 ; The ICs must be operated within the Pt (power dissipation) or the area of safety operation.
In case of the spindle motor to repeat acceleration anddeceleration , the spindle output
Voltage become oVer the area of safety operation. Therefore the spindle channel please
insert capacitor between each spindle output terminals.
(we recommend capacitor value is 6.8nF.)
[RECOMMENDED OPERATING CONDITIONS] (Ta=25 C )
LIMITS
SYMBOL
PARAMETER
Unit
minimum
typical
maximum
6
12
13.2
V
VM1
VM1 power supply (f or Spindle)
VM2
VM2 power supply (f or Slide)
4.5
12
13.2
V
VM3
VM3 power supply (f or Loading)
4.5
12
13.2
V
5VCC
5V power supply (f or FS,TS)
4.5
5
7
V
IoA
Focus, Tracking and Loading Output Current
0.5
0.8
A
IoB
Spindle Output Current
0.5
1.0
A
IoC
Slide Output Current
0.25
0.4
A
120
KHz
Fosc
PWM carrier f requency
30
( 3 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[THERMAL DERATING]
6.0
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 is shown in attached.
(W)
5.0
using N-type board
4.0
using P-type board
3.0
2.0
1.0
0
25
50
75
Ambient Temperature
100
125
150
Ta ( C)
[ELECTRICAL CHARACTERISTICS]
(Ta=25 C, 5VCC=VM3=5V,VM1=VM2=12V unless otherwise noted.)
Common
LIMIT S
SYMBOL
PARAMETER
CONDITIONS
Icc1
Supply current
Icc2
Sleep current
Fosc
PWM carrier f requency
VinREF
REF input Voltage range
IinREF
REF terminal input current
MAX
55
72
mA
(MU1=MU2 = 0V).
0
30
uA
OSC : with 330pF
65
5VCC,VM1, VM2 ,VM3 current
5VCC,VM1, VM2 ,VM3 current under Sleep
VREF=1.65V
3.3
V
-10
+10
uA
0.8
V
2.5
VMU1HI MUTE1 terminal high Voltage MU1
MUTE1 terminal input current MU1
at 5V input Voltage
VMU2LO MUTE2 terminal low Voltage MU2
VMU2HI MUTE2 terminal high Voltage MU2
IM2U
MUTE2 terminal input current MU2
KHz
1.0
VMU1LO MUTE1 terminal low Voltage MU1
IM1U
Unit
TY P
MIN
V
500
uA
0.8
V
2.5
at 5V input Voltage
( 4 /
17)
V
500
uA
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[ELECTRICAL CHARACTERISTICS]
(Ta=25 C, 5VCC=VM3=5V,VM1=VM2=12V unless otherwise noted.)
Spindle
SYMBOL
Vdy c1
Dy namic range of output
Vdead1-
SPIN<REF
[Rev erse]
REF<SPIN
[FORWARD]
Vin1
Control Voltage input range 1 SPIN
GVo1
Control gain 1
Gio1=GVo1/ Rs [A/V]
Vlim1F
Control limit 1F
Vlim1R
VHcom
VHmin
Unit
Io=0.5 [A]
Control Voltage dead zone 1
Vdead1+
LIMITS
CONDITIONS
PARAMETER
MIN
TY P
10.6
11.1
-80
-40
0
0
+40
+80
mV
5
V
0
MAX
V
mV
0.85
1.0
1.15
V/V
Ilim1F=Vlim1F/ Rs [A]
0.4
0.5
0.6
V
Control limit 1R
Ilim1R=Vlim1R/ Rs [A]
0.22
0.28
0.34
V
Hall sensor amp.
common mode input range
Hu+,Hu-,HV+,HV-,Hw+ ,Hw-
1.3
3.7
V
Hall sensor amp. input signal leVel Hu+,Hu-,HV+,HV-,Hw+ ,Hw-
60
VHB
HB output Voltage
at Load current (IHB)=10mA
IHB
HB terminal sink current
MU1=5V
Slide 1,2
0.6
mVp-p
0.85
1.2
V
30
mA
(Ta=25 C, 5VCC=VM3=5V,VM1=VM2=12V unless otherwise noted.)
