MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M56758FP is a semiconductor integrated circuit designed for a
actuator driver used for MD, CD-audio, etc. This device can
function 5-channel-actuators by 1 chip due to include 5 channel
BTL drivers.
Sufficient output dynamic range can be obtained by low supply
voltage because saturation voltage of power output is low. All
channels include level shift circuit in order that output swings most
suitably although reference voltage of signal disposal system in
each system becomes 1.5V. And, differential PWM control is
possible since all channels are composed of Differential input
structure. Also, as this device includes general purpose OP amp, it
is suited to wide-ransing application. Further more, this devise is
able to power save since it includes mute circuit.
REG+
1
42
CH3IN
REGB
2
41
OUT3
IN1+
3
40
IN3-
VBS1
4
39
VBS2
Vm1
5
38
Vm2
IN1-
6
37
IN3+
OUT1
7
36
N.C
VM1-
8
35
VM3-
VM1+
9
34
VM3+
M56758FP
FEATURES
10
GND
● 3.3V DSP available
● Low saturation voltage.
(Typical 1.35V at load current 0.5A and no bootstrap condition.)
Absolute maximum rating of load current: CH1 – 5 500mA
A bootstrap function is available.
● There are two motor power supplies.
Vm1 CH1, 2
motor power supply-1
Vm2 CH3, 4, 5 motor power supply-2
● Built-in OP amp. for Regulator. (Enables Regulator structure by
using external PNP Tr. and resistor.)
● Flexible Input amp. setting.
Enables PWM control.
● Low cross-over distortion.
● Wide supply voltage range. (4.5V – 13.2V)
● Built-in Thermal protection.
● Built-in Mute circuit. (two systems)
MUTE1: CH1 – 4, MUTE2: CH5
11
33
GND
32
VM2+
12
31
VM4+
VM2-
13
30
VM4-
OUT2
14
29
VM5+
IN2-
15
28
VM5-
IN2+
16
27
OUT5
MUTE1
17
26
IN5-
MUTE2
18
25
IN5+
SS.GND
19
24
IN4+
VREF
20
23
IN4-
VREFO
21
22
OUT4
Outline 42P2R-D
N.C: no connection
APPLICATION
MD, CD-audio, CD-ROM, VCD, DVD etc.
BLOCK DIAGRAM
Vm1
VBS1
VBS2
Vm2
VBS2
+
×5
VM2(+)
+
-
CH2
VM2(-)
+
×5
Vm2
-
+
Vm1
VREFO
VBS1
SLEEP
Low,Open
MUTE ON
VBS1
+
VBS2
REGB
Hi: Sleep
BIAS
- VBS1
+
E2
VREFO
VREF
VREG
1–4
CH
VREF
+
CH3
VM3(+)
×8
+
VM3(-)
CH4
VM4(+)
×8
+
VM4(-)
VBS2
OUT2
-
VBS2
Vrefm2
Vrefm1
VBS1
IN2IN2+
R
IN3IN3+
OUT3
CH3IN
+
5CH
VBS2
VBS2
CH5
VM5(+)
×8
+
VM5(-)
TSD
1.25V
VBS2
E5
REG+
MUTE1
SS.GND
IN4IN4+
OUT4
E4 +
+
VM1(-)
-
E3
+
CH1
+
VM1(+)
R
VBS1
+
-
R
R
+
+ VBS1
E1
IN1+
IN1OUT1
MUTE2
GND (4PIN)
+
IN5IN5+
OUT5
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
PIN FUNCTION
Pin No.
1
2
3
4
5
6
7
8
9
10 , 11
12
13
14
15
16
17
18
19
20
21
Symbol
REG+
REGB
IN1+
VBS1
Vm1
IN1OUT1
VM1(-)
VM1(+)
GND
VM2(+)
VM2(-)
OUT2
IN2IN2+
MUTE1
MUTE2
SS.GND
VREF
VREFO
Function
Pin No.
