AMC DOC. #: AMC5902_B March 2004 AMC5902 6CH Motor Driver for CD-ROM, DVD-ROM ADD MICROTECH CORP. DESCRIPTION The AMC5902 is a monolithic chip with 6 channel motor drivers designed by advanced BiCMOS process technology. The AMC5902 contains 3 BTL drivers,2 PWM drivers and a 3-phase spindle motor driver. The AMC5902 is the best fit for modern optical disk driver system which has spindle motor and all actuators. The AMC5902 contains a direct PWM control system for spindle and two slide channels drive thus that the total power consumption can be reduced. Besides, voltage supplies for spindle, slide, focus/tracking and loading can be set separately. FEATURES Designed by advanced BiCMOS process, low power and low chip temperature. Patented package to reduce chip temperature. 3 BTL drivers, 2 PWM drivers and 3 phase spindle motor driver. Built-in triangular-wave generator. 0 to 5V wide voltage range for input pins Thermal shutdown with 30°C hysteresis. Built-in current limit, hall bias,short brake, FOUT output and reverse protection circuit. Further more, the two control modes -ON/OFF of loading, FOUT amplifier, brake mode select of spindle driver, standy mode, thermal shut down circuit are internally designed in. These features make the AMC5902 an ideal device for optical disc related systems. APPLICATIONS CD-RW, DVD-RW CD-ROM, DVD, DVD-ROM Optical Disc Related Systems. PACKAGE PIN OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 AMC 5902 DS HU+ HUHV+ HVHW+ HWHB PGND1 U VCC1 V GND GND GND GND GND PGND2 W VCC2 CSSP FOUT CTL1 CTL2 SPIN DGND LDIN VREF 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 VCC6 FOIN TKIN VCC4 LDO+ LDOTKO+ TKOFO+ FOVCC5 GND GND GND GND GND AGND SO1+ SO1SO2+ SO2SLGND CS2 CS1 VCC3 IN2SL IN1SL TSOP-54L (TOP VIEW) ORDER INFORMATION TA (°C) 0 to 70 Plastic TSOP 54-Pin AMC5902DS AMC5902DSF DS Note: Package is available with Tape & Reel. Append the letter “T” to part number (i.e. AMC5902DST). The letter “F” is marked for Lead Free process . Copyright 2003, 2004 ADD Microtech Corp. 1 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM TYPICAL APPLICATION R1 M 11 22 33 HU+ VCC6 54 HU- FOIN HV+ TKIN 53 52 4 55 HV- VCC4 HW+ LDO+ 66 HW- LDO- 7 8 HB TKO+ PGND1 TKO- 47 9 U FO+ 49 48 FO- 46 45 VCC5 44 GND 43 GND 42 GND GND 41 40 GND 39 V GND 14 GND 15 GND 16 GND 17 18 PGND2 AGND 38 W SO1+ 37 19 20 VCC2 SO1- CSSP SO2+ 36 35 21 FOUT SO2- 34 µ-COM 22 CTL1 SLGND 33 µ-COM 23 CTL2 CS2 32 24 SPIN CS1 31 25 DGND VCC3 30 26 LDIN IN2SL 27 VREF IN1SL 29 28 R3 12V R4 R5 SPINDLE IN LOADING IN R6 AMC5902DS VCC1 11 12 13 GND FOCUS IN R8 TRACKING IN 51 50 10 R2 R7 M TRACKING LOADING FOCUS 5V M SLIDE R9 R10 R11 SLIDE IN 2 R12 SLIDE IN 1 1.65V 12V Example values for external parts Part name Value(typ) Unit R1 33 Ω Depends on application R2 100 Ω Depends on application R3 0.33 Ω Illim=1.42A,Gain=3.0A/V R4 10k Ω Depends on application R5 0 Ω Depends on application. R6 8.2k Ω Depends on application R7 6.6k Ω Depends on application R8 20k Ω Depends on application R9, R10 1 Ω llim=0.47A,Gain=0.47A/V R11, R12 12k Ω Depends on application Copyright 2003, 2004 ADD Microtech Corp Remark 2 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM ABSOLUTE MAXIMUM RATINGS (Note 1) Limits Parameter Symbol POWER MOS power supply voltage VCC1,VCC2,CS1,CS2 15 Preblock/BTL powerblock power supply voltage VCC3,VCC4,VCC5 15 PWM control blockpower supply voltage VCC6 