IP4001
5-CH MOTOR DRIVE IC
DESCRIPTIONS
The IP4001 is a monolithic integrated circuit, and
suitable for 5-ch motor driver which drives focus
actuator, tracking actuator, sled motor, spindle motor
and Tray motor of CDP & V-CD system.
28SSOP H/S
FEATURES
ORDER INFORMATION
- 1ch(forward-reverse) control DC motor driver
- 4ch BTL(Balanced Transformerless) driver
- Built-in TSD (Thermal shutdown) circuit
- Built-in 5V regulator with an internal NPN TR
- Built-in mute circuit
- Built-in Tray motor speed control circuit
- Wide operating supply voltage range: 6.5V~13.2V
Device
Package
Operating Temp
IP4001
28SSOPH-375
-35 OC ~ +85 OC
IP4001TF
28SSOPH-375
-35 OC ~ +85 OC
BLOCK DIAGRAM
PGND2
DO4-
DO4+
IN4
IN4A
REF
VCC2
28
27
26
25
24
23
22
D
D
(FIN)
VCC1
CTL
IN3
DO3+
DO3-
DO5-
DO5+
21
20
19
18
17
16
15
D
D
D
D
10K
10K
Level Shift
Level Shift
Level Shift
MSC
10K
10K
TSD
REGULATOR
D
10K
PWR
TR
Level Shift
D
1
2
3
4
5
6
7
DO1-
DO1+
IN1
IN1A
N/C
REO
MUTE
August. 2002 (Rev.7)
20K
20K
3.3K
10K
3.3K
VCC2
D
IN2
BIAS
Level Shift
10K
IN1
MUTE
2.5V
10K
SWITCH
(FIN)
D
8
9
10
11
12
13
14
SGND
FWD
IN2
DO2+
DO2-
PGND1
REV
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-1-
IP4001
5-CH MOTOR DRIVE IC
PIN CONNECTIONS
PGND2 DO427
28
DO4+
26
IN4
25
IN4A
24
REF
23
VCC2
22
(FIN)
VCC1
21
CTL
20
IN3
19
DO3+
18
DO317
DO516
12
13
DO5+
15
IP4001
1
2
3
4
5
6
7
DO1-
DO1+
IN1
IN1A
N/C
REO
MUTE
8
(FIN)
9
SGND
FWD
10
11
IN2
DO2+
14
DO2- PGND1 REV
PIN DESCRIPTIONS
NO
SYMBOL
I/O
DESCRIPTION
NO
SYMBOL
I/O
1
DO1-
2
O
CH1 OUTPUT (-)
15
DO5+
O
CH5 OUTPUT (+)
DO1+
O
CH1 OUTPUT (+)
16
DO5-
O
CH5 OUTPUT (-)
3
IN1
I
CH1 INPUT 1
17
DO3-
O
CH3 OUTPUT (-)
4
IN1A
I
CH1 INPUT 2
18
DO3+
O
CH3 OUTPUT (+)
5
N/C
-
19
IN3
I
CH3 INPUT
6
REO
O
REGULATOR
OUTPUT
20
CTL
I
7
MUTE
I
MUTE
INPUT
21
VCC1
I
8
SGND
-
SIGNAL
GROUND
22
VCC2
I
9
FWD
I
CH5 INPUT 1
23
REF
I
CH BIAS INPUT
10
IN2
I
CH2 INPUT
24
IN4A
I
CH4 INPUT 1
11
DO2+
O
CH2 OUTPUT (+)
25
IN4
I
CH4 INPUT 2
12
DO2-
O
CH2 OUTPUT (-)
26
DO4+
O
CH4 OUTPUT (+)
13
PGND1
-
27
DO4-
O
CH4 OUTPUT (-)
14
REV
I
28
PGND2
-
August. 2002 (Rev.7)
NO-CONNECTION
POWER GROUND 1
CH5 INPUT 2
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DESCRIPTION
CH5 MOTOR SPEED
CONTROL
SUPPLY VOLTAGE 1
(CH2,CH3,CH5)
SUPPLY VOLTAGE 2
(CH1,CH4,SIGNAL,REG)
