MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
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
Vrefm-out
1
36
Vref
Mute3ch-
2
35
Vrefm
Mute4ch-
3
34
SS . GND
Vctl1L
4
33
Vctl4L
Vctl1H
5
32
Vctl4H
FEATURES
VM1(-)
6
31
VM4(-)
●Lower saturation voltage.
VM1(+)
7
30
VM4(+)
TSD function.
M56749FP
(typical 1.35V at load current 500mA)
8
●Wide supply voltage range.
9
GND
(4.5V to 13.2V)
10
●Lower cross-over distortion.
APPLICATION
29
28
27
GND
11
26
VM2(+)
12
25
VM3(+)
VM2(-)
13
24
VM3(-)
Vctl2H
14
23
Vctl3(-)
Vctl2L
15
22
Vctl3(+)
Vm1
16
21
Vm2
Vbs1
17
20
Vbs2
19
-Por
CD-ROM
Vcc
18
Outline 36P2R-D
BLOCK DIAGRAM
Vm1 Vbs1
16
17
Vref
Vcc
-Por
Vrefm
Vrefm-out
36
18
19
35
1
+
Vctl1L
4
Vctl1H
5
VM1(+) 7
VM1(-)
6
Vbs2 Vm2
20
21
- POR
+
-
+
-
Vm2
33 Vctl4L
32 Vctl4H
+
+
Vm2
2
CH1
+
-
CH4
+
+
30 VM4(+)
31 VM4(-)
22 Vctl3(+)
+
-
Vctl2L 15
+
-
Mute on : Low or open
23 Vctl3(-)
Vctl2H 14
VM2(+) 12
VM2(-) 13
+
+
4ch
3ch
TSD
CH2
CH3
2
3
34
Mute3ch-
Mute4ch-
SS.GND
8
–
11 26
–
PGND (8PIN)
29
+
+
25 VM3(+)
24 VM3(-)
MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
to
11
12
13
14
15
16
17
18
Symbol
Vrefm-out
Mute3chMute4chVctl1L
Vctl1H
VM1(-)
VM1(+)
GND
VM2(+)
VM2(-)
Vctl2H
Vctl2L
Vm1
Vbs1
Vcc
Function
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
Pin No.
19
20
21
22
23
24
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
25
26
to
29
30
31
32
33
34
35
5V power supply
36
Symbol
-Por
Vbs2
Vm2
Vctl3(+)
Vctl3(-)
VM3(-)
VM3(+)
GND
VM4(+)
VM4(-)
Vctl4H
Vctl4L
SS. GND
Vrefm
Vref
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
Reference voltage input
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C)
Symbol
Vbs
Vm
Vcc
Io
Vin
Pt
Kθ
Tj
Topr
Tstg
Parameter
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
Conditions
and 20 pins input voltage
16 and 21 pins input voltage
18 pin input voltage
17
2 , 3 , 4 ,
Free Air
Free Air
5
,
14 , 15 , 19 , 22 , 23 , 32 , 33 , 35 , 36
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Vcc
5V power supply
Vm1,Vm2 Motor power supply
Vbs1,Vbs2 Bootstrap power supply
Min.
4.5
Limits
Typ.
5.0
5.0
Vm+1.0
Max.
5.5
Unit
V
V
V
pins
Rating
15
15
7.0
700
0 – Vcc
1.2
9.6
150
-20 – +70
-40 – +150
Unit
V
V
V
mA
V
W
mW/˚C
˚C
˚C
˚C
MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
ELECTRICAL CHARACTERISTICS (Ta=25˚C, Vcc=Vbs1=Vbs2=Vm1=Vm2=5V, no-load current unless otherwise noted.)
Symbol
Icc1
Icc2
Vsat
Vofs1
Vofs2
VPor
Parameter
Sleep Mode Supply current-1
Sleep Mode Supply current-2
Conditions
16
,
17 , 20 , 21
Min.
pins input current (Vref=Vctl=2.1V)
pin input current (Vref=Vctl=2.1V)
Top and Bottom saturation voltage.
Saturation voltage
Load current 500mA.
