Mitsubishi M56786FP Datasheet

MITSUBISHI <CONTROL / DRIVER IC>

)

M56786FP

SPINDLE MOTOR AND 1CH ACTUATOR DRIVER

DESCRIPTION

The M56786FP is a semiconductor integrated circuit in order to
drive the spindle motor and 1ch actuator.

FEATURES

● 3.3V DSP available.

● Low power dissipation & low motor echo noise.

● Large power dissipation package(Power Package).

● High motor drive current .

● Wide dynamic range.

● Motor current control for both motor torque directions.

● Reverse torque mode select [SHORT BRAKING,etc].

● Sleep mode.

● FG signal output terminal.

● FG pulse select.

● Automatic stop.

● Low saturation voltage

● Wide power supply voltage range(4.5V–13.2V)

APPLICATION

CD-ROM, DVD,DVD-ROM,DVD-RAM etc.

PIN CONFIGURATION(TOP VIEW

ECR

1
2

EC

3

S/S

BRS

4

FGS

FG

7

VCC1

8

10

GND

12
13

14

15 28

HB

16

Hu+

Hu-

17
18

Hv+

19

Hv-

20

Hw+

21

Hw-

42
41
40
39
385
376
36
35
349

M56786FP

33
3211
31
30
29

27
26
25
24
23
22

IN­IN+
MUTE

OUT­V

DD+
DD-

V
OUT+

GND

U
V
W
TP
CI
R

S
CC2

V

BLOCK DIAGRAM

CURRENT
SENSE & LIMIT

BRAKING
MODE
CHANGE

REVERSE

DETECT

FG
&
SELECT

RS

VCC2

BRS

FG

FGS

I

C

24

23

22

4

6

5

Outline 42P9R-D

UVW VCC1

28 26

+-

17

16

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

27

120°

MATRIX

+- +

19 20

18

S/S

3 740

GND

SPM
BIAS

Sleep

spm ch1

-

21

TSD

HALL
BIAS

15
HB

MUTE

CH1
BIAS

CONTROL

RR

VDD-

EC

2

+

-

CH1

X8

V

CC2

ECR

1

VDD+

VCC2

B2B1

4142
IN+IN-

8 to 14

GND

29 to 35

GND

V

DD+

38

+

-

+

-

V

CC2

25
TP

OUT+

36

OUT-

39

DD-

V

37

PIN DESCRIPTION

MITSUBISHI <CONTROL / DRIVER IC>

M56786FP

SPINDLE MOTOR AND 1CH ACTUATOR DRIVER

1
2
3
4
5
6
7

–

8 14

15
16
17
18
19
20
21

Symbol FunctionPin No.

ECR The reference voltage for EC
EC Motor speed control

S/S Start / Stop for spindle driver
BRS Reverse torque mode select
FGS FG pulse select
FG Frequency generator output
V

CC1 5V supply voltage

GND

GND

Bias for Hall SensorHB
Hu+ Hu+ Sensor amp. input
Hu- Hu- Sensor amp. input
Hv+ Hv+ Sensor amp. input
Hv- Hv- Sensor amp. input
Hw+ Hw+ Sensor amp. input
Hw- Hw- Sensor amp. input

Pin No.

22
23
24
25
26
27
28

–

29 35

36
37
38
39
40
41
42

Symbol

CC2 12V supply voltage

V
R

S Motor current sense

CI Phase Compensation
TP Test Note1

W

Motor drive output W
V Motor drive output V
U Motor drive output U

GND GND
OUT+ Non-inverted output of actuator driver

VDD- GND of actuator driver
VDD+ Power supply of actuator driver
OUT- Inverted output of actuator driver

MUTE Mute of actuator driver
IN+ Non-inverted input of actuator driver
IN- Inverted input of actuator driver

*Pull-up resistors (10kohm) are included in the circuits connected to pin[FG].
*Note1. The pin TP is test terminal. Please make an open the pin TP.

