MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER <FEATURES> PIN CONFIGURATION This IC is 1 chip driver IC for spindle motor and 4 channel actuators. All of the motor and actuator of optical disk drive system (CD-ROM etc.) can be drived by only this IC. This IC has a direct PWM control system for Spindle and Slide channels drive due to reducing IC power dissipation. This IC has three voltage supply terminals (for Spindle, Slide/Loading and Focus/Tracking) , and these voltage supply can be set separately. Further more this IC has FG amplifier, thermal shut down circuit, standby circuit, channel select function, reverse rotation detect circuit. LOIN+ MU1 MU2 VM23 LO+ LOGND RSL <APPLICATION> CD-ROM, DVD, DVD-ROM, DVD-RAM , Optical disc related system,etc (Top View) 42 41 1 2 3 4 40 39 5 38 6 37 7 36 35 8 SL+ SLGND W V 9 10 34 11 32 31 U RSP HWHW+ HVHV+ 14 15 29 28 16 17 27 18 25 19 24 HUHU+ 20 23 21 22 33 12 13 30 26 LOINSLIN OSC 5VCC VM4 TOTO+ FO+ FOGND PREG REGO SGND GND FOIN TOIN SPIN REF FG HB VM1 Package outline : 42 PIN POWER SSOP (42P9R-B) <BLOCK DIAGRAM> s FG FG s s s Reverse Detect HU+ HUHV+ Spindle HV- Loading Slide HW+ HWHB 5VCC 5Vpower supply Hall Bias CTL amp. SPIN Current comp. Direction comp. CTL amp. Current comp. LOIN+ LOIN- Direction comp. REF TSD SLIN MU1 MU2 BIAS FOIN TOIN Regulator Frequency generator OSC 5V PREG Focus Tracking 3.3V Regulator REGB (1 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER <PIN FUNCTION> TERMINAL SYMBOL TERMINAL TERMINAL FUNCTION SYMBOL TERMINAL FUNCTION 1 LOIN+ Loading control input(+) 42 LOIN- Loading control input(-) 2 MU1 mute 1 41 SLIN Slide control voltage input 3 MU2 40 OSC PWM carrier oscilation set 4 VM23 mute 2 Motor Power Suppry 3 (for Slide/Loading) 39 5VCC 5V Power Suppry 5 LO+ Loading non-inverted output 38 VM4 6 LO- Loading inverted output 37 TO- Tracking inverted output 7 GND GND 36 TO+ Tracking non-inverted output 8 RSL Slide current sense 35 FO+ Focus non-inverted output 9 SL+ Slide non-inverted output 34 FO- Focus inverted output 10 SL- Slide inverted output 33 GND GND 11 GND GND 32 PREG Motor Power Suppry 4 (for FS and TS) Regulator output 12 W Motor drive output W 31 REGO 13 V Motor drive output V 30 SGND 14 U Motor drive output U 29 GND GND 15 RSP Spindle current sensie 28 FOIN Focus control voltage input 16 HW- HW- sensor amp. input 27 TOIN Tracking control voltage input 17 HW+ HW+ sensor amp. input 26 SPIN Spindle control voltage input 18 HV- HV- sensor amp. input 25 REF Reference voltage input 19 HV+ HV+ sensor amp. input 24 FG Frequency generator output 20 HU- HU- sensor amp. input 23 HB Bias for Hall Sensor 21 HU+ HU+ sensor amp. input 22 VM1 Motor Power Suppry 1 (for Spindle) (2 / 16) Regulator reference voltage output Regulator GND REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER <ABSOLUTE MAXIMUM RATING> (Ta=25ºC ) SYMBOL PARAMETER 5VCC 5V power supply VM1 VM23 VM4 RATING Unit 7 V Motor power supply 1 Spindle power supply 15 V Motor power supply 23 Slide and Loading power supply 15 V Motor power supply 4 Focus and Tracking power supply 15 V 1.0 A 1.2 A 0 to 5VCC V 2.6 W 20.8 mW / ºC IoA Motor Output Current A IoB Motor Output Current B Vin CONDITIONS Maximum input voltage of terminals Focus,Tracking and Loading output current *note 1 Spindle and Slide output current *note 1 MU1,MU2,Hw-,Hw+,Hv-,Hv+,Hu-,Hu+,REF, SPIN,TOIN,FOIN,OSC,SLIN,LOIN-,LOIN+ Pt Power dissipation Free Air and on the grass epoxy board Kθ Thermal derating Free Air