1st, 2nd channel. Vref=Vctl=2.1V, Vm1=5V
Output offset voltage-1
Output offset voltage-2
3th, 4th channel. Vref=Vctl=2.1V,Vm2=Vbs2=12V
Vcc voltage when 19 pin (-POR circuit)
Vcc check voltage ( 19 pin L to H)
returns to High from Low condition.
18
∆VPor
Vcc check circuit Hysteresis
Vmute-on Mute-on voltage
Vmute-off Mute-off voltage
Imute
Mute terminals input current
VrefmL
Vref amp. Low output voltage
VrefmH
Vref amp. High output voltage
Vrefin
Vref amp. Input voltage range
3th and 4th channels Mute-on.
3th and 4th channels Mute-off.
2 and 3 pin input current at 5V input voltage.
1 pin output voltage at load current 1.0mA when Vrefm
( 35 pin) inputs 0V.
1 pin output voltage at load current 0.5mA when Vrefm
( 35 pin) inputs 5V.
36
pin input voltage range.
Limits
Typ.
20
3.0
Max.
30
6.0
1.35
1.90
V
+26
+100
mV
mV
-26
-100
Unit
mA
mA
4.10
4.25
4.40
V
80
130
180
0.8
170
250
mV
V
V
µA
0.15
0.3
V
2.0
Vbs2- Vbs21.9
2.25
1.5
2.1
V
Vcc-1.2
V
Voltage gain of each channel
Symbol
Parameter
Conditions
Min.
Limits
Typ.
Max.
Unit
Gain1L
1st channel voltage gain (L)
{VM1(+)–VM1(-)}
(Vctl1L–Vref)
(Vctl1L=
4
pin)
8.86
9.77
10.6
db
Gain1H
1st channel voltage gain (H)
{VM1(+)–VM1(-)}
(Vctl1H–Vref)
(Vctl1H=
5
pin)
14.6
15.6
16.4
db
Gain2L
2nd channel voltage gain (L)
{VM2(+)–VM2(-)}
(Vctl2L–Vref)
(Vctl2L=
15
pin)
11.1
12.0
12.9
db
Gain2H
2nd channel voltage gain (H)
(Vctl2H=
14
pin)
14.5
15.4
16.2
db
Gain3
3th channel voltage gain
(Vctl3(+)= 22 pin)
(Vctl3(-)= 23 pin)
-3.07
1.94
-1.33
db
Gain4L
4th channel voltage gain (L)
{VM4(+)–VM4(-)}
(Vctl4L–Vref)
(Vctl4L=
11.1
12.0
12.9
db
Gain4H
4th channel voltage gain (H)
{VM4(+)–VM4(-)}
(Vctl4H–Vref)
(Vctl4H= 32 pin is
connected 10kΩ)
14.4
15.3
16.1
db
{VM2(+)–VM2(-)}
(Vctl2H–Vref)
{VM3(+)–VM3(-)}
Vctl3(+)–Vctl3(-)
33
pin)
MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
Input and output characteristics of each channels
The voltage between the input and output
when a voltage is inputted from Vctl( 4 pin).
<Channel 1 Amp.>
Output of non-inverted Amp.
(Gain = X2.0)
+
-
Vref 36
Vctl1L
Vctl1H
10K
4
Reference
voltage
(Vref=2.1V)
+
-
5
5K
7.5K
(Unit of resistance: Ω)
+
-
7 VM1+
+
-
6 VM1-
Vctl1L <INPUT>
Vref
(2.1V)
VM1- <OUTPUT> VM1+
Vref
(2.1V)
Output of inverted Amp.
(Gain = X2.0)
non-inverted Amp.
(Gain = X2)
+
-
Vctl2L
7.5K
Reference
voltage
(Vref=2.1V)
+
-
15
Vctl2H 14
5K
7.5K
+
-
12 VM2+
+
-
13 VM2-
Vref
(2.1V)
Vref
(2.1V)
inverted Amp.
