Interpion IP4001S 5-ch motor driveic Datasheet

IP4001S
5-CH MOTOR DRIVE IC
DESCRIPTIONS
The IP4001S 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 .Each channel
excluding the tray channel driver is a fixed gain driver
28SSOP H/S
ORDER INFORMATION
FEATURES
- Logic controlled 1-CH DC motor driver
- 4-CH BTL(Balanced Transformerless) drivers
- 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
Order Coder
Package
IP4001S
Tube
IP4001S-TF
IP4001S
Packing
T&R
28SSOPH-375B
IP4001SL
Tube, Lead Free
IP4001SL-TF
T&R, Lead Free
BLOCK DIAGRAM
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
PIN CONNECTIONS
PIN DESCRIPTIONS
NO
SYMBOL
I/O
DESCRIPTION
NO
SYMBOL
I/O
DESCRIPTION
1
DO1-
O
CH1 OUTPUT (-)
15
DO5+
O
CH5 OUTPUT (+)
2
DO1+
O
CH1 OUTPUT (+)
16
DO5-
O
CH5 OUTPUT (-)
3
IN1
I
CH1 INPUT
17
DO3-
O
CH3 OUTPUT (-)
4
N/C
-
NO CONNECTION
18
DO3+
O
CH3 OUTPUT (+)
5
N/C
-
NO CONNECTION
19
IN3
I
CH3 INPUT
6
REO
O
REGULATOR
OUTPUT
20
CTL
I
CH5 MOTOR SPEED
CONTROL INPUT
7
MUTE
I
MUTE
INPUT
21
VCC1
-
SUPPLY VOLTAGE 1
(CH2,CH3,CH5)
8
SGND
-
SIGNAL
GROUND
22
VCC2
-
SUPPLY VOLTAGE 2
(CH1,CH4,SIGNAL,REG)
9
FWD
I
CH5 INPUT 1
23
REF
I
REFERENCE INPUT
10
IN2
I
CH2 INPUT
24
N/C
-
NO CONNECTION
11
DO2+
O
CH2 OUTPUT (+)
25
IN4
I
CH4 INPUT
12
DO2-
O
CH2 OUTPUT (-)
26
DO4+
O
CH4 OUTPUT (+)
13
PGND1
-
27
DO4-
O
CH4 OUTPUT (-)
14
REV
I
28
PGND2
-
Nov. 2004 (Rev. 1)
POWER GROUND 1
CH5 INPUT 2
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POWER GROUND 2
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IP4001S
5-CH MOTOR DRIVE IC
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS
SYMBOL
VALUE
UNIT
Maximum supply voltage
Vccmax
18
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=25OC
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
* IF you don’t use regulator, then the recommended operating voltage is 4.5V ~ 13.2V
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS
(Ta = 25OC, VCC1=VCC2=8V, RL=8ohm, unless otherwise specified.)
CHARACTERISTICS
Quiescent circuit current
SYMBOL
Icc
CONDITIONS
MIN
TYP
MAX
UNIT
RL=open
-
5.5
-
mA
Pin7=GND
-
2.5
5
mA
Mute on current
Imute
Mute on voltage
Vmon
-
-
-
0.5
V
Mute off voltage
Vmoff
-
2
-
-
V
Vin=2.5V
-80
-
+80
mV
Vom1
Actuator Part
(CH1 and CH4)
3.5
4.5
-
V
Vom2
Spindle and Sled Part
(CH2 and CH3)
3.7
4.7
-
Closed-loop voltage gain
Avf
Vin=0.1Vrms, f=1Khz
5
6.5
8
dB
Ripple rejection ratio
RR
Vin=0.1Vrms, f=120Hz
40
60
-
dB
Slew rate
SR
Vout=4Vp-p, square
-
1.5
-
V/us
4.7
5
5.3
V
[ BTL DRIVE PART ]
Output offset voltage
Voo
Maximum output voltage
[ REGULATOR PART ]
Output voltage
Vreg
IL=100mA
Load regulation
Vrl
IL=0~100mA
-
20
-
mV
Line regulation
Vcc
VCC=8V~13.2V, IL=100mA
-
60
-
mV
Input high level voltage
Vih
-
2.5
-
-
V
Input low level voltage
Vil
-
-
-
0.5
V
Output voltage
Vo
VCC=8V, RL=45ohm,
Pin20=open
2.4
3.1
3.8
V
CTL-to-Output Transfer
Gain
Gv
Vcc=8V, RL=45ohm,
CTL=3.5V ~ 4.5V
0.6
1
1.4
V
Output offset voltage 1
Voo1
Pin9=Pin14=5V
-50
-
+50
mV
Output offset voltage 2
Voo2
Pin9=Pin14=0V
-50
-
+50
mV
[ TRAY DRIVE PART ]
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY
- All mute function using the REF pin
When the all mute function is required, you can use the reference pin as follows;
Fig. 1. All mute function using the reference pin
Pin 23
Mute
Above 1.0V
off
Below 1.0V
on
Muting all channel drivers can be obtained using the
REF (signal reference) pin. The simplified schematic
diagram for reference all mute function is shown in
Fig.1. When the input voltage of the signal reference
pin (pin23) is below 1.0V, the comparator turns Q1 on
and the bias currents of all output drivers are shut
down.