and on the grass epoxy board Tj Junction temperature 150 ºC Operating temperature -20 to +75 ºC Storage temperature -40 to +150 ºC Topr Tstg *note1 ; The ICs must be operated within the Pt (power dissipation) or the area of safety operation The spindle and slide output terminal is needed external shottky diode between each output and GND when it is used above 0.6A. Discription(IoA) is case of with external shottky diode. <RECOMMENDED OPERATING CONDITIONS> (Ta=25ºC) LIMITS SYMBOL VM1 VM23 VM4 PARAMETER VM1 power supply(for Spindle) VM23 power supply(for Slide and Loading) VM4 power supply(for Focus and Tracking) Unit minimum typical maximum 6 12 13.2 V 6 12 13.2 V 4.5 5 13.2 V IoA Spindle and Slide Output Current *note2 0.5 1.0 A IoB Focus, Tracking and Loading Output Current 0.5 0.8 A Fosc Motor power supply 2 120 KHz 30 *note2 The spindle and slide output terminal is needed external shottky diode between each output and GND when it is used above 0.6A. Discription(IoA) is case of with external shottky diode. ( 3 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER [THERMAL DERATING] 6.0 (W) 5.0 This IC's package is POWER-SSOP, so improving the board on which the IC is mounted enables a large power dissipation without a heat sink. For example, using an 1 layer glass epoxy resin board, the IC's power dissipation is 2.6W at least. And it comes to 3.6W by using an improved 2 layer board. The information of the N, P type board is shown in attached. using N-type board 4.0 using P-type board 3.0 2.0 1.0 0 25 50 75 Ambient Temperature 100 125 150 Ta (ºC) [ELECTRICAL CHARACTERISTICS] Common SYMBOL (Ta=25ºC, 5VCC=VM4=5V,VM1=VM23=12V unless otherwise noted.) PARAMETER LIMITS CONDITIONS MIN Icc1 Icc2 Fosc Vreg VinREF Supply current Sleep current PWM carrier frequency 3.3V regulator output voltage 5VCC,VM1, VM23, VM4 current under Sleep REF input voltage range VMULO MUTE terminal low voltage VMUHI MUTE terminal high voltage Mute terminal input current MAX 60 78 mA 0 30 µA (MU1 = MU2 =0V). 110 OSC : with 180pF KHz 3.4 V 1.0 3.3 V -10 +10 µA 0.8 V 3.2 3.3 with -300mA load (Reference to application circuit) REF input voltage range IinREF IMU 5VCC,VM1, VM23, VM4 current Unit TYP VREF=1.65V MU1,MU2 3.0 MU1,MU2 MU1,MU2 at 5V input voltage ( 4 / 16) V 500 µA REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER [ELECTRICAL CHARACTERISTICS] Spindle (Ta=25ºC, 5VCC=VM4=5V,VM1=VM23=12V unless otherwise noted.) LIMITS SYMBOL Vdyc1 Dynamic range of output Vin1 Gvo1 Control voltage dead zone 1 TYP 10.3 10.8 [REVERSE] -80 -40 0 mV [FORWARD] 0 +40 +80 mV 5 V Control gain 1 Control limit 1F Vlim1R Control limit 1R Gio1=Gvo1/ Rs [A/V] 1.15 V/V Ilim1F=Vlim1F/ Rs [A] [FORWARD] 0.4 0.5 0.6 V Ilim1R=Vlim1R/ Rs [A] [REVERSE] 0.27 0.34 0.41 V 3.7 V Hu+,Hu-,Hv+,Hv-,Hw+ ,Hw- 60 HB output voltage at Load current (IHB)=10mA 0.6 HB terminal sink current MU1=MU2=0V or MU1=MU2=5V or MU1=5V/MU2=0V Hall sensor amp.input signal level IHB 1.0 1.3 VHmin VHB 0.85 Hu+,Hu-,Hv+,Hv-,Hw+ ,Hw- Hall sensor amp. common mode input range V 0 Control voltage input range 1 SPIN Vlim1F VHcom REF<SPIN MAX Unit MIN Io=0.5 [A] SPIN<REF Vdead1Vdead1+ CONDITIONS PARAMETER Slide mVp-p 0.85 1.2 V 30 mA (Ta=25ºC, 5VCC=VM4=5V,VM1=VM23=12V unless otherwise noted.) LIMITS SYMBOL Vdyc2 Dynamic range of output Unit CONDITIONS PARAMETER Io=0.5 [A] MIN TYP at VM23=5[V] 3.3 3.8 at VM23=12[V] 10.3 10.8 MAX V Vdead2- SLIN < REF -60 -30 0 mV Vdead2+ Control voltage dead zone 2 REF < SLIN 0 +30 +60 