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
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