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| ICs for Compact Disc/CD-ROM Player AN8481SB Spindle motor driver IC for optical disk I Overview The AN8481SB 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. 18.400.20 (5.15) (4.80) 28 22 21 15 (1.315) 0.30 -0.05 +0.10 Unit: mm I Features * Adopting the 3-phase full-wave soft switch system * With switching regulator control function * With start and stop pin * Reverse breaking by EC/ECR voltage * With Hall bias pin * Surface-mount small package 10.930.30 8.300.20 0 to 10 1 7 8 14 2.700.20 0.650.20 (1.20) 0.80 (6.40) 0.35 -0.05 +0.10 I Applications * High speed CD-ROM drive * PD, DVD, CD-R, CD-RW drives Seating plane HSOP042-P-0400 Note) The package of this product will be changed to lead-free type (HSOP042-P-0400D). See the new package dimensions section later of this datasheet. 0.100.10 Publication date: November 2001 SDD00007BEB 1 AN8481SB I Block Diagram CS1 VM FG PG A1 A2 26 A3 25 20 22 27 9 FG comparator REF 21 Thermal protection circuit VTL 13 VCC PCI VREG Lower 19 side VCE detection Amp. Amp. Upper side distribution Lower side distribution PCS SWB 18 Direction changeover 17 Amp. Direction detection 16 ER Logic EP = ER x EA Start/stop Absolute value 28 12 SWG Triangular wave Detection Hall bias EA 8 S/S Hall amp. matrix 15 11 EC VH I Pin Descriptions Pin No. Symbol 1 2 3 4 5 6 7 8 9 10 2 H1+ H1- H2+ H2- H3+ H3- VH SS FG ECR Description Hall element-1 positive input pin Hall element-1 negative input pin Hall element-2 positive input pin Hall element-2 negative input pin Hall element-3 positive input pin Hall element-3 negative input pin Hall bias pin Start/stop changeover pin FG signal output pin Torque command reference input pin Pin No. Symbol 11 12 13 14 15 16 17 18 19 20 EC PCI VCC SG FC SWG SWB PCS VREG VM Description Torque command input pin Current feedback phase compensation pin Supply voltage pin Signal GND pin Triangular wave oscillation pin SW-REG system GND pin SW-REG driving pin SW-REG system phase compensation pin Fixed power supply pin Motor supply voltage pin SDD00007BEB ECR FC H1+ H1- H2+ H2- H3+ H3- 10 GND 14 1 2 3 4 5 6 7 AN8481SB I Pin Descriptions (continued) Pin No. Symbol 21 22 23 24 REF CS1 N.C. N.C. Description SW-REG reference setting pin Current det. pin 1 N.C. N.C. Pin No. Symbol 25 26 27 28 A3 A2 A1 PG Description Drive output 3 Drive output 2 Drive output 1 Power GND pin I Absolute Maximum Ratings Parameter Supply voltage Symbol VCC VM VREG Control signal input voltage Supply current Output current *3 *4 Rating 7.0 14.4 Unit V V(n) ICC IO(n) IHB 0 to VCC 30 1 200 50 667 -20 to +70 -55 to +150 V mA mA mA mW C C Hall bias current Power dissipation *2 *1 PD Topr Tstg *1 Operating ambient temperature Storage temperature 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: For 70C and IC alone. *3: n = 22, 25, 26, 27, 28 *4: n = 1, 2, 3, 4, 5, 6, 8, 10, 11 I Recommended Operating Range Parameter Supply voltage Symbol VCC VM VREG Range 4.25 to 5.5 4.5 to 14 Unit V I Electrical Characteristics at Ta = 25C Parameter Overall Circuit current 1 Circuit current 2 Start/stop Start voltage Stop voltage VSTART VSTOP Voltage with which a circuit operates at VCC = 5 V and L H Voltage with which a circuit becomes off at VCC = 5 V and H L SDD00007BEB Symbol Conditions VCC = 5 V in power save mode VCC = 5 V, IO = 0 mA Min 3.5 Typ Max Unit ICC1 