LB1810M SANYO | Alldatasheet
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SANYO Spindle Motor Driver for Floppy-disk Drives OVERVIEW PINOUT The LB1810M is a three-phase, full-wave spindle motor driver IC that features digital speed control, making it egze8seaegae ideal for use in 3.5-inch floppy-disk drives. It can be [25.2 51 0 oo] (2 fe a fa] used in most disk drives without output electrolytic vee fa pro capacitors. Re [a] fai] ore vour fad] or The LB1810M incorporates both active-HIGH and Pano [rq] 10 active-LOW start/stop control inputs, a revolution detec- Fano [| ANB10M fe] Fano tor, Hall-effect transducer amplifiers with AGC, thermal renee aio B top Protection and index delay circuits, and a single-sided vout [4] [ss] x2 hysteresis index comparator. weg fe an The LB1810M operates from either a 4.2 to 6.5 V or noc [oj ag 10.2 to 13.8 V supply and is available in 44-pin QIPs. DEES gesssseeoeee
FEATURES
- Three-phase, full-wave motor driver PACKAGE DIMENSIONS * Digital speed control Unit: * Both active-HIGH and active-LOW start/stop control out: mum inputs 3148-QIP44MA * Revolution detector Hall-effect transducer amplifiers with AGC 4a2. 02 * Thermal protection circuit 10. + * Single-sided hysteresis index comparator ARRARARAAA 18 © Index delay circuit =f = * 42 w 65 V or 10.2 to 13.8 V supply =| = © 44-pin QIP 132 160 = = | aula a ode ooh bio task SANYO Electric Co.,Ltd. Semiconductor Business Headquarters TOKYO OFFICE Tokyo Bldg.,1-10,1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 6102TS(US) No.3782-1/7 ;
oo eeeeeeSSSSSSSSSSeSeSSSeeeeeSSSSSeEeEeeee BLOCK DIAGRAM I bt 10 vO = DT{ = (DTZ DIO nec Trac} > bce | Hakone Sead Index detect Se arotton |. Us po 1 eT eel RET it Dae smse| = . wout To aienni A <J . | Control ampiitior and deat tter 9st n Reference g/s2 1 [> supply x x2 boosie na sy | [a ao Fats ree tt, Foor FQ ampiitier 2 one poo hee p> ” in FGO2 FGND FGND FGND FGND FGND FGND NC PGND NC PIN DESCRIPTION a ee V-phase Hall-offect transducer amplifier inputs a rsd U-phase Hal-effect transducer amplifier inputs A eee No.3782-2/7
a SSSsSsSSSSSSsSSSSSSSSSSSeeSsSssssssssshFeseseeeeSSSSS a a a ae a a ee a a a ee pe ermnmttennie a a a a ee StarVstop circuit contro! inputs a ec a a a a [=e arevamewmvem C~*d a a a a a a a SPECIFICATIONS Absolute Maximum Ratings re ee ES a ee [Pov denon we No.3782-3/7
Recommended Operating Conditions T. = 25 °C Electrical Characteristics . Vee = 12 V, T, = 25 °C unless otherwise noted Quiescent su; A ipply current mw feat mares | - [= |_| Supply current loo SL1 and SL2 960-rpm select input volage Veu v Sa La Hal-effect transducer amplifier - common-anode input vollage re ee ee ‘ Hall-effect transducer amplifier Gifferental input voliage i ee ee Hall-effect transducer amplifier input aflotvollage Vio See note. nV Hall-otlect transduoer ampliier input bA bias current io [ow fee PP e [ UOUT, VOUT and WOUT output 4 leakage current Se Control amplifier interphase voltage gain differential eee No.3782-4/7
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7 Referenced to Vier,
Ww b= 08 mA O78 v Integrating amplifier output voltages = Referenced to Vier, v h = 0.5 mA F anplios na laeres ve esse Te Tos Te
5 LOW-toHIGH and
Senne velese hseress HIGH} LOW, ‘Se note. V- fs] - [| Ee Index detector Hall-offect transducer amplifier phase input voltage ee ee ee ee Index detector Hall-effect transducer amplifier Input bias current i ee ee eee Index detector HIGH-leve! output - Index delay circuit LOW-level output - voltage Vou. Wo =5V v Index delay circuil HIGH-level output _ votiage Vout Vp = 5 V Vv Thermal shutdown temperature Note These values are calculated ratings only and are not measured. eee : No.3782-5/7
1024 amplifier inputs for each phase as shown in table 1. cy-divider constant. When SL1 is HIGH, D is 5/8, and the voltage on the negative input. Table 1. Source and sink phase selection
BV 0.22 wr cour L ary RO 1k x Re 3.8 nF ry 082.2 nF 56 kn -FI8-200 kA lH erane ce RIO 56 KA L o gi 4] 8 $| 8) § Re Q] 2 re 5 or a7 135] {24} LAl ent Son | hi POND tue [19] «© [ roo fr] FGND | ran LB1810M vout Ll Ls) 1 083 kHz. fs] lis}? o ra Fa xt 522 pF C4 150 pF NC C201 uF pao [| [18] sz 5° [44] [22} sus EW ER) ENN) NN | Fa . i 4 Note Component values are for example only. Exact values will depend upon the motor characteristics. No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. M Anyone purchasing any products described or contained herein for an above-mentioned use shall: ® Accept full responsibility and indemnify and defend SANYO ELECTRIC CO, LTD,, its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ® Not impose any responsibility for any fault or negligence which may be cited in any such claim or Iitigation on SANYO ELECTRIC CO, LTD,, its affiliates, subsidiaries and distributors or any of . their officers and employees jointly or severally. WM Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant- eed for volume production, SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties, SSeS No.3782-7/7