Regulator voltage setting resistor
Regulator PNP base connect
E1 amplifier non-inverted input
Bootstrap power supply
Motor power supply
E1 amplifier inverted input
E1 amplifier output
CH1 inverted output
CH1 non-inverted output
Motor GND
CH2 non-inverted output
CH2 inverted output
E2 amplifier output
E2 amplifier inverted input
E2 amplifier non-inverted input
CH1 – 4 mute
CH5 mute
Small signal GND
Reference voltage input
Reference voltage output
42
41
40
39
38
37
36
35
34
32 , 33
31
30
29
28
27
26
25
24
23
22
Symbol
CH3IN
OUT3
IN3VBS2
Vm2
IN3+
N.C
VM3(-)
VM3(+)
GND
VM4(+)
VM4(-)
VM5(+)
VM5(-)
OUT5
IN5IN5+
IN4+
IN4OUT4
Function
CH3 non-inverted input
E3 amplifier output
E3 amplifier inverted input
Bootstrap power supply
Motor power supply
E3 amplifier non-inverted input
N.C
CH3 inverted output
CH3 non-inverted output
Motor GND
CH4 non-inverted output
CH4 inverted output
CH5 non-inverted output
CH5 inverted output
E5 amplifier output
E5 amplifier inverted input
E5 amplifier non-inverted input
E4 amplifier non-inverted input
E4 amplifier inverted input
E4 amplifier output
ABSOLUTE MAXIMUM RATING (Ta = 25°C)
Symbol
VBS
Vm
Io
Vin
Pt
Kθ
Tj
Topr
Tstg
Parameter
Bootstrap power supply
Motor power supply
Output Current
Maximum input voltage
of terminals
Power dissipation
Thermal derating
Junction temperature
Operating temperature
Storage temperature
Conditions
VBS power supply
Vm power supply
, 6 , 15 , 16 , 17 , 18 , 20 PIN
, 23 , 24 , 25 , 26 , 37 , 40 , 42 PIN
Free Air
Free Air
3
1
Rating
Unit
15
15
500
0 – VBS1
0 – VBS2
1.2
9.6
150
-20 – +75
-40 – +150
V
V
mA
V
V
W
mW/°C
°C
°C
°C
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
RECOMMENDED OPERATING CONDITIONS
Symbol
Vm1, Vm2
VBS1,VBS2
Parameter
Limits
Typ.
5.0
Vm* + 1.0
Min.
Motor power supply
Bootstrap power supply
Max.
Units
V
V
ELECTRICAL CHARACTERISTICS (Ta = 25°C, VBS = Vm = 5V unless otherwise noted)
Symbol
ICC1
Parameter
Min.
—
Limits
Typ.
35
Max.
50
—
1.3
2.2
mA
—
1.35
1.9
V
-41
-41
-47
-47
-47
—
—
—
—
—
41
41
47
47
47
mV
mV
mV
mV
mV
{VM1(+) – VM1(-)}
(OUT1 – VREFO)
4.5
5
5.5
V/V
{VM2(+) – VM2(-)}
(OUT2 – VREFO)
4.5
5
5.5
V/V
Conditions
Supply current - 1
VBS1, VBS2, Vm1, Vm2 current
ICC2
Supply current - 2
VBS1,VBS2,Vm1,Vm2 current at Sleep Mode
(MUTE1 and MUTE2 are inputted to Low).
Vsat1
Ch1 – 5 Saturation voltage
Voff1
Voff2
Voff3
Voff4
Voff5
CH1 output offset voltage
CH2 output offset voltage
CH3 output offset voltage
CH4 output offset voltage
CH5 output offset voltage
CH1 Voltage Gain between
input and output
Gain1
Gain2
CH2 Voltage Gain between
input and output
Top and Bottom saturation voltage.
Load current 0.5A and no bootstrap.
VREFO = OUT1 = 1.5V
VREFO = OUT2 = 1.5V
VREFO = CH3IN = 1.5V
VREFO = OUT4 = 1.5V
VREFO = OUT5 = 1.5V
Units
mA
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
ELECTRICAL CHARACTERISTICS (Ta = 25°C, VBS = Vm = 5V unless otherwise noted)
Symbol
Parameter
Conditions
Min.
Limits
Typ.
Max.
Units
Gain3
CH3 Voltage Gain between
input and output
{VM3(+) – VM3(-)}
(CH3IN – VREFO)
7.2
8
8.8
V/V
Gain4
CH4 Voltage Gain between
input and output
{VM4(+) – VM4(-)}
(OUT4 – VREFO)
7.2
8
8.8
V/V
Gain5
CH5 Voltage Gain between
input and output
7.2
8
8.8
V/V
VinE
E1, 2, 3, 4, 5 amplifier
input voltage range
VoutE
E1, 2, 3, 4, 5 amplifier
output voltage range
{VM5(+) – VM5(-)}
(OUT5 – VREFO)
E1, E2 amp
E3, E4, E5 amp
E1, E2 amp (no add)
E3, E4, E5 amp (no add)
0.5
0.5
0.5
0.5
—
—
—
—
VBS1-2.0
VBS2-2.0
VBS1-0.5
VBS2-0.5
V
V
V
V
VofE
E1, 2, 3, 4, 5 amplifier offset
voltage
Vin = 1.5V (at buffer)
-10
—
+10
mV
IinE
E1, 2, 3, 4, 5 amplifier input
current
IN+ = IN- = 1.5V
-1.0
-0.05
0
µA
Reg-out
Regulator output voltage
range
At VBS = 7.5V,Regulator voltage setting
resistor 10K/30K, connects external PNP.