POWER GROUND 2
-2-
IP4001
5-CH MOTOR DRIVE IC
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS
SYMBOL
VALUE
UNIT
Maximum supply voltage
Vccmax
15
V
Power dissipation
Pd
2.3 *
W
Operating temperature
Topr
-35 ~ +85
O
Storage temperature
Tstg
-55 ~ 150
O
Maximum output current
Iomax
1
C
C
A
Note>
1. When mounted on 50mm X 50mm X 1mm PCB (Phenolic resin material).
2. Power dissipation reduces 18.4 mW/OC for using above Ta=25O C
3. Do not exceed Pd and SOA.
Power Dissipation (W)
POWER DISSIPATION CURVE
3
2
1
SOA
0
25
50
75
100
125
150
175
Ambient Temperature (°C)
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTICS
SYMBOL
VALUE
UNIT
Supply voltage 1
Vcc1
6.5 ~ 13.2
V
Supply voltage 2
Vcc2
6.5 ~ 13.2
V
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS
(Ta = 25O C, VCC1=VCC2=8V, RL=8ohm, unless otherwise specified.)
CHARACTERISTICS
Quiescent circuit current
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Icc
-
-
10
-
mA
-
2.5
5
mA
Mute on current
Imute
Pin7=GND
Mute on voltage
Vmon
-
-
-
0.5
V
Mute off voltage
Vmoff
-
2
-
-
V
-40
-
+40
mV
[ BTL DRIVE PART ]
Output offset voltage
Voo
Vin=2.5V
Maximum output voltage
Vom
Vcc1=Vcc2=8V, 8ohm
4
5
-
V
Closed-loop voltage gain
Avf
Vin=0.1Vrms, f=1Khz
5
6.5
8
dB
Ripple rejection ratio
RR
Vin=0.1Vrms, f=120Hz
50
60
-
dB
Slew rate
SR
Vout=4Vp-p, square
-
1.5
-
V/us
[ REGULATOR PART ]
Output voltage
Vreg
IL=100mA
4.7
5
5.3
V
Load regulation 1
Vrl 1
IL=0~100mA
-40
-
10
mV
Load regulation 2
Vrl 2
IL=0~200mA
-70
-
10
mV
Line regulation
Vcc
Vcc=6.5V~12.5V, IL=100mA
-20
-
+60
mV
Input high level voltage
Vih
-
2
-
-
V
Input high level voltage
Vil
-
-
-
0.5
V
Output voltage
Vo
Vcc=8V, RL=45ohm,
Pin20=open
2.5
3.1
3.8
V
Output voltage regulation
Vo
Vcc=8V, RL=45ohm,
Pin20=3.5V ~ 4.5V
0.6
1
1.4
V
[ TRAY DRIVE PART ]
Output offset voltage 1
Voo1
Pin9,Pin14=5V
-40
-
+40
mV
Output offset voltage 2
Voo2
Pin9,Pin14=0V
-40
-
+40
mV
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY
- Reference & all mute
When you want to control output bias current of the IP4001, use pin #23 as follows
VCC2
All Output
Driver Bias
23
Q1
Pin#23
Mute
Above1.0V
off
Below 1.0V
on
As shown in figure 1,
Pin#23 is a negative input of the comparator,
and the other Input is the 1.0V reference.
If the voltage of the pin#23 falls below 1.0V,
TR Q1 will be turned on and the output bias current
will be shut down
30k
1V
Fig1. Reference & all mute function
- Mute
When you want to control output bias current of the IP4001, you can also use pin#7 as follows
VCC2
All Output
Driver Bias
7
Q3
20k
Q2
20k
Pin#7
Mute
High
off
Low
on
As shown in figure 2,
Pin#7 is a base input of the TR Q2.