mV SLIN 0 5 V Vin2 Gvo2 Vlim2 Tdon Tdoff Tdsw Ileak Control voltage input range 2 Gio2=Gvo2/ Rs [A/V] 0.85 1.0 1.15 V/V Ilim2=Vlim2/ Rs [A] 0.43 0.5 0.58 V Output turn-on delay 1.0 2.0 µsec Output turn-off delay 2.0 3.5 µsec Output switching delay 3.0 5.0 µsec 100 µA Control gain 2 Control limit 2 Output leak current MU1=MU2=5v,MU1=MU2=0v ( 5 / 16) -100 REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER [ELECTRICAL CHARACTERISTICS] Loading (Ta=25ºC, 5VCC=VM4=5V,VM1=VM23=12V unless otherwise noted.) LIMITS SYMBOL Vdyc3 Vin3 Gvo3 Voff1 PARAMETER Dynamic range of output Control voltage input range3 Control gain 3 CONDITIONS Io=0.5[A] MIN TYP VM23=5[V] 3.3 3.8 VM23=12[V] 10.3 10.8 (LO+) – (LO-) (LOIN+) – (LOIN-) (LO+) – (LO-) at LOIN+=LOIN-=5V Output offset voltage Focus / Tracking V 5 0 LOIN+,LOIN- Unit MAX 16.6 18 -60 0 V 19.3 dB +60 mV (Ta=25ºC, 5VCC=VM4=5V,VM1=VM23=12V unless otherwise noted.) LIMITS SYMBOL Vdyc4 Vin4 Gvo4 Voff2 PARAMETER Dynamic range of output Control voltage input range4 CONDITIONS Io=0.5[A] VM1=12[V] MIN TYP VM4=5[V] 3.8 4.2 VM4=12[V] 7.1 7.6 Control gain 4 (FO+) –(FO-) FOIN–REF (TO+) –(TO-) TOIN–REF Output offset voltage (FO+) –(FO-) at REF=FOIN=1.65V (TO+) –(TO-) at REF=TOIN=1.65V Unit V 0 FOIN,TOIN MAX 5 V 12.5 14 15.2 dB -35 0 +35 mV [THERMAL CHARACTERISTICS] FUNCTION START TEMPERATURE OF IC SYMBOL Unit MIN TSD FUNCTION STOP TEMPERATURE OF IC PARAMETER Thermal Shut Down TYP MAX 160 ( 6 / MIN TYP 130 16) MAX ºC REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER Channel select function Logic control MU1 MU2 Loading Slide H H On On L H On Off H L On On L L Off Off SELECT4 SELECT3 SELECT2 SELECT1 Drive channel Focus Tracking Spindle On On On Off Off Off Off Off Off Off Off Off Regulatoramp On Off On Off This IC has two MUTE terminal (MU1 and MU2). It is possible to control ON / OFF of each channel by external logic inputs. It has four kinds of function for channel select.In case of SELECT1, the bias of all circuit becomes OFF. Therefore, this mode is available in order to reduce the power dissipation when the waiting mode. In case of SELECT2,the bias of the loading, the slide and the regulator amplifier circuit becomes ON. In case of SELECT3,it is possible to make OFF the loading channel only. In case of SELECT4,the bias of all channel becomes ON. Regard with making OFF the loading channel in case of SELECT2,SELECT3 and SELECT4,please refer to [Loading channel]. Loading channel The loading channel is the circuit of BTL voltage drive. This circuit has the referential input. Output swing is determined with ∆Vin x 8. Also,it is possible for this channel to use for the slide motor , the focus coil and the tracking coil. The input terminal is high impedance. It is possible to do variable a gain by external resistor. The output becomes high impedance in case of both input voltage becomes under 0.7 volts. It is possible for the input terminal to operate from 0 volts.The following table and diagram show an application in case of two MCU port and one MCU port for the loading motor.In case of one MCU port, if use three state port, it is possible for this channel to have the stop function. VM23 LO+ Forward LOIN+ + LOADING Channel Vo M LO- Reverse - LOIN- ( 7 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER LO- LO+ Output voltage [V] + Coil - VM23 2 [LOIN+]– [LOIN-] (V) Vo Coil Gvo = 8 [v/v] Vo=[LO+]–[LO-] =8 X ([LOIN+]–[LOIN-]) LO- LO+ application.1 (MCU:Two port H/L control) Logic control P1 P2 5V 