ABSOLUTE MAXIMUM RATING (Ta=25˚C)

Symbol
RS
VCC2
V

CC1 Power supply 1 voltage

V

DD+ Power supply 3 voltage

Motor supply voltage
Power supply 2 voltage

Parameter

Io1 SPM Output current
Io2 ATC Output Current
VH(c) Sensor amp. Differential input range

Vin Maximum voltage of input terminals
Pt Power dissipation

Kθ
Tj
Topr
Tstg

Thermal derating
Junction temperature
Operating temperature
Storage temperature

*Note2 ; The ICs must be operated within the Pt (power dissipation) or the area of safety operation.
*Note3 ; The 25 pin[Tp] is a test terminal. Please make open this terminal.
*Note4 ; Please don't connect directly the external power supply to the26 , 27 ,28 ,36, 39 , 23 ,15, 6 ,24 pin.

Conditions Unit

23 pin 15 V
22 pin
7 pin
38 pin

Note 2
Note 2

16 – 21 pins

1 , 2 , 3 , 4 , 5 , 16 – 21 , 40 pin

23 , 41 , 42 pin

Free Air
Free Air

Function

Rating

15

7.0
15

1.2

0.7

4.5

0–V

CC1
CC2

0–V

1.2

9.6

150

-20–+75

-40–+125

V
V
V
A
A
V
V
V

W

mW/˚C

˚C
˚C
˚C

RECOMMENDED OPERATING CONDITIONS

Symbol

CC1

V

VDD+
Io1
Io2

Power supply 1
Power supply 2VCC2
Power supply 3
SPM Output drive current
ACT Output drive current

Parameter

4.5

Limits

12.0

12.04.5

Max.Typ.Min.

5.55.04.5

13.2

13.2
700
700

Unit

V
V

V
mA
mA

MITSUBISHI <CONTROL / DRIVER IC>

SPINDLE MOTOR AND 1CH ACTUATOR DRIVER

ELECTRICAL CHARACTERISTICS

(VCC1=5V, VCC2=12V, VDD+=5V, VDD-=GND, Ta=25˚C unless otherwise noted.)

Symbol Conditions UnitParameter

V

Isleep

Icc
Vsat

ECdead­ECdead+
ECR
EC
Gio
Vlim

VH com

VHmin
VHb

IHb

Von

Voff

V

iH1

ViM

V

iL1

Sleep Mode Supply current

Supply current
Saturation voltage

Control voltage dead zone
Reference voltage Input range

Control voltage Input range
Control gain
Control limit
Hall sensor amp

common mode input range
Hall sensor amp.

input signal level
Hall bias terminal output voltage

Hall bias terminal sink current

Motor start voltage

Motor stop voltage

BRS input high voltage

BRS input middle voltage

BRS input low voltage

CC1 & VCC2 pin total Current

(at S/S pin, MUTE pin low or open)
VCC1 & VCC2 pin total Current

(EC=ECR=1.65V) [S/S pin, MUTE pin High]
Top and Bottom saturation voltage.(Load current:500mA)

EC<ECR
EC>ECR

1 pin(it is possible to input 0 to 5V)
2 pin(it is possible to input 0 to 5V)

Io=Gio/Rsense [A/V]
Ilim=Vlim/Rsense [A]

16 – 21 pins

23 – 28 pins

Load current (IHb)=10mA.

[S/S]pin input voltage when it starts up the motor.
*The IC is in the active condition.
*The hall bias is available.

[S/S]pin input voltage when it stops the motor.
*The IC is in the sleep condition.
*The hall bias is off.

BRS input voltage that the short braking is selected
when the reverse torque.

BRS input voltage that the free run is selected when the
reverse torque.

BRS input voltage that the reverse braking is selected
when the reverse torque.

M56786FP

Limits

Min.

0.34

0.27

1.3

60

0.6

2.0

3.6

1.6

Typ.

19

1.2

-30
0
0
0

+30

1.65

1.65

0.4

0.3

120

0.85

Max.

10

28

1.9
0-60

+60

3.3

3.3

0.46

0.33

CC1-1.3

V

1.2

30

0.8

2.2

0.8

µA

mA

V

mV

V
V

V/V

V
V

mVp-p

V

mA

V

V

V

V

V

*Note3. The ViM is the limit in case of external voltage input control. The free run mode is selected when the BRS pin is open, too.