LIMIT S
SYMBOL
Vdy c2
PARAMETER
Dy namic range of output
Vdead2-
CONDITIONS
Unit
MIN
TY P
at VM2=5[V] RSL=0.9ohm
3.75
at VM2=12[V]
10.3
3.95
10.8
-80
-40
0
mV
REF < SL1IN ,SL2IN
0
+40
+80
mV
0
5
V
Io=0.5 [A]
SL1IN,Sl2IN < REF
MAX
V
Control Voltage dead zone 2
Vdead2+
Vin2
Control Voltage input range 2
SL1IN,SL2IN
GVo2
Control gain 2
Gio2=GVo2/ Rs [A/V]
0.85
1.0
1.15
V/V
Vlim2
Control limit 2
Ilim2=Vlim2/ Rs [A]
0.43
0.5
0.58
V
Tdon
Output turn-on delay
Time after RS is greater than an input instruction value,
while an output turns on.
1.0
2.0
usec
Tdof f
Output turn-of f delay
Time after RS is less than an input instruction value,
while an output turns off.
2.0
3.5
usec
Tdsw
Output switching delay
All output off time at the time of the output drive
direction change
3.0
6.0
usec
Ileak
Output leak current
MU1=MU2=0V
100
uA
-100
( 5 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[ELECTRICAL CHARACTERISTICS]
Loading
(Ta=25 C, 5VCC=VM3=5V,VM1=VM2=12V unless otherwise noted.)
LIMITS
PARAMETER
SYMBOL
Vdy c3-1
Dy namic range of output
CONDITIONS
Unit
VM3=5[V] Io=0.5A
VM1=12[V]
TY P
3.95
4.20
6.9
7.6
3.35
3.55
MAX
V
VM3=12[V] Io=0.5A
Dy namic range of output
R=5.4[ohm]
VM3=4.75V , VM1=12V
Vin3
Control Voltage input range3
LOIN+
GVo3
Control gain 3
Vof f 1
Output of f set Voltage
Vdy c3-2
MIN
V
0
(LO+) - (LO-)
(LOIN+) - (REF)
(LO+) - (LO-)
at LOIN+=REF =1.65V
Focus / Tracking
5
V
16.7
18.1
19.3
dB
-50
0
+50
mV
(Ta=25 C, 5VCC=VM3=5V,VM1=VM2=12V unless otherwise noted.)
LIMITS
PARAMETER
SYMBOL
Vdy c4
Dy namic range of output
Vin4
GVo4
Vof f 2
CONDITIONS
TY P
Io=0.5[A]
4.0
4.25
Io=0.8[A]
3.55
3.95
MAX
Unit
V
VM1=12[V]
Control Voltage input range 4
FOIN,TOIN
Control gain 4
(FO+) -(FO-)
FOIN-REF
(TO+) -(TO-)
TOIN-REF
Output of f set Voltage
MIN
5
0
M63023/024FP
12.6
14.0
15.2
M63026/027FP
20.2
21.6
22.8
0
+30
V
dB
(FO+) -(FO-) at REF=FOIN=1.65V
-30
(TO+) -(TO-) at REF=TOIN=1.65V
mV
NOTE : This IC need condenser between each supply lines and GND f or stoped Oscillation.
[THERMAL CHARACTERISTICS]
FUNCTION START TEMPERATURE OF IC
SYMBOL
PARAMETER
MIN
TSD
FUNCTION STOP TEMPERATURE OF IC
Thermal Shut Down
TY P
MAX
165
MIN
TY P
130
MAX
Unit
C
*note3
This TSD f unction start temperature doesn't show the guaranteed max. temperature of the dev ice.
The guranteed max. temperature is Tj max. which is shown in "9. ABSOLUTE MAXIMUM RATING". The TSD f unction is a
thermal protection in case the temperature of the dev ice goes up abov e Tjmax because of wrong use.