5V 5V 0 5V 0 0 0 Situation of loading channel Output voltage swing Short brake --> Stop Reverse rotation Forward rotation Off [ High impedance output] Vo= 0 [V] Vo= - 8x5xR1/(R1+2xR2) Vo= 8x5xR1/(R1+2xR2) Off application.2 (MCU:One port H/Z/L control) Logic control Situation of loading channel P1 5v Forward rotation Z (Hi impedance) Short brake --> Stop 0 Reverse rotation Output voltage swing Vo= 2.5[V] x8x R2 (R1/2)+R2+R3 Vo= 0 [V] Vo= -2.5[V] x8x R2 (R1/2)+R2+R3 P1 5v P1 R2 P2 P1 0v R1 5v 5V 5v LOIN+ Z R1 LOIN+ 0v P1 0v R3 LOINR2 application.1 ( Two port H/L control) P2 R2 R1 LOIN- application.2 (One port H/Z/L control) ( 8 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER SPINDLE channel Forward Torque The relationship between the differential voltage between SPIN and REF and the torque is shown in right Figure. The voltage gain[Gvo] is 1.0 [V/V]. The current gain[Gio] is 2.0A/V (at sensing resistor : 0.5 ohm,and R1=∞,R2=0ohm) in forward torque directions, and the dead zone is from 0mV to 80mV (at R1=∞,R2=0ohm) . The coil current gain under the reverse torque is the same with in forward torque directions.And the limitation function gets on when the differential voltage of VM1(12V) to RSP is 0.5V at forward and 0.3V at reverse. Therefore current-gain-control and current-limit of this IC is determined with sensing resister value, and more detail control can be determined with setting a gain-resister outer this IC as below. current limit Ilim1F Dead zone Gio CTL -REF (V) Gio Dead zone Ilim1R current limit Reverse Torque The example of current-gain and current-limit of SPINDLE. Gio* [A/V] Rs [Ω] Ilim1F [A] Ilim1R [A] 0.50 1.00 0.68 2.00 1.00 0.66 0.75 0.66 0.45 1.33 0.66 0.44 1.00 0.50 0.34 1.00 0.50 0.33 R1=R2 R1=∞ R2=0 ohm R1=2•R2 Gio*= R1 / [(R1+R2)•Rs] [A/V] VM1 5V Rh Rs RSP R2 SPIN CTL R1 1.65v REF HB HU+ HUHV+ HVHW+ HWU V W M GND (9 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER SLIDE channel The relationship between the differential voltage between SLIN and REF and the torque is shown in right Figure. The voltage gain[Gvo] is 1.0 [V/V]. The current gain is 2.0[A/V ](at sensing resistor : 0.5 ohm and R1=∞,R2=0ohm) in forward torque directions, and the dead zone is from 0mV to 60mV (at R1=∞,R2=0ohm). The coil current gain under the reverse torque is the same with in forward torque directions.And the limitation function gets on when the differential voltage of VM23(12V) to RSL is 0.5V. Therefore current-gain-control and current-limit of this IC is determined with sensing resister value. Forward current limit Gio Dead zone SL*IN -REF (V) Dead zone VM23 Gio Rs RSL Forward R2 SLIN CTL Reverse SL+ M R1 1.65v current limit REF SLGND Reverse The example of current-gain and current-limit of SLIDE. Gio* [A/V] Rs [Ω] Ilim [A] 0.50 1.00 2.00 1.00 0.66 0.75 0.66 1.33 0.66 0.44 1.00 0.50 1.00 0.50 0.33 R1=∞ R2=0 ohm R1=R2 R1=2•R2 Gio*= R1 / [(R1+R2)•Rs] [A/V] (10 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER FOCUS / TRACKING channel The focus and tracking channel is the voltage control drive using BTL . The focus and tracking is the same composition. The relationship between the differential voltage between FOIN and REF and the output voltage is shown in below Figure. The voltage gain [Gvo] is 5.0 [V/V]. The maximum range of output swing is limited around 7.5 volts,in case of VM4 is above 10 volts. R FOIN 2.5R FO- R REF R Coil 2.5R VM4 R R FO+ R Output voltage [V] FO- FO+ + Coil - VM4 2 FOIN– REF (V) Vo Coil