IP4001 INTERPION | Alldatasheet

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Technical content

  • 1 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC 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. - 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 -35OC ~ +85 OC IP4001TF 28SSOPH-375 -35OC ~ +85 OC DESCRIPTIONS BLOCK DIAGRAM ORDER INFORMATION

FEATURES

D D Level Shift 10K 10K D D Level Shift IN2 10K 10K D D Level Shift D D SWITCH Level Shift MSC 10K 10K D D Level Shift BIAS VCC2 REGULATOR 3.3K 3.3K 2.5V 20K 20K PWR TR DO4+ (FIN) (FIN) MUTE IN1 28SSOP H/S

  • 2 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC DO1- DO1+ IN1 IN1A N/C REO MUTE SGND FWD IN2 DO2+ DO2- PGND1 REV DO5+ DO5- DO3- DO3+ IN3 CTL VCC1 VCC2 REF IN4A IN4 DO4- PGND2 DO4+ (FIN) (FIN) PIN DESCRIPTIONS NO SYMBOL I/O

DESCRIPTION

O CH1 OUTPUT (-) DO1+ O CH1 OUTPUT (+) IN1 I CH1 INPUT 1 IN1A I CH1 INPUT 2 N / C NO-CONNECTION REO O REGULATOR OUTPUT MUTE I MUTE INPUT SGND SIGNAL GROUND FWD I CH5 INPUT 1 IN2 I CH2 INPUT DO2+ O CH2 OUTPUT (+) DO2- O CH2 OUTPUT (-) PGND1 POWER GROUND 1 REV I CH5 INPUT 2 NO SYMBOL I/O O CH5 OUTPUT (+) DO5- O CH5 OUTPUT (-) DO3- O CH3 OUTPUT (-) DO3+ O CH3 OUTPUT (+) IN3 I CH3 INPUT CTL I CH5 MOTOR SPEED CONTROL VCC1 I SUPPLY VOLTAGE 1 (CH2,CH3,CH5) VCC2 I SUPPLY VOLTAGE 2 (CH1,CH4,SIGNAL,REG) REF I CH BIAS INPUT IN4A I CH4 INPUT 1 IN4 I CH4 INPUT 2 DO4+ O CH4 OUTPUT (+) DO4- O CH4 OUTPUT (-) PGND2 POWER GROUND 2 PIN CONNECTIONS IP4001

  • 3 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC CHARACTERISTICS SYMBOL VALUE UNIT Maximum supply voltage Vccmax V Power dissipation Pd 2.3 * W Operating temperature Topr -35 ~ +85 OC Storage temperature Tstg -55 ~ 150 OC Maximum output current Iomax 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) Ambient Temperature (°C) 25 50 75 100 125 150 175 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 SOA ABSOLUTE MAXIMUM RATINGS
  • 4 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC

ELECTRICAL CHARACTERISTICS

Pin7=GND 2.5 mA Mute on voltage Vmon 0.5 V Mute off voltage Vmoff V [ BTL DRIVE PART ] Output offset voltage Voo Vin=2.5V -40 +40 mV Maximum output voltage Vom Vcc1=Vcc2=8V, 8ohm V Closed-loop voltage gain Avf Vin=0.1Vrms, f=1Khz 6.5 dB Ripple rejection ratio RR Vin=0.1Vrms, f=120Hz dB Slew rate SR Vout=4Vp-p, square 1.5 V/us [ REGULATOR PART ] Output voltage Vreg IL=100mA 4.7 5.3 V Load regulation 1 Vrl 1 IL=0~100mA -40 mV Line regulation Vcc Vcc=6.5V~12.5V, IL=100mA -20 +60 mV [ TRAY DRIVE PART ] Input high level voltage Vih 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 1.4 V Output offset voltage 1 Voo1 Pin9,Pin14=5V -40 +40 mV Output offset voltage 2 Voo2 Pin9,Pin14=0V -40 +40 mV Load regulation 2 Vrl 2 IL=0~200mA -70 mV (Ta = 25OC, VCC1=VCC2=8V, RL=8ohm, unless otherwise specified.)