And these TSD temperature are the target temperatures f or circuit design, not the guranteed temperatures.
(The TSD f unction of all the dev ice is not checked by a test in high temperature.)
( 6
/
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
Channel select function
SELECT4
SELECT3
SELECT2
SELECT1
Brake select
Logic control
drive channel
MU1 MU2 Loading Slide1 Slide2 Forcus TrackingSpindle (SPIN<REF)
H
H
Off
On
On
On
On
On
PWM
H
L
Off
On
On
On
On
On
Short
L
H
On
Off
Off
Off
Off
Off
-L
L
Off
Off
Off
Off
Off
Off
--
This IC has two MUTE terminal (MU1 and MU2).
It is possible to control ON / OFF of each channel by external logic inputs.
It has f our kinds of f unction f or select.In case of SELECT1, the bias of all circuit becomes OFF.
Theref ore, this mode is aVailable in order to reduce the power dissipation when the waiting mode.
In case of SELECT2, the bias of other than Loading circuit becomes OFF.
Theref ore, this mode is aVailable in order to reduce the power dissipation when the actiVe mode.
In case of SELECT3,it is possible to select the short braking to take the brake of Spindle motor.
Also,in case of SELECT4,it is possible to select PWM rev erse braking when in the same.
Loading channel
VM3
The loading channel is the circuit of BTL Voltage driv e.
This circuit has the ref erential input.
Output swing is determined with Vin X 8. Also,
it is possible f or this channel to use f or the slide motor ,
the f ocus coil and the tracking coil.
The input terminal is high impedance.
It is possible to do v ariable a gain by external resistor.
In case of one MCU port, if use three state port,
it is possible f or this channel to haVe the stop f unction.
( 7
LO+
Forward
LOIN+
+
LOADING
Channel
Vo
M
-
REF
LO-
/
17)
Rev erse
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
LO-
Output
Voltage [V]
LO+
+
Coil
-
VM3
2
Vo
[LOIN+]- [REF] (V)
Coil
GVo = 8
[V/V]
Vo=[LO+]-[LO-]
=8 X ([LOIN+]-[REF])
LO-
LO+
application.1 : One port H/Z/L control)
Logic control Situation of loading channel
Output Voltage swing
P1
5V
Forward rotation
Vo= 8X(5[V]-REF[V])
XR2/(R1+R2)
Short brake --> Stop
Vo= 0 [V]
Z
(Hi impedance)
Reverse rotation
0
5V
P1
Z
Vo= -8X(5[V]-REF[V])
XR2/(R1+R2)
R1
P1
LOIN+
0V
R2
REF
application.1
(One port H/Z/L control)
( 8 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
SPINDLE channel
current limit
The relationship between the dif f erential 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 f orward torque directions, and the dead zone is f rom
0mV to 80mV (at R1= ,R2=0ohm) .
The coil current gain under the rev erse torque is the same with in f orward
torque directions.And the limitation f unction gets on when the dif f erential
Voltage of VM1(12V) RSP is 0.5V.
Theref ore current-gain-control and current-limit of this IC is determined with
sensing resister v alue, and more detail control can be determined with
setting a gain-resister outer this IC as below.
Forward Torque
lim1F
Dead zone
Gio
CTL -REF (V)
Gio
Dead zone
lim1R
current limit
Rev erse Torque
The example of current-gain and current-limit of SPINDLE.
Ilim1F Ilim1R
Rs
[A]
[A]
[ohm]
Gio* [A/V]
R1=
R2=0 ohm
R1=R2
R2=2XR1
0.50
1.00
0.56
2.00
1.00
0.66
0.75
0.66
0.37
1.33
0.66
0.44
1.00
0.50
0.28
1.00
0.50
0.33
Gio*= R1 / [(R1+R2)XRs] [A/V]
VM1
5V
Rh
Rs
RSP
R2
SPIN
CTL
R1
1.65V
REF
GND
HB
HU+
HUHV+
HVHW+
HWU
V
W
( 9
M
/
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
SLIDE channel
The relationship between the dif f erential 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 f orward torque directions, and the dead zone is
f rom 0mV to 80mV (at R1= ,R2=0ohm)).