4.8
5.0
5.2
V
1.0
—
VBS1-2.0
V
-10
-1.0
—
2.0
—
-0.05
—
—
+10
0
0.8
—
mV
µA
V
V
—
170
250
µA
VofVREF
IinVREF
Vmute-on
Vmute-off
VREF amplifier input voltage
range
VREF amplifier offset voltage
VREF amplifier input current
Mute-on voltage
Mute-off voltage
Imute
Mute terminal input current
VinVREF
Vin = 1.5V ±2mA load
VREF = 1.5V
Mute-on
Mute-off
Mute terminal input current
(at 5V input voltage)
MUTE Function.
M56758FP has 2 MUTE terminals and the functions are as follows.
MUTE1
MUTE2
17 pin
18 pin
High
High
Low/Open
High
High
Low/Open
Low/Open Low/Open
Power and Control Amp.
circuit of CH1 to CH4.
ENABLE
DISABLE
ENABLE
DISABLE
Power and Control Amp.
circuit of CH5.
ENABLE
ENABLE
DISABLE
DISABLE
The Sleep Mode means when MUTE1 and MUTE2 are inputted to Low voltage.
VREF Amp.
ENABLE
ENABLE
ENABLE
DISABLE
VREG Amp.
ENABLE
ENABLE
ENABLE
ENABLE
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
INPUT AND OUTPUT CHARACTERISTICS OF EACH CHANNELS
CH1, 2
<INPUT>
Vm1
OUT
+
r
r
Vrefm1
1.5V
0.2V
Vrefm1 Amp.
R
2.5R
VREFO
+
+
VREF
1.5V
VM+
R
2.5R
R
2.5R
Vref Amp.
OUT
+
-
+
IN-
VM+
<OUTPUT>
VM-
0.5V
Vrefm1
(Vm/2)
0.5V
VM-
IN+
Input Amp.
R
2.5R
Gain = ×5
Reference 1.5V
CH3
<INPUT>
Vm2
CH3IN
Vrefm2
+
r
r
1.5V
0.2V
Vrefm2 Amp.
4R
R
VREFO
1.5V
+
+
VREF
CH3IN
VM3+
R
R
OP+
OP Amp.
VM3-
0.8V
Vrefm2
(Vm/2)
4R
+
-
+
OP-
VM3+
4R
Vref Amp.
OPOUT
<OUTPUT>
0.8V
VM3-
4R
R
Reference 1.5V
Gain = ×8
CH4, 5
<INPUT>
Vm2
OUT
Vrefm2
+
r
r
1.5V
0.2V
Vrefm2 Amp.
R
4R
VREFO
+
VREF
1.5V
<OUTPUT>
IN-
R
4R
R
4R
IN+
+
Input Amp.
R
+
-
VM+
VM+
-
Vref Amp.
OUT
Reference 1.5V
+
0.8V
Vrefm2
(Vm/2)
0.8V
VM-
4R
Gain = ×8
VM-
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
INPUT AND OUTPUT EQUIVALENT CIRCUIT
(1) E1, E2 input amplifier input and output equivalent circuit
(2) E3, E4, E5 input amplifier
input and output equivalent circuit
IN3+, IN3-, OUT3, IN4+, IN4-, OUT4
IN5+, IN5-, OUT5
IN1+, IN1-, OUT1, IN2+, IN2-, OUT2
VBS2
VBS1
E3 amplifier isn’t include.
VBS1
GND
VBS1
GND
IN*-
GND
IN*+
VBS1
GND
VBS2
GND
IN*-
OUT*
(3) VREF amplifier input and output
equivalent circuit
VBS2
GND
IN*+
VBS2
OUT*
(4) VREG amplifier input and output
equivalent circuit
VREF, VREFO
REG+, REGB
VBS1
VBS2
1.25V
.
9.5K
2K
GND
VBS1
GND
VREF
VBS1
VREFO
(5) CH3IN input equivalent circuit
VBS2
GND
GND
REG+
REGB
(6) MUTE equivalent circuit
MUTE1, MUTE2
Please show the application circuit.
(about inside circuit structure)
MUTE*
VBS1
GND
2K
23K
VBS2
GND
VBS2
23K
CH3IN
GND
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
INPUT AND OUTPUT EQUIVALENT CIRCUIT
(7) CH1,CH2 power amplifier output
equivalent circuit
VM1(+), VM1(-), VM2(+), VM2(-)
The equivalent circuit of the output stage of power amplifier are
shown in (7) and (8).
The power supply of CH1, CH2 are Vm1.
And power supply of CH3, CH4, CH5 are Vm2.
Also, the source side of a power amplifier output is organized by
the structure of PNP and NPN.