- All mute function using the Mute pin
All mute function can be also obtained using the MUTE pin as follows;
VCC2
7
Bias currents
for output
drivers
Pin 7
Mute
High
off
Low
on
Q3
30k
As we can see in Fig. 2, if the voltage of the pin7
becomes low (below 0.5V) or open, the bias currents
for all output drivers are shut down.
On the contrary, when the voltage of the pin7 becomes
high (above 2.0V), the drivers operate normally.
Q2
30k
Fig. 2. All mute function using the MUTE pin
- Thermal shutdown
The IP4001S has a thermal protection against the
abnormal operation. When the junction temperature
rises above 175OC, and channel drivers are muted.
This makes the junction temperature be continuously
decreased.
When the junction temperature falls below 150OC, all
channel operature again.
Nov. 2004 (Rev. 1)
Temperature
mute
Above 175 OC
on
Falls below 150 OC
off
Hysteresis
25 OC
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IP4001S
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
- Tray motor drive part
CH5 is a forward/reverse controlled DC motor driver for tray motor. The forward or reverse movement of the
tray motor is controlled by the pins 9 and 14. The output voltage status according to the control input conditions
are shown in the table. The magnitude of the differential output voltage is determined by the control current
generator. The control input voltage, VCTL at the pin20 approximately appears across R1 and hence the control
current, ∆i is VCTL/R1. This current enters into the control current distributor, which generates two output
currents, ∆i1 and ∆i2. The magnitude of ∆i1 and ∆i2 are equal each other and is the same as ∆i. When the pin9
is high and the pin14 is low, the direction of the current flow of ∆i1 and ∆i2 are the same direction as shown in Fig.
5. On the contrary, when the pin9 is low and the pin14 is high, the direction of ∆i1 and ∆i2 are reversed. If both
the pins 9 and 14 are high or low at the same time, ∆i1 and ∆i2 become to be zero and the tray motor is in the
brake mode. When the output is not in the brake mode, the magnitude of the differential output voltage and the
CTL-to-output transfer gain are given as in the following equations. The resistors, R1 and R2 are selected such
that Gv has a typical value of 1.0 V/V. Rb1 and Rb2 are used for setting the output voltage when the pin20 is
open circuited. The typical output voltage as the pin20 is opened is about 3.1V for the supply voltage of 8V.
R2
⋅CTL
R1
∂V o
R2
Gv =
= 2⋅
∂C T L
R1
Vo = 2 ⋅
Δi =
VCTL
R1
Vo5+ = Pref - VCTL ⋅
R2
R1
Vo5- = Pref + VCTL ⋅
R2
R1
Fig. 3. Tray drive part
INPUT
OUTPUT
FWD(PIN9)
REV(PIN14)
DO5+(PIN15)
DO5-(PIN16)
STATUS
High
High
Vpref
Vpref
Brake
High
Low
High
Low
Forward
Low
High
Low
High
Reverse
Low
Low
Vpref
Vpref
Brake
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
APPLICATION SUMMARY (Continued)
- Regulator part
Fig. 4. Regulator
As we can see in Fig. 4, the power transistor of the regulator is internally provided in IP4001S, thus the
external power transistor is not needed. Since the regulator output (typical 5V) is provided by the npn
transistor, the relatively small capacitor (e.g. 103) is sufficient for eliminating the output ripple or noise voltages.
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
TEST CIRCUIT
SW2
SW3
3 2
3
2
1
8
8
8
1
SW11
SW12
1
2
1
3
SW10
2 3
2
26
3
27
DO4(+)
2
DI1
SW13
4
1
3
VCC
28
8
1
PGND2 DO4(-)
DO1(+)
2
2
SW1
1
8
1
DO1(-)
8
VCC
DI4
25
N/C
N/C
24
6
REO
REF
23
VCC2
22
103
MUTE
7
VCC1
21
FWD
CTL
20
DI2
DI3
19
DO2(+) DO2(-) PGND1
DO3(+) DO3(-) DO5(-)
REV
DO5+
3 2
SW6
3
2
1
8
1
SW9
1
8
2
2
3
1
SW8
3
SW15
2
SW7
3
2
VCC
16
13
SW17
15
14
Nov. 2004 (Rev. 1)
8
17
12
VCC
1
18
2
8
1
SW5
20
3
VCC
SGND
1
SW4
2
(FIN)
(FIN)
8
11
8
1
SW18
10
3
3
2.5V
9
2
2
8
1
SW14
IP4001S
N/C
5
5V
Reg out
1
SW16
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IP4001S
5-CH MOTOR DRIVE IC
TYPICAL APPLICATION CIRCUIT
FOCUS
ACTUATOR
TRACKING
ACTUATOR
5V
Reg out
103
VCC
SPINDLE M
MOTOR
Focus Spindle Sled
Tracking Ref
Servo signal processor
Mute
Fwd
Rev
M
SLED
MOTOR
M
TRAY
MOTOR
CTL
Micro processor
* Because of the slight difference of the drive capability between CH1/CH4 and CH2/CH3, we
recommend that CH1/CH4 should be used as actuator driver and CH2/CH3 as motor driver.