The coil current gain under the rev erse torque is the same with in
f orward torque directions.And the limitation f unction gets on when the
dif f erential Voltage of VM2(12V) RSL is 0.5V.
Theref ore current-gain-control and current-limit of this IC is determined
with sensing resister v alue.
Forward
current limit
Gio
Dead zone
SLIN -REF (V)
Dead zone
Gio
current limit
Reverse
VM2
VM2
Rs
Rs
RSL1
RSL2
Forward
R2
SL2IN
CTL
M
R1
REF
1.65V
R2
SL1+
SL1IN
CTL
Forward
M
R1
1.65V
SL1GND
SL2+
REF
SL2GND
Rev erse
Rev erse
The example of current-gain and current-limit of SLIDE.
Gio* [A/V]
Rs
[ohm]
Ilim [A]
R1=
R2=0 ohm
0.50
1.00
2.00
1.00
0.66
0.75
0.66
1.33
0.66
0.44
1.00
0.50
1.00
0.50
0.33
R1=R2
R2=2XR1
Gio*= R1 / [(R1+R2)XRs] [A/V]
( 10 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
FOCUS / TRACKING channel
The f ocus and tracking channel is the Voltage control driv e using BTL .
The f ocus and tracking is the same composition.
The relationship between the dif f erential Voltage between FOIN and REF and the output Voltage
is shown in below Figure.
The Voltage gain [GVo] is 5.0 [V/V].(M63023/024FP)
The Voltage gain [GVo] is 12.0 [V/V].(M63026/027FP)
R
FOIN
Ra
M63023/024FP Ra=2.5R
M63026/027FP Ra=6R
FO-
REF
R
R
Ra
Coil
Ra
5VCC
R
FO+
R
R
Ra
GVo = 5 [V/V](M63023/024FP)
GVo = 12 [V/V](M63026/027FP)
Output
Voltage [V]
FO-
FO+
+
Coil
-
5VCC
2
FOIN- REF (V)
Vo
Coil
Vo=[FO+]-[FO-]
=5 or 12 X (FOIN-REF)
FO-
FO+
( 11 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
Direct PWM operation
The spindle and the slide channel is controlled by the direct PWM control.
Analog input voltage control the driving current which is in proportion to input voltage.
This control is direct PWM control type of motor current chopper.
Also,built-in the current limit circuit. This IC controls the motor current directly.
direct PWM operation as follows;
1) The current which flows on a motor is detected, and current is supplied
from a power supply until it reaches the predetermined instruction value
to which the current is proportional to input voltage.
2) When current reaches an instruction value, an output transistor is changed and
the period coil inertia energy to a career cycle is made to regeneration using an internal path.
3) After repeat 1) and 2).
Therefore, the IC constantly surveillance and control the current value itself use sensor resistor.
Moreover, these ICs built-in current limit circuit so that protect to large current.
Thus, if input excessive control voltage, the current don't flow that settle limit current.
FORWARD Current path timing 1.
FORWARD Current path timing 2.
VM1
Current comp
VM2
VM1
Rs
Current comp
Rs
VM2
RSL
RSL
Current path 1
SL+
SL-
M
SL+
M
SL-
GND
GND
Current path 2
Current
path 1
Control value
Io=Vrs / Rs
Current
path 2
Control value
Motor current
carrier period
Time
( 12 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
PWM carrier frequency setting
PWM carrier f requency 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 f requency
is giVen in f ollowing table.
Capacitor [pF]
820
750
330
220
180
130
110
Carrier Frequency [KHz]
28
30
65
90
110
140
160
*note) This PWM carrier frequency is TYP value.
Recommendation of SHORT BRAKE MODE at SPINDLE drive
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 av oid braking down of
this IC.