If the voltage of the pin#7 is low or open,
TR Q2 will be turned off and TR Q3 will be turned on,
so the bias current will be shut down by TR Q3.
If the voltage of the pin#7 is high,
the bias circuit operates normally.
Fig2. Mute function
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
- Thermal shutdown
The IP4001 has a thermal protection against the abnormal operation, and the detailed operation
of the TSD circuit is as follows
VCC2
I
TSD
Temperature
mute
Above 175 O C
on
Falls below 150 OC
off
Hysteresis
25 O C
All Output
Driver Bias
Q4
I
As shown in figure 3,
TSD circuit controls the base of the TR Q4.
If the junction temperature rises above 175O C,
TR Q4 will be turned on, and the bias current
of the output drive circuit will be shut down
(because of the negative temperature characteristic
of the NPN transistor).
And then temperature falls below 150 O C, TR Q4 will
be turned off.
(hysteresis temperature is about to 25 O C)
HYS
Hysteresis
Fig3. Thermal shut down
- BTL drive part (Focus, Tracking, Spindle, Sled drive part)
BTL drive part is composed of V-I converter, level shifter and output power amp.
Ra
Level
Shift
2
11
18
26
10.6k Va
1
12
Ra
17
27
10.6k
23
3
10
19
25
4
-Va
Pamp1
-Iconv
Iconv
+Iconv
Pamp2
10k
24
Pref
Fig4. BTL drive part
- V-I converter converts voltage of the input pin into current,
Iconv =
Vin - Vref
10k
* Vin = input voltage of the input pin (pin3, 10, 19, 25)
August. 2002 (Rev.7)
*Vref = reference voltage (pin23)
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IP4001
5-CH MOTOR DRIVE IC
The level shifter changes the direction of the current(Iconv) as the same amount,
and then supply it to the power AMP.
The resistor Ra(10.6K) converts current into voltage with the DC offset of Pref.
Vin- Vref
+Pref
10k
Vin- Vref
- Va = -10.6K x
+Pr ef
10k
Va =10.6K x
when
Pref
=
VCC1
- Vbe
2
The power amp has unity gain.
So the total differential voltage gain of the IP4001 is as follows,
Vin- Vref
Vin- Vref
+Pref] - [(-)10.6k x
+Pref]}
10k
10k
Gain= 20log
Vin- Vref
10.6K
= 20log 2 x
10K
= 6.527dB
{[10.6k x
If you want to reduce the total gain of the BTL drive part, use additional series resistor into the
input pin(pin#3, 10,19,25)
You can also increase or decrease the voltage gain of the CH1, CH4 using adjustable pin
(pin#4, pin24) by inserting an external series resistor.
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
- Tray motor drive part
CH5 is a forward-reverse control DC motor driver and it is composed of logic control part,
level shifter, and output power amp.
VCC1
Level
Shift
50K
R1
50K
R2
Speed
Control
15
R4
20
R5
16
R3
9
Switching
Logic
14
Pref
Fig5. Tray drive part
The forward and reverse rotation is controlled by pin9(fwd), pin14(rev) and the amplitude of the
output voltage is controlled by pin20(CTL).
The output status due to the input conditions are as follows
INPUT
OUTPUT
FWD(PIN9)
REV(PIN14)
DO5+(PIN15)
DO5-(PIN16)
STATUS
High
High
Vp
Vp
Brake
High
Low
High
Low
Forward
Low
High
Low
High
Reverse
Low
Low
Vp
Vp
Brake
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
- Tray motor speed control
The amplitude of the output voltage is controlled by pin20(CTL).
VCC
VCC1
R
Speed
Control
50k
Level
Shift
20
ZD
50k
Fig6. Tray motor speed control
Normally, the differential output voltage is 3.1V when the pin20(CTL) is open.
If you want to control differential output voltage of the tray drive part, insert external resistor R and zener
diode ZD as shown in figure 6.