In case of the CH1 and CH2, a emitta of PNP is connected to VBS1
and in case of the CH3, CH4 and CH5, it connected to VBS2 and it
can adjust from outside.
VBS1
Vm1
VM
[About bootstrap advantage]
Power amplifier output is the preceding structure, and if the high
voltage (recommended Vm*+1V)
are provided from outside, the output swing can be large value
(more than VBS* = Vm*).
Please use of this structure at system of many power supply.
If the bootstrap circuit is organized from outside and it provide to
VBS*, it will be the same effect.
And the bootstrap can decrease the saturation voltage of power
amplifier output, so if it swings motor and actuator, the power
dissipation of this device will be decreased.
GND
(8) CH3, CH4, CH5 power amplifier output
equivalent circuit
VM3(+), VM3(-), VM4(+), VM4(-), VM5(+), VM5(-)
VBS2
Vm2
VM
GND
THERMAL DERATING
6.0
(W)
With infinite heatsink
Power Dissipation (Pdp)
5.0
4.0
Used board
Size:190×140mm
Thickness: 1mm
Glass epoxy on both sides
At mounted on a board
3.0
Without heatsink
2.0
1.9
1.2
1.0
0
25
50
75
100
125
150
(°C)
Ambient Temperature (Ta)
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
APPLICATION CIRCUIT NO. 1 single input (linear signal) · Direct voltage control
5V
VREFO
VBS1
VBS2
R
Vref
Vm2
Vrefm2
+ -
5V
R
VREFO
1.5V
VREF
R
Vm1
+ -
Vrefm1
IN3+
+ -
IN1OUT1
+ -
IN1+
VREFO
VCTL1
- +
R
5V
VREFO
IN3-
E3
E1
VCTL3
OUT3
R6
R2
R1
+ -
VM1+
×4
VM3-
E2
R4
IN4+
E4
×2.5
+ -
+ -
VM2+
VREFO
IN4-
TRACKING
VCTL4
OUT4
+ -
×4
R8
M
×8
VM4-
+ -
×4
SLED
×2.5
VBS
R7
VM4+
+ -
×5
VM2-
SPINDLE
R3
×8
+ -
+ -
VCTL2
×2.5
M
+ -
IN2OUT2
VM3+
+ -
Ra
FOCUS
×4
IN2+
VREFO
CH3IN
×2.5
×5
VM1-
R5
REGB
3V
+ -
14K
REG+
IN5+
10K
E5
+ -
Reg-amp
VREFO
IN5-
1.25V
VCTL5
OUT5
R10
SS.GND
SLEEP
×4
VM5+
+ -
MUTE1
5CH
1 – 4CH
GND
(4PIN)
+ -
×4
SS.GND
M
×8
TSD
VM5-
ROADING
Hi: Sleep
MUTE2
R9
MITSUBISHI <CONTROL / DRIVER IC>
M56758FP
5 CHANNEL ACTUATOR MOTOR DRIVER
APPLICATION CIRCUIT NO. 2
Differential PWM input · Direct voltage control (FOCUS, TRACKING, SPINDLE, SLED, ROADING)
5V
VREFO
VBS1
VBS2
+ R
Vrefm1
+ -
IN3+
+ -
R2
C1
IN1OUT1
R2
E3
E1
+ -
IN1+
IN3 -
C3
R1
R1
Vm1
R5
R
VREF
R6
5V
1.5V
R5
PWM1
PWM2
Vrefm2
VREFO
PWM2
Vref
PWM1
R
Vm2
- +
R
5V
R6
OUT3
C3
C1
R7
E2
R7
VM3-
+ -
+ -
IN2OUT2
IN4+
C4
IN4R8
E4
×2.5
R8
OUT4
C4
×5
×4
VREFO
M
VBS
×8
SLED
×2.5
VREFO
VM4+ -
×4
+ -
14K
R10
REGB
3V
IN5+
Reg-amp
E5
10K
+ -
REG+
C5
+ -
VM2-
VM4+
+ -
IN5R10
1.25V
OUT5
SS.GND
C5
R9
×4
VM5+
+ -
SLEEP
5CH
1 – 4CH
×8
TSD
GND
(4PIN)
+ -
×4
SS.GND
M
MUTE2
VM5-
ROADING
Hi: Sleep
PWM1
MUTE1
R9
PWM1
TRACKING
PWM2
+ -
VM2+
+ -
R3
C2
PWM2
R3
R4
SPINDLE
×8
×4
IN2+
M
+ -
×2.5
R4
C2
VM3+
PWM2
×4
It can be opened at Propagation
characteristic check.
PWM1
×2.5
×5
VM1-
VREFO
CH3IN
+ -
Ra
FOCUS
VREFO
+ -
VM1+
VREFO