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES
Icc(mA)
Icc vs. Vcc
16
14
Vcc=Sweep
Vref=2.5V
Vin=0.1Vrms
RL=8 ohm
Mute=High
12
10
8
6
4
2
0
4.0
6.0
8.0
Vcc(V)
10.0
12.0
14.0
12.0
14.0
Imute vs. Vcc
Imute(mA)
7
6
5
4
Vcc=Sweep
Vref=2.5V
Vin=5V
RL=8 ohm
Mute=High
3
2
1
0
4.0
6.0
8.0
10.0
Vcc(V)
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Avf vs. Vcc
Avf(dB)
10
8
6
Vcc=Sweep
Vref=2.5V
Vin=0.1Vrms
RL=8 ohm
Mute=High
4
2
0
4.0
6.0
8.0
10.0
12.0
14.0
12.0
14.0
Vcc(V)
Vom (V)
Vom vs. Vcc
8
7
6
5
Vcc=Sweep
Vref=2.5V
Vin=5V
RL=8 ohm
Mute=High
4
3
2
1
0
4.0
6.0
8.0
10.0
Vcc(V)
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Vreg vs. Vcc
Vreg(V)
6.5
6.0
IL=100mA
5.5
5.0
4.5
4.0
3.5
3.0
2.5
4.0
6.0
8.0
10.0
12.0
14.0
Vcc(V)
Vreg(V)
Vreg vs. Iload
5.20
5.15
Vcc=8V
5.10
5.05
5.00
4.95
4.90
4.85
4.80
0.0
50.0
100.0
150.0
200.0
250.0
300.0
Iload(mA)
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Vo (V)
V o vs. V cc(ch5)
8
Vcc = Sw ee p
Vre f= 2 .5 V
M u te = H ig h
R L= 4 5 o h m
F wd = H ig h
R ev= L ow
C TL=O pe n
7
6
5
4
3
2
1
0
4
6
8
10
12
14
Vc c(V)
V o (V)
V o vs. V ctl(ch5)
6
V cc=8 V
V re f=2 .5 V
M u te=H ig h
R L=4 5 oh m
F wd =H igh
R ev=L ow
C TL =S w ee p
5
4
3
2
1
0
1
2
3
4
5
6
7
8
V c tl(V )
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Icc vs. Temperature
Icc(m A)
12
Vcc=8V
Vin=Vref=2.5V
Mute=High
RL=Open
Temp=Sweep
10
8
6
4
2
0
-25
0
25
50
75
100
Temperature
Im ute(m A)
Im ute vs. T em perature
5
4
3
Vcc= 8V
Vin = Vref= 2.5V
M ute = Lo w
RL = O pe n
T em p = Swee p
2
1
0
-25
0
25
50
75
100
T em p erature
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Avf vs. Temperature
Avf(dB)
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
Vcc=8V
Vref=2.5V
Vin=0.1Vrms
F=1kHz
Mute=High
RL=8 ohm
Temp=Sweep
3.5
-25
0
25
50
75
100
Temperature
Im ute(m A)
Imute vs. Temperature
5.5
5.0
4.5
4.0
3.5
3.0
2.5
-25
Vcc= 8V
Vref=2.5V
Vin=5V
Mute=High
RL=8 ohm
Temp=Sweep
0
25
50
75
100
Tem perature
Nov. 2004 (Rev. 1)
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IP4001S
5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Vo (V)
Vo vs. Temperature (CH5)
5
4
3
Vcc= 8V
Vref= 2.5V
M ute =H ig h
R L=4 5 oh m
C TL= O pen
2
1
0
-25
0
25
50
75
100
Te m pe rature
Vreg vs. Temperature
Vreg(V)
5.15
5.10
Vcc=8V
IL=100mA
5.05
5.00
4.95
4.90
4.85
-25
0
25
50
75
100
Temperature
Nov. 2004 (Rev. 1)
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