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) www.interpionsemi.com -1- 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 www.interpionsemi.com POWER GROUND 2 -2- 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) www.interpionsemi.com -3- 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) www.interpionsemi.com -4- 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 www.interpionsemi.com -5- 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) www.interpionsemi.com -6- 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) www.interpionsemi.com -7- 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 www.interpionsemi.com 45 -8- 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) www.interpionsemi.com -9- 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) www.interpionsemi.com - 10 - 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) www.interpionsemi.com - 11 - 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) www.interpionsemi.com - 12 - 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) www.interpionsemi.com - 13 - 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) www.interpionsemi.com - 14 - 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) www.interpionsemi.com - 15 - 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) www.interpionsemi.com - 16 -