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| ICs for Compact Disc/CD-ROM Player AN8470NSA Spindle motor driver IC for optical disk s Overview The AN8470NSA is a high performance IC suited for driving a spindle motor of an optical disk such as CD-ROM, PD, DVD, CD-R, CD-RW, etc. 32 11.00.3 17 Unit: mm 6.10.3 s Features * Low power consumption due to a direct PWM system * With start and stop pin * Reverse breaking by EC/ECR voltage * With Hall bias pin * Surface-mount small package 8.10.3 0.650.10 1 16 0.2-0.05 1.50.2 +0.10 (0.625) 0.65 0.3 -0.05 +0.10 s Applications * High speed CD-ROM drive PD, DVD, CD-R, CD-RW drives Seating plane 0.650.10 0.10.1 (0.5) SSOP032-P-0300 VPUMP s Block Diagram VDD BC4 BC3 BC2 BC1 9 11 12 13 14 15 Start FG 7 24 Start/stop Step-up voltage circuit OSC H1H H1L H2H H2L H3H H3L VH 23 22 21 19 18 Amp. 17 8 Hall bias Hall amp. matrix Distributor circuit Amp. Output circuit 6 Thermal protection VM1 32 VM2 3 1 31 A1 A2 A3 PWMOUT 2 30 RNF2 RNF1 EC ECR 27 VT 26 SRESET FF PNFOUT x5 10 GND FC 25 Oscillator VCL SSET 1 AN8470NSA s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol A2 RNF2 A1 N.C. N.C. VM1 Start VH VDD GND BC4 BC3 BC2 BC1 VPUMP N.C. Description Drive output 2 Current det. pin 2 Drive output 1 N.C. N.C. Motor supply voltage pin 1 Start/stop changeover pin Hall bias pin Supply voltage pin Ground pin Booster capacitor connection pin 4 Booster capacitor connection pin 3 Booster capacitor connection pin 2 Booster capacitor connection pin 1 Booster pin N.C. ICs for Compact Disc/CD-ROM Player Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbol H3L H3H H2L N.C. H2H H1L H1H FG FC ECR EC N.C. N.C. RNF1 A3 VM2 Description Hall element-3 negative input pin Hall element-3 positive input pin Hall element-2 negative input pin N.C. Hall element-2 positive input pin Hall element-1 negative input pin Hall element-1 positive input pin FG signal output pin Oscillator pin Torque command reference input pin Torque command input pin N.C. N.C. Current det. pin 1 Drive output 3 Motor supply voltage pin 2 s Absolute Maximum Ratings Parameter Supply voltage *2 Symbol VDD VM1 VM2 Rating 6.0 Unit V Drive output voltage *5 *6 V(m) V(n) IDD 15.0 0 to VDD 30.0 1 200 30.0 293 -20 to +70 -55 to +150 V V mA mA mA mW C C Control signal input voltage Supply current Drive output current Hall bias current Power dissipation *3 *4 I(o) IHB PD *1 Operating ambient temperature Storage temperature *1 Topr Tstg Note) Do not apply external currents or voltages to any pins not specifically mentioned. For circuit currents, '+' denotes current flowing into the IC, and '-' denotes current flowing out of the IC. *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: The voltage in the step-up voltage circuit exceeds the supply voltage. For the allowable value of the step-up voltage, refer to "s Electrical Characteristics". *3: For 70C and IC alone. *4: o = 1, 2, 3, 6, 30, 31, 32 *5: m = 1, 3, 31 *6: n = 7, 17, 18, 19, 21, 22, 23, 26, 27 2 ICs for Compact Disc/CD-ROM Player s Recommended Operating Range Parameter Supply voltage Symbol VDD VM1 VM2 Range 4.5 to 5.5 AN8470NSA Unit V s Electrical Characteristics at Ta = 25C Parameter Overall Circuit current 1 Circuit current 2 Start/stop Start voltage Stop voltage Hall bias Hall bias voltage Hall amplifier Input bias current In-phase input voltage range Minimum input level Torque command In-phase input voltage range Offset voltage Dead zone Input current Input/output gain Output High-level output saturation voltage Low-level output saturation voltage Torque limit current OSC Charging current Upper threshold voltage