(Gain = X2)
+
10K
2K
Vctl3+ 22
+
10K
2K
Reference
voltage
(Vrefm=
Vm2/2)
+
-
25 VM3+
Vin4
2.0V
+
-
24 VM3-
VM3Vrefm
(Vm2/2)
inverted Amp.
(Gain = X2)
+
-
+
7.2K
Reference
voltage
(Vrefm=
Vm2/2)
inverted Amp.
(Gain = X5)
1V
Vctl3+
VM3+
0.8V
Vctl4H ( 32 pin) is connected 10kΩ and the voltage
between a input (Vin4) and out when a voltage is
inputted from Vin4.
non-inverted Amp.
(Gain = X5)
Vctl4L
33
10kΩ
18K
32
2K
Vctl4H
VM2+
2.0V
Vctl3Vref
(2.1V)
<Channel 4 Amp.>
Vref 36
Vctl2L
1V
The voltage difference of 1V is inputted
between Vctl3- and Vctl3+.
non-inverted Amp.
(Gain = X2)
Vctl3- 23
1.5V
VM2-
<Channel 3 Amp.>
Vref 36
1.5V
The voltage between the input and output
when a voltage is inputted from Vctl2( 15 pin).
<Channel 2 Amp.>
Vref 36
1V
+
-
30 VM4+
+
-
31 VM4-
Vref
(2.1V)
Vin4
1V
VM4Vrefm
(Vm2/2)
3.0V
3.0V
VM4+
MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
BASICALLY CHARACTERISTICS (Typical value)
Output saturation voltage and Load current characteristic (Vbs=Vm=Vcc=5V)
5.0
(V)
Top side saturation voltage
0.84
0.89
0.95
1.00
Output voltage
4.0
1.05
3.0
This device can use this voltage value
for actuator drive.
2.0
1.0
0.06
0.18
0.12
0.24
0.30
Bottom side saturation voltage
100
200
300
Load current
400
500 (mA)
FREQUENCY CHARACTERISTIC
40
(dB)
180
(dB)
20
90
GAIN
GAIN 0
0 PHASE
PHASE
-20
-90
-40
-180
0.03 0.06 0.1
0.3 0.6
1
3
6
Frequency
THERMAL DERATING
Power dissipation (Pdp) (W)
6.0
With infinite heatsink
5.0
4.5
4.0
Without heatsink
3.0
2.0
1.2
1.0
0
25
50
75
100 125
Ambient temperature (Ta) (˚C)
150
10
30
60 100
300 600
(kHZ)
MITSUBISHI <CONTROL / DRIVER IC>
M56749FP
4 CHANNEL ACTUATOR MOTOR DRIVER
APPLICATION CIRCUIT
1
Vrefm-out
3ch
4ch
25K
2
Mute3ch-
OP1
25K
23K
Vm2
10K
23K
OP1
10K
3
Mute4ch-
36
Vref
2.1V
35
Vrefm
34
SS . GND
5V
4
Vctl1L
5
Vctl1H
6
VM1-
Tracking
7
VM1+
1ch
10K
OP1
OP1
18K
5K
7.5K
7.2K
2K
PA
PA
10K
10K
10K
2.5K 12.5K 10K
10K 5K
33
Vctl4L
32
Vctl4H
31
VM4-
M
Slide
30
VM4+
4ch
10
GND
Focus
13
VM2-
2ch
14
Vctl2H
15
Vctl2L
5V
5K
10K 5K
11
GND
28
GND
27
GND
10K
PA +
26
GND
PA +
5K
10K 5K
10K
29
GND
2.5K 12.5K
10K 5K
9
GND
12
VM2+
PA +
PA +
8
GND
10K
10K
10K
10K
PA
PA
10K
2K
5K
7.5K
25
VM3+
M
24
VM3-
3ch
23
Vctl3 -
OP1
7.5K
22
Vctl3+
OP1
2K
10K
16
Vm1
21
Vm2
12V
TSD
17
Vbs1
12V
20
Vbs2
Vcc
18
Vcc
(Unit of resistance: Ω)
the Bootstrap function does not use,
* When
terminals ( and pins).
16
21
Tray
17
and
20
20K
19
- Por
-Por
pin must be connected with Motor power supply