  • 5 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM 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 Pin#23 Mute Above1.0V off Below 1.0V on All Output Driver Bias VCC2 30k - Mute When you want to control output bias current of the IP4001, you can also use pin#7 as follows All Output Driver Bias VCC2 20k 20k Pin#7 Mute High off Low on Fig1. Reference & all mute function Fig2. Mute function 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 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.
  • 6 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM 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 Temperature mute Above 175 OC on Falls below 150 OC off - BTL drive part (Focus, Tracking, Spindle, Sled drive part) BTL drive part is composed of V-I converter, level shifter and output power amp. All Output Driver Bias VCC2 I TSD Hysteresis I HYS 10.6k Pref 10k Level Shift 10.6k As shown in figure 3, TSD circuit controls the base of the TR Q4. If the junction temperature rises above 175OC, 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 OC, TR Q4 will be turned off. (hysteresis temperature is about to 25 OC) Fig3. Thermal shut down Hysteresis 25 OC Fig4. BTL drive part - V-I converter converts voltage of the input pin into current, * Vin = input voltage of the input pin (pin3, 10, 19, 25) *Vref = reference voltage (pin23) 10k Vref Vin Iconv Iconv +Iconv -Iconv Ra Ra Pamp1 Pamp2 -Va Va
  • 7 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM 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. The power amp has unity gain. So the total differential voltage gain of the IP4001 is as follows, 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. when ef Pr 10k Vref Vin 10.6K x Va ef Pr 10k Vref Vin -10.6K x Va Vbe VCC1 Pref Vref Vin ef Pr 10k Vref Vin x [(-)10.6k ef Pr 10k Vref Vin x {[10.6k 20log Gain 10K 10.6K x 20log 6.527dB
  • 8 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM 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. Pref Switching Logic Level Shift Speed Control VCC1 50K 50K 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 Fig5. Tray drive part INPUT 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 OUTPUT
  • 9 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC APPLICATION SUMMARY (Continued) - Tray motor speed control The amplitude of the output voltage is controlled by pin20(CTL). Level Shift VCC1 Speed Control VCC R 50k 50k ZD 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. Fig6. Tray motor speed control - 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). Fig7. Regulator Because the power NPN TR Q5 is inserted internally, there is no need to attach an external active component. The output voltage of the regulator is Calculated as follows 2.5 x 3.3K 3.3K Vreo And he capacitor 1uF is used as a ripple & noise eliminator and should have a good Temperature characteristics. 2.5V VCC2 3.3K 103 Internal circuit External circuit 3.3K
  • 10 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC TEST CIRCUIT Reg out 103 DO1(-) DO1(+) DI1 DI1A N/C REO MUTE SGND FWD DI2 DO2(+) DO2(-) PGND1 REV DO5+ DO5(-) DO3(-) DO3(+) DI3 CTL VCC1 VCC2 REF DI4A DI4 DO4(-) PGND2 DO4(+) (FIN) (FIN) 2.5V SW1 SW2 SW3 VCC VCC SW4 SW5 SW6 SW7 SW8 SW9 VCC SW10 SW11 SW12 VCC SW13 SW14 SW15 SW16 SW17 SW18 VCC
  • 11 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC TYPICAL APPLICATION CIRCUIT FOCUS ACTUATOR Reg out 103 DO1(-) DO1(+) DI1 DI1A N/C REO MUTE SGND FWD DI2 DO2(+) DO2(-) PGND1 REV DO5(+) DO5(-) DO3(-) DO3(+) DI3 CTL VCC1 VCC2 REF DI4A DI4 DO4(-) PGND2 DO4(+) (FIN) (FIN) M M M TRACKING ACTUATOR SPINDLE MOTOR SLED MOTOR TRAY MOTOR Focus Spindle Tracking Sled Servo signal processor Fwd Rev CTL Micro processor VCC Ref Mute
  • 12 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC INTERNAL CIRCUIT Pin no Pin name Internal circuit 1,2, 11,12, 15,16, 17,18, 26,27 DO1- DO1+ DO2+ DO2- DO5+ DO5- DO3- DO3+ DO5+ DO5- 10, 19, 23, 24, 25, IN1 IN1A IN2 IN3 REF IN4A IN4 10k PGND
  • 13 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC INTERNAL CIRCUIT (Continued) Pin no Pin name Internal circuit REO MUTE 9,14 FWD REV 20k 20k 3.3k 3.3k 30k 30k 20k 20k 20k 20k 30k 30k
  • 14 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC INTERNAL CIRCUIT (Continued) Pin no Pin name Internal circuit CTL 50k 50k
  • 15 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES VCC=variable Vin=Vref=2.5V RL=open Mute=high VCC vs ICC ICC (mA) VCC (V) VCC=variable Vin=Vref=2.5V RL=open Mute=low VCC vs Imute Imute (mA) VCC (V)
  • 16 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) VCC=Variable Vref=2.5V Vin=0.1V rms RL=8.0 ohm Mute=high VCC vs Avf Avf (dB) VCC (V) VCC=variable Vref=2.5V Vin=VCC RL=8.0 ohm Mute=high VCC vs Vom Vom (V) VCC (V)
  • 17 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) 200 400 600 800 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 VCC=8.0V Vref=2.5V Mute=high Vin=VCC IL=variable IL vs Vcesat_upper Vcesat_upper (V) IL (mA) 200 400 600 800 1000 0.0 0.5 1.0 1.5 2.0 2.5 3.0 VCC=8.0V Vref=2.5V Mute=high Vin=VCC IL=variable IL vs Vcesat_lower Vcesat_lower (V) IL (mA)
  • 18 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) VCC=variable IL=100 mA VCC vs Vreg Vreg (V) VCC (V) 100 150 200 250 300 4.6 4.8 5.0 5.2 5.4 VCC=8 V IL=variable IL vs Vreg Vreg (V) IL (mA)
  • 19 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) VCC=Variable Vref=2.5V Mute=high Fwd=high Rev=low CTL=open VCC vs Vo VO (V) VCC (V) VCC=8.0V Vref=2.5V Mute=high Fwd=high Rev=low CTL=Variable Vctl vs Vo Vo (V) Vctl (V)
  • 20 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) (°C) -40 -20 100 VCC=8V Vin=Vref=2.5V RL=open Mute=high Temp=variable Temperature vs Icc Icc(mA) Temperature -40 -20 100 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VCC=8V Vin=Vref=2.5V RL=open Mute=low Temp=variable Temperature vs Im Im (mA) Temperature (°C)
  • 21 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) -40 -20 100 VCC=8V Vref=2.5V Vin=0.1Vrms f=1kHz RL=8 ohm Mute=high Temp=variable Avf (dB) Temperature vs Avf Temperature -40 -20 100 Temperature Vom Temperature vs Vom VCC=8V Vref=2.5V RL=8 ohm Mute=high Temp=variable (°C) (°C)
  • 22 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC ELECTRICAL CHARACTERISTICS CURVES (Continued) -40 -20 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VCC=8V Vref=2.5V RL=45 ohm Mute=high CTL=open Temp=variable Vo Temperature vs Vo Temperature -40 -20 100 Temperature Vreg VCC=8V IL=100mA Temp=variable Temperature vs Vreg (°C) (°C)
  • 23 - August. 2002 (Rev.7) WWW.INTERPIONSEMI.COM IP4001 5-CH MOTOR DRIVE IC PACKAGE DIMENSION