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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
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
ORDER INFORMATION
Device Order Coder IP4001S IP4001S-TF IP4001S IP4001SL IP4001SL-TF 28SSOPH-375B Tube, Lead Free T&R, Lead Free Package Packing Tube T&R
BLOCK DIAGRAM
Nov. 2004 (Rev. 1)
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IP4001S 5-CH MOTOR DRIVE IC
PIN CONNECTIONS
PIN DESCRIPTIONS
NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SYMBOL DO1DO1+ IN1 N/C N/C REO MUTE SGND FWD IN2 DO2+ DO2PGND1 REV I/O O O I O I I I O O I DESCRIPTION CH1 OUTPUT (-) CH1 OUTPUT (+) CH1 INPUT NO CONNECTION NO CONNECTION REGULATOR OUTPUT MUTE INPUT SIGNAL GROUND CH5 INPUT 1 CH2 INPUT CH2 OUTPUT (+) CH2 OUTPUT (-) POWER GROUND 1 CH5 INPUT 2 NO 15 16 17 18 19 20 21 22 23 24 25 26 27 28 SYMBOL DO5+ DO5DO3DO3+ IN3 CTL VCC1 VCC2 REF N/C IN4 DO4+ DO4PGND2 I/O O O O O I I I I O O DESCRIPTION CH5 OUTPUT (+) CH5 OUTPUT (-) CH3 OUTPUT (-) CH3 OUTPUT (+) CH3 INPUT CH5 MOTOR SPEED CONTROL INPUT SUPPLY VOLTAGE 1 (CH2,CH3,CH5) SUPPLY VOLTAGE 2 (CH1,CH4,SIGNAL,REG) REFERENCE INPUT NO CONNECTION CH4 INPUT CH4 OUTPUT (+) CH4 OUTPUT (-) POWER GROUND 2
Nov. 2004 (Rev. 1)
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IP4001S 5-CH MOTOR DRIVE IC
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTICS Maximum supply voltage Power dissipation Operating temperature Storage temperature Maximum output current SYMBOL Vccmax Pd Topr Tstg Iomax VALUE 18 2.3 * -35 ~ +85 -55 ~ 150 1 UNIT V W
O
C C
O
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 CURVE
Power Dissipation (W) 3 2 1
SOA
0
25
50
75
100
125
150
175
Ambient Temperature (C)
RECOMMENDED OPERATING CONDITIONS
CHARACTERISTICS Supply voltage 1 Supply voltage 2 SYMBOL VCC1 VCC2 VALUE *6.5 ~ 13.2 *6.5 ~ 13.2 UNIT V 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 Mute on current Mute on voltage Mute off voltage [ BTL DRIVE PART ] Output offset voltage
SYMBOL Icc Imute Vmon Vmoff
CONDITIONS RL=open Pin7=GND -
MIN 2
TYP 5.5 2.5 -
MAX 5 0.5 -
UNIT mA mA V V
Voo Vom1
Vin=2.5V Actuator Part (CH1 and CH4) Spindle and Sled Part (CH2 and CH3) Vin=0.1Vrms, f=1Khz Vin=0.1Vrms, f=120Hz Vout=4Vp-p, square
-80 3.5 3.7 5 40 -
4.5 4.7 6.5 60 1.5
+80 8 -
mV V
Maximum output voltage Vom2 Closed-loop voltage gain Ripple rejection ratio Slew rate [ REGULATOR PART ] Output voltage Load regulation Line regulation [ TRAY DRIVE PART ] Input high level voltage Input low level voltage Output voltage CTL-to-Output Transfer Gain Output offset voltage 1 Output offset voltage 2 Vih Vil Vo Gv Voo1 Voo2 Vreg Vrl Vcc Avf RR SR
dB dB V/us
IL=100mA IL=0~100mA VCC=8V~13.2V, IL=100mA
4.7 -
5 20 60
5.3 -
V mV mV
VCC=8V, RL=45ohm, Pin20=open Vcc=8V, RL=45ohm, CTL=3.5V ~ 4.5V Pin9=Pin14=5V Pin9=Pin14=0V
2.5 2.4 0.6 -50 -50
3.1 1 -
0.5 3.8 1.4 +50 +50
V V V V mV mV
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; Pin 23 Above 1.0V Below 1.0V Mute off on
Fig. 1. All mute function using the reference pin
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
Pin 7
7
Mute off on
Bias currents for output drivers 30k Q2 30k Q3
High Low
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.