Gvo = 5 [v/v] Vo=[FO+]–[FO-] =5X (FOIN–REF) FO- FO+ (11 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER Direct PWM operation The spindle and the slide channel is controlled by the direct PWM control. Also,built-in the current limit circuit. This IC controls the motor current directly. FORWARD Current path timing 1. FORWARD Current path timing 2. VM23 VM23 Rs Rs RSL RSL Current path 1 SL+ SL- M SL+ M SL- GND GND Current path 2 Current path 1 Control value Io=Vrs / Rs Current path 2 Control value Motor current carrier period Time ( 12 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER PWM carrier frequency setting PWM carrier frequency is decided by charging and discharging the capacitor that is connected to OSC terminal outer IC. Examination of the relationship the capacitor connected to OSC terminal and PWM carrier frequency is given in following table. Capacitor [pF] Carrier Frequency [KHz] 330 220 180 130 110 65 90 110 140 160 *note) This PWM carrier frequency is TYP value. The relationship between hall-amplifier-input and output-current-commutation at SPINDLE DRIVE The relationship between the hall elements and the motor output current is shown in bellow Figure. Hw+ Hv+ Hu+ Hall input Hall elements Outer roter W U V V W + Output current V U W U V REVERSE SPIN < REF U V W 0 - U W V U FORWARD SPIN > REF W FG function at SPINDLE DRIVE The FG terminal outputs the square pulse signal synchronizing with the Hall inputs [Hv+, Hv-] timing. And, the FG terminal is open-collector output. Phase delay circuit at SLIDE Phase delay circuit is built in the IC to detect an output spike current, when the motor current direction is switching. In switching the motor current direction, Phase delay circuit switch-off all output trangister of H-bridge for 3µsec. Output current setting at SLIDE In this IC, since output tranjister is NPN-type tranjister, motor coil current (Io) is larger than sensing resistance current about 20mA (TYP.) according to base current of output tranjister. Therefore please design output current with consisting these base current. ( 13 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER I/O circuit • FOIN, TOIN, SPIN LOIN+, LOINOPIN-, REF • Hu+, HuHv+, HvHw+, Hw- • MU1, MU2 5VCC • OSC 5VCC 2K 2K 5VCC 5VCC 2K 2K 2K 8K 10K 2K 30K • HB • VM1, RSP, U, V, W • FG 5VCC 5VCC VM1 5VCC RSP U V W GND VM23 • VM4, FO+, FO-, TO+, TO- 9Vmax Inside REG VM4 FO+ TO+ FO- TO- GND • VM23, RSL, SL+, SL-, LO+, LOVM23 RSL SL+ SL- LO+ LO- GND ( 14 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER [The boards for thermal derating evaluation] Board material 1st layer [TOP view] Glass-epoxy FR-4 2nd layer [BACK view] Size 70 x 70mm N-type board thickness [2 layer] t=1.6mm 1 and 2 layers material : copper O-type board thickness :t=18µm [2 layer] P-type board [1 layer] POWER-SSOP 42P9R-B Heat sink Lead Chip mounted IC Evaluation board ( 15 / 16) REV990118 MITSUBISHI SEMICONDUCTORS Preliminary M63010FP SPINDLE MOTOR AND 4CH ACTUATOR DRIVER [APPLICATION CIRCUIT no.1] MCU R9 R10 5 to 12v Slide Loading LOIN- 42 MU1 SLIN 41 3 MU2 OSC 40 4 VM23 LO+ 5VCC VM4 39 5 6 TOTO+ 37 7 LOGND SLIDE 8 RSL FO+ 35 M 9 SL+ FO- 34 10 SL- GND PREG REGO 33 SGND GND 30 FOIN 28 M Loading RSL 1 LOIN+ 2 11 GND 12 W V 13 RSP M 14 38 36 5V TS FS 3.3v 103 32 31 8.2K 29 15 U RSP 16 HW- TOIN 27 17 HW+ SPIN 26 18 HV- REF 25 19 HV+ FG 24 20 HUHU+ HB 23 VM1 22 21 R9 C1 R7 ( 16 / R8 R5 R6 R3 R4 R2 R1 1.65v DSP 10K Rh 13.8K 6v to 12v *Pull-up resistance 16) REV990118