Zener diode ZD is only needed when you want to obtain a precision output voltage,
In other case you only insert an external resistor R.
- Regulator part
IP4001 has a temperature independent voltage source internally.
So in the figure 7, the reference voltage (2.5V) is generated by the internal circuit (bandgab reference).
VCC2
Because the power NPN TR Q5 is inserted
internally, there is no need to attach
an external active component.
2.5V
6
3.3K
3.3K
+
- 103
The output voltage of the regulator is
Calculated as follows
Vreo = (1+
3.3K
) x 2.5 = 5V
3.3K
And he capacitor 1uF is used as a ripple
& noise eliminator and should have a good
Temperature characteristics.
Internal circuit
External circuit
Fig7. Regulator
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
TEST CIRCUIT
SW3
3
2
1
3
8
1
SW12
1
2
1
SW11
SW10
2
2
3
3
DI1A
DI4
25
N/C
DI4A
24
6
REO
REF
23
MUTE
VCC2
22
VCC
5
5V
Reg out
8
8
26
DI1
2
4
SW13
3
1
27
2
VCC
28
SW2
3 2
PGND2 DO4(-) DO4(+)
8
1
SW1
2
1
8
1
DO1(-) DO1(+)
8
1
SW16
2
3
2.5V
103
7
1
SW18
(FIN)
(FIN)
8
SGND
VCC1
21
9
FWD
CTL
20
10
DI2
DI3
19
DO2(+) DO2(-) PGND1
DO3(+) DO3(-) DO5(-)
REV
DO5+
1
3
8
8
1
1
SW4
SW5
2
3
2
8
SW6
3
2
1
8
SW9
1
8
1
2
2
3
1
SW8
3
SW15
2
SW7
3
2
VCC
16
13
SW17
15
14
August. 2002 (Rev.7)
1
8
17
12
VCC
20
3
VCC
18
2
11
SW14
2
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IP4001
5-CH MOTOR DRIVE IC
TYPICAL APPLICATION CIRCUIT
27
TRACKING
ACTUATOR
DI1
4
DI1A
DI4
25
5
N/C
DI4A
24
6
REO
REF
23
7
MUTE
VCC2
26
3
VCC1
21
FWD
CTL
20
DI2
DI3
19
DO2(+) DO2(-) PGND1
DO3(+) DO3(-) DO5(-)
M
TRAY
MOTOR
15
REV
14
DO5(+)
SLED
MOTOR
16
13
Fwd
M
17
12
Servo signal processor
Mute
18
(FIN)
SGND
10
Focus Spindle Sled Tracking Ref
VCC
22
(FIN)
9
11
8
SPINDLE M
MOTOR
August. 2002 (Rev.7)
28
2
PGND2 DO4(-) DO4(+)
1
5V
Reg out
103
DO1(-) DO1(+)
FOCUS
ACTUATOR
Rev
CTL
Micro processor
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IP4001
5-CH MOTOR DRIVE IC
INTERNAL CIRCUIT
Pin no
Pin name
1,2,
11,12,
15,16,
17,18,
26,27
DO1DO1+
DO2+
DO2DO5+
DO5DO3DO3+
DO5+
DO5-
Internal circuit
18
2
11
1
12
26
15
17
27
16
PGND
3,
4,
10,
19,
23,
24,
25,
August. 2002 (Rev.7)
IN1
IN1A
IN2
IN3
REF
IN4A
IN4
13
13
28
28
23
3
10
19
25
4
24
10k
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IP4001
5-CH MOTOR DRIVE IC
INTERNAL CIRCUIT (Continued)
Pin no
Pin name
6
REO
Internal circuit
6
3.3k
3.3k
20k
7
MUTE
7
20k
30k
30k
20k
9,14
FWD
REV
20k
9
14
20k
20k
30k
August. 2002 (Rev.7)
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30k
- 13 -
IP4001
5-CH MOTOR DRIVE IC
INTERNAL CIRCUIT (Continued)
Pin no
Pin name
Internal circuit
50k
20
CTL
20
50k