7 Operating junction temperature Tj 150 Storage temperature range Tstg -40 to 150 Lead Temperature (soldering, 10 seconds) 260 Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of the specified terminal. Unit V V V °C °C °C RECOMMENDED OPERATING CONDITIONS Parameter Symbol POWER MOS power supply voltage POWER MOS power supply voltage Internal block/BTL power block power supply voltage Power supply (for focus and tracking) PWM control block power supply voltage Tracking, focus and loading output current Spindle output current Slide output current Focus/Tracking output current Min VCC1,VCC2 CS1,CS2 VCC3,VCC4 VCC5 VCC6 IO1 IO2 IO3 IO4 Typ. Max VCC4 VCC3 VCC5 12 14 4.3 5.0 VCC4 4.3 5.0 6.0 0.5 0.8 1.2 *2.5 0.5 0.8 0.5 0.8 Unit V V V V V A A A A *The current is guaranteed 3.0A in case of the current is turned on/off in a duty ratio of an 1/10 with a maximum on time of 5msec. Package θJA (°C /W ) Derating factor ( mW/°C ), TA ≥ 25OC THERMAL DATA TA ≤ 25°C Power rating(mW) DS 57.6 17.36 Note: TJ = TA + PD × θJA PD: Power dissipation. θJA: Thermal resistance from Junction to Case. DF : Derating factor, θJA = 1 / DF 1. 2. 3. 2200 TA=70°C Power rating(mW) TA= 85°C Power rating (mW) 1419 1158 The θJA numbers are guidelines for the thermal performance of the device/PC-board system. All of the above assume no ambient airflow. If power consumption is over above rating, adequate heat sink is required to dissipate heat. Copyright 2003, 2004 ADD Microtech Corp 3 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM FOUT SO2+ SO2- CS2 VCC3 SO1+ SO1- CS1 U V VCC2 W Reverse Detect FG HU+ HUHV+ HVHW+ HWHB CSSP VCC1 BLOCK DIAGRAM Logic Logic 120° MATRIX Hall Bias Current Amp CTL Amp Current Amp CTL Amp Direction Comp. VCC6 Current Amp CTL Amp VREF Direction Comp. Direction Comp. R2 STBY/BRAKE CONTROL R4 R1 SPIN IN1SL CTL1 OSC CTL2 TSD GND R6 R3 R5 IN2SL TKIN VCC5 FOIN LDIN R 2R R 2R R VCC4 2R LDO× 7.5 × 7.5 × 7.5 FO+ FO- TKO+ TKO- LDO+ Reference values for internal components Value(typ) Unit R1, R2 Part name 15k Ω R3, R4, R5, R6 47k Ω R 47k Ω Copyright 2003, 2004 ADD Microtech Corp 4 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM PIN DESCRIPTION Pin No. Pin Name Pin Function Pin No. Pin Name 1 HU+ HU+ sensor Amp. input 54 VCC6 2 HUHU- sensor Amp. input 53 FOIN 3 HV+ HV+ sensor Amp. input 52 TKIN 4 HVHV- sensor Amp. input 51 VCC4 5 HW+ HW+ sensor Amp. input 50 LDO+ 6 HWHW- sensor Amp. input 49 LDO7 HB Bias for Hall sensor 48 TKO+ 8 PGND1 Spindle driver power ground 1 47 TKO9 U Motor drive output U 46 FO+ 10 VCC1 Motor power supply 1 (for spindle) 45 FO11 V Motor drive output V 44 VCC5 12 GND Ground 43 GND 13 GND Ground 42 GND 14 GND Ground 41 GND 15 GND Ground 40 GND 16 GND Ground 39 GND 17 PGND2 Spindle driver power ground 2 38 AGND 18 W Motor drive output W 37 SO1+ 19 VCC2 Motor power supply 1 (for spindle) 36 SO120 CSSP Spindle current sense 35 SO2+ 21 FOUT Frequency generator output 34 SO222 CTL1 Control input 1 33 SLGND 23 CTL2 Control input 2 32 CS2 24 SPIN Spindle control input 31 CS1 25 DGND PWM block pre-ground 30 VCC3 26 LDIN Loading control input 29 IN2SL 27 VREF Reference 28 IN1SL Pin Function PWM block control power supply Focus control input Tracking control input Motor power supply 4 (for loading) Loading non-inverted output Loading inverted output Tracking non-inverted output Tracking inverted output Focus non-inverted output Focus inverted