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.
Temperature Above 175 OC Falls below 150 OC Hysteresis
mute on off 25 OC
Nov. 2004 (Rev. 1)
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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
i =
VCTL R1
Vo5+ = Pref - VCTL
R2 R1
Vo5- = Pref + VCTL
R2 R1
Fig. 3. Tray drive part INPUT FWD(PIN9) High High Low Low REV(PIN14) High Low High Low DO5+(PIN15) Vpref High Low Vpref OUTPUT DO5-(PIN16) Vpref Low High Vpref STATUS Brake Forward Reverse 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
PGND2 DO4(-)
DO1(-)
28
8
1 1
8 8 SW3
3 2 1
1
SW1
2
SW2
32
DO1(+)
27
8 8
1 2 1
8
1
2
VCC DI1
1
SW12
3
SW11
23
SW10
2
DO4(+)
26
3
SW13
2 3
VCC
1
N/C N/C
25
DI4
4 5
SW16
2 3
N/C
24
5V Reg out 6 103
REO
REF
23
2.5V
22
IP4001S
VCC2
MUTE (FIN) SGND FWD DI2
7 8 9 10
1
SW18
2 3
20
(FIN) VCC1 CTL DI3 21 20 19
VCC
1
DO3(+) DO3(-) DO5(-)
SW14
2 3
1
DO2(+) DO2(-) PGND1
8
1 1
8 8 SW6
3 2 1
8 8
1 1
8
1
SW15
2 3
11
18
SW4
2
SW5
32
SW9
2 3
SW8
2 3
SW7
2
12
17
VCC 13 14
VCC 16
SW17
REV
Nov. 2004 (Rev. 1)
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DO5+
15
45
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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
M
SLED MOTOR
M
TRAY MOTOR
Focus Spindle Sled
Tracking Ref
Mute
Fwd
Rev
CTL
Servo signal processor
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 12 10 8 6 4 2 0 4.0 6.0 8.0 10.0 12.0 14.0
Vcc=Sweep Vref=2.5V Vin=0.1Vrms RL=8 ohm Mute=High
Vcc(V)
Imute(mA)
Imute vs. Vcc
7 6 5 4 3 2 1 0 4.0 6.0 8.0 10.0
Vcc(V) Vcc=Sweep Vref=2.5V Vin=5V RL=8 ohm Mute=High
12.0
14.0
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IP4001S 5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Avf(dB)
Avf vs. Vcc
10 8 6 4 2 0 4.0
Vcc=Sweep Vref=2.5V Vin=0.1Vrms RL=8 ohm Mute=High
6.0
8.0
Vcc(V)
10.0
12.0
14.0
Vom (V)
Vom vs. Vcc
8 7 6 5 4 3 2 1 0 4.0 6.0 8.0
Vcc(V) Vcc=Sweep Vref=2.5V Vin=5V RL=8 ohm Mute=High
10.0
12.0
14.0
Nov. 2004 (Rev. 1)
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IP4001S 5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Vreg(V)
Vreg vs. Vcc
6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 4.0 6.0 8.0 10.0
Vcc(V) IL=100mA
12.0
14.0
Vreg(V)
Vreg vs. Iload
5.20 5.15 5.10 5.05 5.00 4.95 4.90 4.85 4.80 0.0 50.0 100.0 150.0
Iload(mA) Vcc=8V
200.0
250.0
300.0
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 7 6 5 4 3 2 1 0 4 6 8
Vc c(V) 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
10
12
14
V o (V)
V o vs. V ctl(ch5)
6 5 4 3 2 1 0
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
1
2
3
4
V c tl(V )
5
6
7
8
Nov. 2004 (Rev. 1)
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IP4001S 5-CH MOTOR DRIVE IC
ELECTRICAL CHARACTERISTICS CURVES (Continued)
Icc(m A)
Icc vs. Temperature
12 10 8 6 4 2 0 -25
Vcc=8V Vin=Vref=2.5V Mute=High RL=Open Temp=Sweep
0
25
50
75
100
Temperature
Im ute(m A)
Im ute vs. T em perature
5
Vcc= 8V Vin = Vref= 2.5V M ute = Lo w RL = O pe n T em p = Swee p
4
3
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(dB)
Avf vs. Temperature
7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 -25
Vcc=8V Vref=2.5V Vin=0.1Vrms F=1kHz Mute=High RL=8 ohm Temp=Sweep
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(V)
5.15
Vreg vs. Temperature
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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