(By excessiVe rev erse torque current in braking a motor with PWM-BRAKE f rom high-speed-rotation with being
excessiVe Back-EMF, this IC could be broken.)
The relationship between hall-amplifier-input and output-current-commutation/FG output
at SPINDLE drive
The relationship between the hall elements and the motor output current/FG output is shown in bellow Figure.
Hw+
HV+
Hu+
Hall elements
Hall
input
Outer roter
W
U
V
+
V
U
W
V
V
W
U
U
Output
current
0
-
U
W
V
U
V
Reverse
SPIN < REF
W
FORW ARD
SPIN > REF
W
M63023/026FP
FG
Output
M63024/027FP
( 13 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
FG function at SPINDLE drive
The FG terminal outputs the square pulse signal sy nchronizing with the Hall inputs timing.
And, the FG terminal is open-collector output.
Phase delay circuit at SLIDE
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-of f all output trangister of H bridge f or 3usec.
Output current setting at SLIDE
In this IC, since output tranjister is NPN-ty pe tranjister, motor coil current (Io) is larger than
sensing resistance current about 10mA (TYP.) according to base current of output tranjister.
Theref ore please design output current with consisting these base current.
( 14 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
<I/O circuit>
5VCC
2K
OSC
MU1,MU2
Hu+,HuHv +,Hv Hw+,Hw REF
5VCC
FOIN,TOIN,SPIN
LOIN+,OPIN-
5VCC
5VCC
2K
8K
2K
2K
2K
10K
2K
30K
HB
VM1,RSP,U,V,W
FG
5VCC
5VCC
VM1
5VCC
RSP
U
V
W
GND
VM1
5VCC,VM3,FO+,FO-,TO+,TO-,LO+,LO5VCC
9VMax
REG
VM3
LO+
LO-
TO+
FO+
TO-
FO-
GND
VM1,RSL,SL1+,SL1-,SL2+,SL2VM1
RSL1
SL1+
RSL1
SL1-
SL2+
SL2-
GND
( 15 /
17)
REV010307
MITSUBISHI SEMICONDUCTORS
M63023/024/026/027FP
SPINDLE MOTOR AND 5CH ACTUATOR driveR
[APPLICATION CIRCUIT no.1]
MCU
R12
R11
5 12V
Slide
M
SLIDE
RSL2
RSL1
C3
RSP
M
1
SL1IN
OSC
42
2
SL2IN
VM2
MU1
41
3
LOIN+
40
4
RSL2
VM3
39
5
SL2+
MU2
38
6
SL2-
LO-
37
7
GND
LO+
36
8
RSL1
FO-
35
9
SL1+
FO+
34
10
SL1-
GND
33
11
GND
32
12
W
V
5VCC
TO+
TOGND
30
13
14
R9
C1
D/A
REF
R7
R8
Loading
FS
5 12V
Loading
M
5V power
Focus
Tracking
104
C2
5V
C2
31
TS
29
15
U
RSP
TOIN
28
16
HW-
FOIN
27
17
HW+
SPIN
26
18
HV-
REF
25
19
HV+
FG
24
20
HUHU+
HB
23
VM1
22
21
D/A
R10
R5
R6
R3
R4
R1
1.65V
R2
DSP
10K
*Pull-up
Resistance
12V
Rh
[An example of the values of the external parts]
*These valuesare only example,not the guaranteed values.And the values differ in each application.
External Parts Name
Typ.value
UNIT
0.33
ohm
Ilim1F=1.5A, Ilim1R=1.0A, Gain=3.0A/V
2
ohm
Ilim=0.25A, Gain=0.5A/V
R1, R2, R3, R4, R5, R6
200
10K
ohm
ohm
The Resistor are not necessary in some application.
R7, R8
10K
ohm
The Resistor are not necessary in some application.
C1
330p
F
R9, R10, R11, R12
10K
ohm
C2
C3
10n
F
6.8n
F
RSP
RSL1,RSL2
Rh
note
Fosc=65KHz
The Resistor are not necessary in some application.
( 17 /
17)
REV010307
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.