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES
VCC vs ICC
ICC (mA)
16
VCC=variable
Vin=Vref=2.5V
RL=open
Mute=high
14
12
10
8
6
4
2
0
4
6
8
10
12
14
12
14
VCC (V)
VCC vs Imute
Imute (mA)
7
VCC=variable
Vin=Vref=2.5V
RL=open
Mute=low
6
5
4
3
2
1
0
4
August. 2002 (Rev.7)
6
8
VCC (V)
10
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
VCC vs Avf
Avf (dB)
8
7
6
5
4
VCC=Variable
Vref=2.5V
Vin=0.1V rms
RL=8.0 ohm
Mute=high
3
2
1
0
4
6
8
10
12
14
VCC (V)
VCC vs Vom
Vom (V)
10
VCC=variable
Vref=2.5V
Vin=VCC
RL=8.0 ohm
Mute=high
8
6
4
2
0
4
August. 2002 (Rev.7)
6
8
VCC (V)
10
12
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Vcesat_upper (V)
IL vs Vcesat_upper
3.0
VCC=8.0V
Vref=2.5V
Mute=high
Vin=VCC
IL=variable
2.5
2.0
1.5
1.0
0.5
0.0
0
200
400
600
800
1000
800
1000
IL (mA)
Vcesat_lower (V)
IL vs Vcesat_lower
3.0
VCC=8.0V
Vref=2.5V
Mute=high
Vin=VCC
IL=variable
2.5
2.0
1.5
1.0
0.5
0.0
0
August. 2002 (Rev.7)
200
400
IL (mA)
600
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
VCC vs Vreg
Vreg (V)
6
5
4
3
2
VCC=variable
IL=100 mA
1
0
4
6
8
VCC (V)
10
12
14
IL vs Vreg
Vreg (V)
VCC=8 V
IL=variable
5.4
5.2
5.0
4.8
4.6
0
50
100
150
200
250
300
IL (mA)
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
VCC vs Vo
VO (V)
6
VCC=Variable
Vref=2.5V
Mute=high
Fwd=high
Rev=low
CTL=open
5
4
3
2
1
4
6
8
10
12
14
VCC (V)
Vctl vs Vo
Vo (V)
6
VCC=8.0V
Vref=2.5V
Mute=high
Fwd=high
Rev=low
CTL=Variable
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
Vctl (V)
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Temperature vs Icc
Icc(mA)
12
10
8
6
VCC=8V
Vin=Vref=2.5V
RL=open
Mute=high
Temp=variable
4
2
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature vs Im
Im (mA)
4.0
3.5
3.0
2.5
VCC=8V
Vin=Vref=2.5V
RL=open
Mute=low
Temp=variable
2.0
1.5
1.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Temperature vs Avf
Avf (dB)
7
6
5
VCC=8V
Vref=2.5V
Vin=0.1Vrms
f=1kHz
RL=8 ohm
Mute=high
Temp=variable
4
3
2
1
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Temperature vs Vom
Vom
5
4
3
VCC=8V
Vref=2.5V
RL=8 ohm
Mute=high
Temp=variable
2
1
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Temperature vs Vo
Vo
3.5
3.0
2.5
2.0
VCC=8V
Vref=2.5V
RL=45 ohm
Mute=high
CTL=open
Temp=variable
1.5
1.0
0.5
0.0
-40
-20
0
20
40
60
80
100
Temperature (°C)
Vreg
Temperature vs Vreg
5
4
3
2
VCC=8V
IL=100mA
Temp=variable
1
0
-40
-20
0
20
40
60
80
100
Temperature (°C)
August. 2002 (Rev.7)
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IP4001
5-CH MOTOR DRIVE IC
PACKAGE DIMENSION
August. 2002 (Rev.7)
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