output 5V Power supply (for focus, tracking) Ground Ground Ground Ground Ground Ground Slide non-inverted output 1 Slide inverted output 1 Slide non-inverted output 2 Slide inverted output 2 Slide driver power ground Slide current sense 2 Slide current sense 1 Motor power supply 3 (for slide) Slide control voltage input 2 Slide control voltage input 1 DC ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specifications apply to operating ambient temperature TA = 25°C, VCC6 = VCC5= 5V, VCC3 = VCC4 = 12V, Vref =1.65V, RSP=0.33Ω,RSL1=RSL2=0.5Ω. Parameter Common Section Quiescent current 1 Quiescent current 2 Quiescent current 3 Standy-on current 1 Standy-on current 2 Copyright 2003, 2004 ADD Microtech Corp Symbol IQ1 IQ2 IQ3 IST1 IST2 Test Conditions VCC4 (CTL1=L,CTL2=H) VCC4 (CTL1=H,CTL2=L) VCC6 (CTL1=L,CTL2=H) VCC4 (CTL1=L,CTL2=L) VCC6 (CTL1=L,CTL2=L) 5 AMC5901 Min Typ. Max - 18 14 3.5 0.2 - 23 16 4.9 0.3 0.1 Units mA mA mA mA mA www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM DC ELECTRICAL CHARACTERISTICS (continued) Unless otherwise specified, these specifications apply to operating ambient temperature TA = 25°C, VCC6 = VCC5= 5V, VCC3 = VCC4 = 12V, VREF =1.65V, RSP=0.33Ω,RSL1=RSL2=0.5Ω. Parameter Spindle Section Control voltage dead zone Spindle gain control Spindle control limit Output ON resistor(upper) Symbol VD_SP Av_SP Gm_SP VLIM_SP ILIM_SP RONUSP Test Conditions RSP=0.33Ω ILIM_SP = VLIM_SP / RS RSP=0.33Ω IL=0.5A Min AMC5902 Typ. Max Units 20 0.8 2.4 0.4 1.2 - 50 1.0 3.0 0.47 1.42 0.6 90 1.2 3.6 0.54 1.64 1.0 mV V/V A/V V A Ω Output ON resistor(lower) PWM freguency Hall sensor common mode input range Hall sensor differential input range HBIAS output voltage HBIAS sink current FOUT high voltage FOUT low voltage Slide Section RONLSP IL=-0.5A Fosc - 0.3 110 0.5 - KHz VCMH 1 - 4 V VDIH VOHB IHB VFGH VFGL 50 0.7 - 1.15 1 4.9 0.1 1.6 5 - mVpp V µA V V Control voltage dead zone VD_SL Av_SL Gm_SL RS=0.5Ω VLIM_SL ILIM_SL = VLIM_SL / RS 15 40 65 mV 0.4 0.8 0.5 1.0 0.6 1.2 V/V A/V 0.4 0.47 0.54 V ILIM_SL RS=0.5Ω RONUSL IL=0.5A RONLSL IL=-0.5A Fosc 0.8 - 0.94 1.5 0.75 110 1.08 1.8 1.0 - A Ω Ω KHz VOFF V_SHLO IL=0.5A, VCC4－(OUT+) V_SLLO IL=-0.5A, (OUT-)－GND -50 - 1.1 0.46 50 1.4 0.8 mV V V 16.0 17.5 19.0 dB -50 - 0.45 0.45 50 0.8 0.8 mV V V AV_FO 16.0 17.5 19.0 dB V_H V_L 2.0 - - 0.5 V V Slide gain control Slide control limit Output ON resistor(upper) Output ON resistor(lower) PWM freguency Loading Section Output offset voltage Output saturation voltage “H” Output saturation voltage “L” Loading gain control Focus / Tracking Section Output offset voltage Output saturation voltage “H” Output saturation voltage “L” Actuator gain control CTL1,CTL2 Input high voltage Input low voltage Copyright 2003, 2004 ADD Microtech Corp IHB= 10mA 100kΩ pull up to VCC6 AV_LO VOFF V_SHFO IL=0.5A, VCC5－(OUT+) V_SLFO IL=-0.5A, (OUT-)－GND 6 Ω www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM Parameter Symbol Test Conditions Others VREF drop muting VCC4/VCC6 drop muting Thermal Characteristics Thermal shut down temperature AMC5902 Units Min Typ. Max 0.4 3.4 0.7 3.8 1.0 4.2 V V - 150 175 - °C °C TSD_OFF TSD_ON OUTPUT CIRCUIT Spindle motor driver output PWM driver output slide 1,2 VCC1 CS1 (VCC2) W (CS2) V U (SO1-) (SO1+) SO2- SO2+ PGND1 PGND2 SLGND BTL driver output LDO BTL driver output FO, TKO VCC4 VCC5 VCC4 VCC5 VCC4 (FO-) LDO- Copyright 2003, 2004 