Lower threshold voltage ICH VCH VCL VDD = 5 V VDD = 5 V VDD = 5 V -65 1.75 0.35 -50 2.50 0.50 -35 3.25 0.65 A V V VOH VOL ITL VDD = 5 V, IO = -500 mA VDD = 5 V, IO = 500 mA VDD = 5 V, RCS = 0.33 455 0.25 0.25 570 0.50 0.50 685 V V mA EC ECOF ECDZ ECIN ACS VDD = 5 V VDD = 5 V VDD = 5 V VDD = 5 V, EC = ECR = 2.5 V VDD = 5 V, RCS = 0.33 0.5 -100 0 -5 0.36 0 75 -1 0.48 3.9 100 150 0.60 V mV mV A A/V IBH VHBR VINH VDD = 5 V VDD = 5 V, except for H2H, H2L VDD = 5 V 1.5 60 1 5 4.0 A V mV[p-p] VHB VDD = 5 V, IHB = 20 mA 0.7 1.1 1.6 V VSTART VSTOP Voltage with which a circuit operates at VDD = 5 V and L H Voltage with which a circuit becomes off at VDD = 5 V and H L 2.7 0.7 V V IDD1 IDD2 VDD = 5 V in power save mode VDD = 5 V 0 9 0.1 14 mA mA Symbol Conditions Min Typ Max Unit 3 AN8470NSA ICs for Compact Disc/CD-ROM Player s Electrical Characteristics at Ta = 25C (continued) Parameter FG FG output high-level FG output low-level In-phase input voltage range FG hysteresis width Step-up circuit Step-up voltage * Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Symbol Conditions VDD = 5 V, IFG = - 0.01 mA VDD = 5 V, IFG = 0.01 mA VDD = 5 V VDD = 5 V VDD = 5 V, VM1 = VM2 = 5 V Min Typ 10 Max 0.5 3.0 20 Unit FGH FGL VFGR HFG 3 1.5 5 V V V mV VPUMP 9.5 15 V Parameter Thermal protection Thermal protection operating temperature Thermal protection hysteresis width Symbol VDD = 5 V VDD = 5 V Conditions Min Typ Max Unit C C TSDON TSD 170 45 s Terminal Equivalent Circuits Pin No. 1 A2 32 6 Symbol Equivalent circuit 2 RNF2 31 1 3 3 A1 2 30 4 5 6 7 N.C. N.C. VM1 Start 7 25 k (typ.) 25 k (typ.) N.C. N.C. Refer to pin 1 4 ICs for Compact Disc/CD-ROM Player s Terminal Equivalent Circuits (continued) Pin No. 8 VH 8 AN8470NSA Symbol Equivalent circuit 9 10 11 VDD GND BC4 Supply voltage pin Ground pin 14 13 12 BC3 11 12 15 13 BC2 14 BC1 15 VPUMP 16 17 N.C. H3L N.C. 18 18 H3H 17 2 k (typ.) 2 k (typ.) 22 23 19 H2L 21 2 k (typ.) 2 k (typ.) 19 20 N.C. N.C. 5 AN8470NSA s Terminal Equivalent Circuits (continued) Pin No. 21 22 23 24 H2H H1L H1H FG Symbol ICs for Compact Disc/CD-ROM Player Equivalent circuit Refer to pin 19 Refer to pin 17 Refer to pin 17 VDD 50 k (typ.) 24 25 FC VDD 25 1 k (typ.) 1 k (typ.) 26 ECR VDD 27 EC 26 1 k (typ.) 28 29 30 31 32 N.C. N.C. RNF1 A3 VM2 N.C. N.C. Refer to pin 1 Refer to pin 1 Refer to pin 1 27 1 k (typ.) 6 ICs for Compact Disc/CD-ROM Player s Usage Notes * Prevent this IC from being line-to-ground fault. AN8470NSA (To be concrete, do not short-circuit any of A1 (pin 3), A2 (pin 1) and A3 (pin 31) with GND pin (pin 10).) * Be careful of the following three pins because their static breakdown voltages are low. (C = 200 pF, R = 0 ) Pin 11: breakdown at 80 V Pin 14: breakdown at 90 V Pin 24: breakdown at 190 V s Application Note * Phase conditions between Hall input and output current H1 H3 H2 H1 H2 H3 0 ECR EC 0 Emit Output current Sink Emit Output current Sink Emit Output current Sink A B C D E F Phase of Hall pin H1H H2H H3H A B C D E F H MH ML L ML MH ML L ML MH H MH ML MH H MH ML L 7 A1 0 A2 0 0 A3 AN8470NSA s Application Circuit Example ICs for Compact Disc/CD-ROM Player 15 VPUMP VDD = 5 V 0.1 F 0.1 F 0.1 F 5V 11 BC4 12 BC3 13 BC2 Start 7 14 BC1 Start/stop Step-up voltage circuit OSC FG 24 H1H 23 H1L 22 H2H 21 H2L 19 H3H 18 Amp. H3L 17 VH 8 Hall bias Hall amp. matrix Distributor circuit Amp. Output circuit 6 VM1 Thermal protection 9 VDD 32 VM2 3 A1 1 A2 31 A3 2 RNF2 30 RNF1 PWMOUT Spindle speed EC control signal 26 ECR 27 VT FF PNFOUT SRESET x5 10 GND RCS = 0.33 FC 25 560 pF Oscillator VCL SSET 8 |
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