ICC2 0 8 0.1 16 1.0 mA mA V V 3 AN8481SB I Electrical Characteristics at Ta = 25C (continued) Parameter 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 FG FG output high-level FG output low-level In-phase input voltage range FG hysteresis width Triangular wave oscillation circuit Charging current Discharging current ICH IDCH VCC = 5 V, FC = 0.5 V VCC = 5 V, FC = 2.5 V VCC = 5 V VCC = 5 V -100 25 -50 50 -25 100 A A FGH FGL VFGR HFG VCC = 5 V, IFG = - 0.01 mA VCC = 5 V, IFG = 0.01 mA VCC = 5 V, Input D-range at H2+, H2- VCC = 5 V 3.0 1.5 1 10 VCC 0.5 3.0 20 V V V mV VOH VOL ITL VCC = 5 V, IO = -300 mA VCC = 5 V, IO = 300 mA VCC = 5 V, RCS = 0.5 390 0.9 0.2 530 1.6 0.6 670 V V mA EC ECOF ECDZ ECIN ACS VCC = 5 V VCC = 5 V VCC = 5 V VCC = 5 V, EC = ECR = 2.5 V VDD = 5 V, RCS = 0.5 1 -150 50 -5 0.31 0 100 -1 0.41 3.9 150 150 0.51 V mV mV A A/V IBH VHBR VINH VCC = 5 V VCC = 5 V VCC = 5 V 1.5 60 1 5 4.0 A V mV[p-p] VHB VCC = 5 V, IHB = 20 mA 0.7 1.2 1.6 V Symbol Conditions Min Typ Max Unit Lower side voltage detection circuit Input to output gain SW-REG driving circuit PNP driving current * Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. GV1 5 10 20 times ISWB 10 50 mA Parameter Thermal protection Thermal protection operating temperature Thermal protection hysteresis width Symbol Conditions VCC = 5 V, EC = 100 mV VCC = 5 V, EC = 100 mV Min Typ Max Unit C C TSDON TSD 170 45 4 SDD00007BEB AN8481SB I Usage Notes Prevent this IC from being line-to-ground fault. (To be concrete, do not short-circuit any of pins A1 (pin 27), A2 (pin 26) and A3 (pin 25) to VREG pin (pin 19) or VM pin (pin 20).) I Application Notes * PD Ta curves of HSOP042-P-0400 PD T a 2 400 2 232 2 200 2 000 Mounted on standard board (glass epoxy: 75 x 75 x t1.6 mm3) Rth(j-a) = 56C/W PD = 2 232 mW (25C) Power dissipation PD (mW) 1 800 1 600 1 400 1 200 1 042 1 000 800 600 400 200 0 0 25 50 Independent IC without a heat sink Rth( j-a) = 120C/W PD = 1 042 mW (25C) 75 100 125 150 Ambient temperature Ta (C) * Phase conditions between Hall input and output current Phase of Hall pin H1+ A B C D E F H H M L L M H1 H3+ L M H H M L H3 H2 H1 H2 H2+ M L L M H H H3 0 ECR EC A3 Emit Output current 0 Sink A B C D E F A2 A1 A2 A3 A1 0 SDD00007BEB 5 AN8481SB I Application Circuit Example 0.1 F RCS = 0.5 22 CS1 20 VM 28 PG 26 A2 25 A3 27 A1 9 FG 100 F 68 H 21 FG comparator REF 19 VREG 1 F 18 SWB 17 200 1 k 12 V SWG 16 Lower side VCE detection Amp. Amp. VTL Thermal protection circuit 13 VCC VCC = 5V 12 PCI Upper side distribution Lower side distribution PCS Direction changeover Amp. Direction detection ER Logic EP = ER x EA Triangular wave Detection Hall bias EA Start/stop Absolute value 0.1 F Hall amp. matrix GND 14 2 700 pF 15 FC H1+ 1 H1- 2 H2+ 3 H2- 4 H3+ 5 H3- 6 8 S/S System control High: Start ECR 10 6 SDD00007BEB Servo-torque command EC 11 VH 7 AN8481SB I New Package Dimensions (Unit: mm) * HSOP042-P-0400D (Lead-free package) 18.400.20 (5.15) (4.80) 28 22 21 15 (1.315) 0.30-0.05 8.300.20 10.930.30 +0.10 0 to 10 0.500.20 (6.40) 0.80 2.700.20 0.100.10 1 (1.20) 7 8 14 0.35+0.10 -0.05 Seating plane Seating plane SDD00007BEB 7 Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company. Please read the following notes before using the datasheets A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited. 2001 MAR |
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