ADD Microtech Corp TKO- LDO+ 7 VCC5 (FO+) TKO+ www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION Spindle channel The spindle motor torque is controlled by the differential voltage of SPIN and VREF. The voltage gain, AV_SP , is 1.0(V/V). The limitation function starts to take effect when the differential voltage of VCC1 and CSSP is over 0.47V. Current gain is equal to AV_SP / RSP. Slide channel The slide motor torque is controlled by the differential voltage of IN1SL (IN2SL) and VREF. The voltage gain, AV_SL , is 0.5(V/V). The limitation function starts to take effect when the differential voltage of VCC3-CS1(CS2) is over 0.47V. Current gain is equal to AV_SL / RSL. Iop Reverse Iosp IOSL Forward VO4/RsL VO1/RsL Iop VO2/RsL VO3/RsL Iosp or IOSL Current gain CNTL-VREF (V) VI4 VI2 VI3 VI1 Iop..the peak current of Iosp or IoSL Dead zone Spindle driver Slide driver VI1=150mV, VI2=110mV, VI4=-150mV, VI3=-110mV VI1=250mV, VI2=130mV, VI4=-250mV, VI3=-130mV Gm(+)=(VO1-VO2)/(150-110)/0.33 Gm(-)=(VO4 -VO3)/(150-110)/0.33 Gm(+)=(VO1-VO2)/(250-130)/0.5 Gm(-)=(VO4 -VO3)/(250-130)/0.5 Gain expression Input-output gain Gm(A/V) Output-limit current Gain with the added resistor Gm(A/V) Spindle 1.0/Rsp 0.47/Rsp 15k/[(R1+15k)xRSP] VCC1 VCC2 VCC3 RSP CSSP CNTL R1 SPIN PGND1,2 Slide 0.5/RsL 0.47/RsL 0.5x15k/[(R1+47k)xRSL] RSL HB HU+ HUHV+ HVHW+ HWU V W Copyright 2003, 2004 ADD Microtech Corp CS1 (CS2) CNTL R1 IN1SL (IN2SL) Forward SO1+ (SO2+) M SO1(SO2-) Reverse GND 8 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION (continued) Loading control The loading output voltage is set internally to be 7.5 × (LDIN-VREF). With LDIN is higher/ equal/ lower to VREF,the motor can be set to Forward/ Short brake/ Reverse functions.. VCC4 Forward Load input LDO+ R1 LDIN Loading Channel M LDOReverse Focus / tracking channel The focus and tracking output voltage is set internally to be 7.5 × (FOIN-VREF). With FOIN (TKIN) is higher/ equal/ lower to VREF, the motor can be set to Forward/ Short brake/ Reverse function. VCC5 Focus input R1 Forward FOIN Focus Channel FO+ FOReverse Gain expression Loading (LO+ - LO-) Focus (FO+ - FO-) Tracking (TKO+ - TKO-) Copyright 2003, 2004 ADD Microtech Corp Gain with the added resistor Av(V/V) 7.5x 47k/(R1+47k) 7.5x 47k/(R1+47k) 7.5x 47k/(R1+47k) 9 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION (continued) Table of chip control function 1.Circuit control terminal 1 and 2 (CTL1-pin22 and CTL2-pin23) The device can be set to standby mode to reduce power dissipation, and spindle-driver braking mode can be switch on/off by inputting combinations of on/off to these terminals. CTL1 L H O…ON CTL2 L L H Spindle Slide Focus Tracking Loading X X O X X O X X O X X O X O X X…OFF CTL1 CTL2 SPIN >VREF SPIN < VREF L H H H Forward-rotation mode Forward-rotation mode Reverse-rotation braking mode Short-circuit braking mode 1.1 Reverse-rotation braking mode (spindle) A reverse-rotation torque is applied when SPIN < VREF. Reverse-rotation is detected with SPIN input and Hall input.If the spindle detects reverse rotation when SPIN < VREF, all outputs are shorted out to GND. 1.2 Short-circuit braking mode (spindle) All the spindle driver outputs are shorted out to GND when SPIN < VREF. 1.3 Standby mode The IC is brought into standby mode,and its power dissipation can be limited. 