Mitsubishi M56749FP Datasheet

MITSUBISHI <CONTROL / DRIVER IC>

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M56749FP

4 CHANNEL ACTUATOR MOTOR DRIVER

DESCRIPTION

The M56749FP is a semiconductor integrated circuit designed for a
CD-ROM actuator driver.
This device can function 4 channel actuators by 1 chip due to
include 4 channel BTL drivers.
Also, this device include a mute circuit, a Vcc check circuit and
TSD function.

FEATURES

●Lower saturation voltage.
(typical 1.35V at load current 500mA)

●Wide supply voltage range.
(4.5V to 13.2V)

●Lower cross-over distortion.

APPLICATION

CD-ROM

PIN CONFIGURATION(TOP VIEW

Vrefm-out

Mute3ch­Mute4ch-

Vctl1L

Vctl1H

VM1(-

VM1(+

GND

VM2(+)

VM2(-)

Vctl2H

Vctl2L

Vm1

Vbs1

Vcc

1
2
3
4

7
8

10

13
14
15 22
16 21
17
18

36
35
34
33
325
316
30

M56749FP

29
289
27
2611
2512
24
23

20
19

Vref
Vrefm
SS . GND

Vctl4L
Vctl4H
VM4

VM4(+

GND

VM3
VM3(­Vctl3(-)
Vctl3(+)

Vm2
Vbs2

-Por

BLOCK DIAGRAM

Vctl1L

4

Vctl1H

5

VM1

VM1(-

Vctl2L

Vctl2H

VM2(+

VM2(-

+

7

-

-

6

+

15
14

+

12

-

-

13

+

Vm1 Vbs1

+

-

CH1

+

-

CH2

Vref Vrefm

36 18 19 35 1 20 2116 17

+

-

Mute on : Low or open

3ch

Vcc -Por

- POR

Vm2

4ch

Vm2

2

TSD

Vrefm-out

+

-

Outline 36P2R-D

Vm2

Vbs2

CH4

CH3

+

-

+

-

-

+

+

-

+

-

­+

33
32

30

31

22

23

25

24

Vctl4L
Vctl4H

VM4

VM4(-

Vctl3(+

Vctl3(-

VM3(+

VM3

8 11 26 293432

–

Mute3ch-

Mute4ch-

SS.GND

PGND (8PIN

–

)

PIN DESCRIPTION

Pin No. Function

1
2
3
4
5
6
7

8 11

to

12
13
14
15
16
17
18

Symbol
Vrefm-out
Mute3ch­Mute4ch­Vctl1L
Vctl1H
VM1(-)
VM1(+)
GND
VM2(+)
VM2(-)
Vctl2H
Vctl2L
Vm1
Vbs1
Vcc

Vm2 middle voltage output
3th channel mute terminal

4th channel mute terminal
1st channel Low gain input
1st channel High gain input
1st channel inverted amp. output
1st channel non-inverted amp. output
GND
2nd channel non-inverted amp. output
2nd channel inverted amp. output
2nd channel High gain input
2nd channel Low gain input
Motor power supply-1
Bootstrap power supply-1
5V power supply

MITSUBISHI <CONTROL / DRIVER IC>

4 CHANNEL ACTUATOR MOTOR DRIVER

Pin No. Symbol

19

-Por

20

Vbs2

21

Vm2

22

Vctl3(+)

23

Vctl3(-)
VM3(-)

24

25

VM3(+)

26 29

GND

to

30

VM4(+)

31

VM4(-)
Vctl4H

32

Vctl4L

33
34

SS. GND

35

Vrefm

36

Vref Reference voltage input

M56749FP

Function
Vcc check signal output
Bootstrap power supply-2
Motor power supply-2
3th channel non-inverted amp. input
3th channel inverted amp. input
3th channel inverted amp. output

3th channel non-inverted amp. output

GND
4th channel non-inverted amp. output
4th channel inverted amp. output
4th channel High gain input
4th channel Low gain input
Small signal GND
Vm2 middle voltage monitor

ABSOLUTE MAXIMUM RATINGS(Ta=25˚C

Symbol Rating
Vbs
Vm
Vcc
Io
Vin
Pt
Kθ
Tj
Topr
Tstg

Bootstrap power supply
Motor power supply
5V power supply
Output Current
Maximum input voltage of terminals
Power dissipation
Thermal derating
Junction temperature
Operating temperature
Storage temperature

Parameter Conditions

17 20

and pins input voltage

16 21

and pins input voltage

18

pin input voltage

2 3 4 5 14 15 19 22 23 32 33 35 36

, , , , , , , , , , , , pins
Free Air
Free Air

0 – Vcc

-20 – +70

-40 – +150

RECOMMENDED OPERATING CONDITIONS

Symbol

Vcc V5.04.5
Vm1,Vm2
Vbs1,Vbs2

5V power supply
Motor power supply
Bootstrap power supply

Min.

Limits

Typ.

5.0

Vm+1.0

Max.

5.5

UnitParameter

V
V

15
15

7.0

700

1.2

9.6

150

Unit

V
V
V

mA

V

W

mW/˚C

˚C
˚C
˚C