1.4 Driving muting All the output channels except the loading are muted and their outputs are turn off 2.Muting functions 2.1 Over voltage protection circuit When the voltage at VCC4 terminal drops to upper than 15.5V(typ.), the output of only the spindle block is turned off. 2.2 VCC4/VCC6-drop muting When the voltages at VCC4 terminal and VCC6 terminal drop to lower than 3.8V(typ.), the outputs of all the channels are turned off. 2.3 VREF-drop muting When the voltage at VREF terminal drops to a value lower than 0.7V(typ.),the outputs of all the channels are turned off.Set the VREF terminal voltage to larger than 1.0V. 3 PWM oscillation frequency The PWM oscillation for driving the spindle and slide is free running.The oscillation frequency is 100kHz(typ.). 4. FOUT function The FOUT terminal outputs the square pulse signal synchronizing with the Hall inputs (HW+, HW-) timing. The FOUT terminal is an open-collector output. Copyright 2003, 2004 ADD Microtech Corp 10 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION (continued) 5. The waveforms between U V W output-current and hall-amplifier-input SPIN VREF HU+ HU- HV+ HV- HW+ HW- Forward rotation mode Reverse rotation mode Short brake Reverse protection FWD FWD FWD REV » » » » » » » » » » » » » » » » » » » » » H U Z L H V Z L H W Z L Copyright 2003, 2004 ADD Microtech Corp 11 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION (continued) When power dissipation is over 1.4W (TA=70°C), additioned heat sink is required to control chip junction temperature below 150°C. The power TSOP package has 10 GND pins connected to internal leadframe pad for enhanced power dissipation (12-16,39-43) performance. Using bigger area of ground plane (as heat sink) can reduce chip temperature significantly. TJ = TA + PD (θJC + θCA ) For power TSOP package, θJC = 6.1° C / W For further improvement of heat problem, extra heat sink can be used by clipping it to the thermal pad on the top. Copyright 2003, 2004 ADD Microtech Corp 12 www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM APPLICATION INFORMATION (continued) 54-Lead Thin Small Outline Plakage (TSOP) INCHES 1 MILLIMETERS MIN TYP MAX MIN TYP MAX - - 0.047 - - 1.20 A1 0.002 0.004 0.006 0.05 0.1 0.15 A2 0.037 0.039 0.041 0.95 1.00 1.05 - - 0.35 - A b - 0.014 D 0.871 0.875 0.879 22.12 22.22 22.32 E 0.396 0.400 0.404 10.06 10.16 10.26 H 0.455 0.463 0.471 e 11.56 11.76 11.96 0.031BSC L 0.016 0.020 0.80BSC 0.024 0.40 0.50 0.60 L1 - 0.031 - - 0.80 - Z - 0.028 - - 0.71 - - - 0.004 - - 0.10 - 8 θ Y θ Copyright 2003, 2004 ADD Microtech Corp 13 o 0 o - 8 o 0 o o www.addmtek.com AMC5902 AMC DOC. #: AMC5902_B March 2004 6CH Motor Driver for CD-ROM, DVD-ROM IMPORTANT NOTICE ADD Microtech (ADDM) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. ADDM integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of ADDM products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer’s applications, the customer should provide adequate design and operating safeguards. ADDM assumes to no liability to customer product design or application support. ADDM warrants the performance of its products to the specifications applicable at the time of sale. U.S. Asia Pacific region ADD Microtech Inc. 492 Altamont Drive Milpitas, CA 95035 ADD Microtech Corp 13F, 287, Sec 3, Nan Jin E. Road Taipei, Taiwan T E L : (408) 9410420 FA X : (408) 9410864 T E L : 2-27132800 FA X : 2-27132805 Copyright 2003, 2004 ADD Microtech Corp 14 www.addmtek.com