HA13501S Three Phase Motor Driver with Speed Discriminator Description The HA13501S is hall sensorless three-phase brushless DC motor driver for HDD and, has the following func- tions and features. Functions * 3-phase motor drive circuit (1.2 A/phase) * Start up circuit + Digital servo system Digital ready circuit * Chip enable Motor on/off * Internal protector (OTSD, LVI) Features Hall sensorless motor driving system + Low saturation voltage; 1.5 V max. (@Ip = 0.8 A) Applicable for 4.0 MHz clock + Small surface mount package (8) < 7C/W, Ordering Information Type No. Package Preliminary HA13S018 (MP-26DT)} HA13501S MP-26DT Pin Arrangement {CO time constantsy Cy, 1 OC) U 26] Ry; CO Time Constants) (VCO time constants) Ay [] 2 25] wee (VCO time constants) Cho ol 3 24 C1 VELT > (input Filter) (votage controlled veo [] 4 237} UFLT { oscin [] 5 22f JN {To the canter tap) (Oscillator) oscout []s atlu (Output stage} anp [} 7 20] no GND [| TA TAB ] GNO {Chip enable} ceCla iollv (Output toga (Moter onvOFH MTAON C] 9 sei] w Divider sect) SEL [] 10 7] pc (Genre ame phase) sync [] 1+ 16] CS (Current sensing) Gpead ready AEADY L] 12 Oo" L] vec (Power supply} (Charge purno} CPMP oO 13 14 ] R, (integral constants) (Top View) @ HITACHI Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300 175HA13501S Block Diagram ' A ' ' duind SJUNOO PROZ aBieug PE wasigq peedg cosh 2 SO ' due 1 aayng (pay90] paeds:H) (>, Apeay Apeeu edn peeads saul} J@pIAig ! quading i ' + 1 I Od 7 __| OSLO Mm que IA} Io 1 jONUdD 1 0l> + \ 1 of | | ry Can rr ey M J0\Da}ap ' QUAS cq y ' osUCa Joyeiauab JO|Da]8 vey I Or f64)- A | Wore} yoajep O SOLO ring [Fae 273 Sd | 1 L__| ' \ ' DON 1 a ! saysnlpe ey (12) n mul oO <E voto | YY? ae) 210 . o/ | LOldD t a @) due yndjno ' SNLWLS wSIFAS CLL 20 st) , 2% ANY DIA Se - - + 2 - - - - - e n n enn r rn eee eee 2) ieieiaietie @ HITACHI Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300 176HA13501S External Components Parts No. Recommended Value Purpose Notes R101 1MQ Oscillation Ru 10kQ 2100 kQ VCO time constants 1 Ris 100 kQ< 21kQ VCOIN time constants 2 Rye _ Current sensing 3 Ry 8.2 kQs 247 kQ Integral constants 4 Ro _ Cio 10 uF and 0.1 uF Power supply by-passing C102 0.1 LF Control amp phase compensation C103 0.01 uF Cio4, C105, C106 0.01 LF Output filter C407, Ciog 10 uF Oscillation Cry _ VCO time constants 1 Cro -VCO time constants 2 Cy _ Integral constants Ca _ D, Dz Dg _ Output clamp 5 Xtal Oscillation 6 Notes: 1. The relationship of time constant Cy; * Ry and the VCO frequency fycg is shown as follows: (i) Veind = OV 0.75 f = RN (FE fy cag) vaeceseseceeesennsereeseceessseecsaneonsneepnesenseeeravaeetasaeeearseseeetsnanese ss 1 VOO = Gre Ry (= fycos) (1) (ii) OV <Vpin4 <2 V fyco = (0.75 0.34 Ved) / Cry Reg eee ec ceeecetceenaeecetteeeeceteteee ese eeeseeseeesesesenees (2) (iil) Vpind > 2 V 0-075 _ (= FV COD) oe eee ceeteteneesaeceeeeeceverertaesesecueesaeecnspsaeecareepeevae testesenenaecs (3) fvco = Cie Rey (c.f. figure 3 in references) The maximum frequency fyco; should be satisfied with the following equation: fyco1 = 0.05 V/ Prkr lo sesvosaeessvesusestiseseesssesesesesasesesesasavesisevaseseetsseeeees (4) Where, J: Morment of inertia (kg * cm * s? P : number of poles in the motor Kr : Torque constant (kg cm/A) lomax? Output maximum current (A) . The time constant Cy * Re which determine the frequency transition time of the VCO, should be satisfied with the following equation: Cro Rep = 0.5 Ty ecccccssceesneneeesseeeene ease eenseeeeetaseeessetessseeecaiseesetniaeesssnanaeaaenecee ee (5) where Ts is the motor starting up time (cf. figure 2 in references) 3. Output maximum current Igmax is determined by the following equation: lomax = Vrett J RNG vsssssssestessssosssessssssssssessesssssessssssssessassssvtessssssaveesssssenesssssnaveceen (6) where, Vier: Current limiter reference voltage HITACHI Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415} 589-8300 177HA13501S 4, The integra! constant can be designed as follows: 2nD No P DM TO xX 60 xX Di creseseeeesseeeenceesnasetensseesensoensenanessseeenseserassnaeennensaens se (7) ae = x yee sssssvasanesassivasessnesesesecesescansnsestsasasesasareesseseseee @) Py S25 Koc ccc cecessscessassessssucsesscescrssssesstesssasenssnessansseseseseeseaseesseseressseneeneanes @} Cy = AA (N/10 09 Ro) [F] cooseecessssececsssscecnssnesecsssnseasssssesessnscssssavecesssersssssessesneces (10) Cop = 10 Cy [F) ccccesccccceccsccccseessssesenensvssatineesesssaavensessaseessessarseessescescsneareseseeeneeaees (11) where, Gott! gain from pin 13 to pin 16 (see electrical characteristics) Some motors require these components, 6. The OSC frequency fosc is determined by the following equation: fOSC = 555.6 No POD ecccccccccecsssesesssssseesssusssssecsessevessssveesvasssessesresvesvee (42) where, N, : Standard rotation speed (rpm) D_: Dividing ratio on divider D = 1/6 @ Pin 10 = Low) D = 1/4 @ Pin 10 = High) In order to minimize the error of rotation speed, select the dividing ratio m as follows: at 8 pole motor = D= 1/4 at 12 pole motor > D = 1/6 Timing Chart Start-up oft a Synchronous running le Normal running HITACHI 178 Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300HA13501$S Running Voltage Back-EMF Neutral U ~~ --~ point 0 Vv 0 Ww 0 Current Source + U 0 Sink - Vv WwW 0 HITACHI Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300 179HA13501S Absolute Maximum Ratings (Ta = 25C) Item Symbol Rating Unit Notes Power supply voltage Vee 7.0 Vv 1 Input voltage VIN Veco Vv 2 Output current lo 1.2 A 3 Power dissipation Pr 2.0 Ww 4 Junction temperature Tj +150 C 5 Storage temperature Tstg -55 to +125 C The absolute maximum ratings are limiting values, to be applied individually, beyond which the device may be permanently damaged. Functional operation under any of these conditions ie not guaranteed, Exposing a circuit to its sbeclute maximum rating for extended periods of time may affect the device's reliability, Notes: 1. Operating voltage range is 4.25 V to 5.75 V. 2. Applied to CE, MTRON, DSEL 1 and VCOIN inputs. 3. Operating locus must be within the ASO. ASO, of upper and lower power transistors are shown figure 1 in references. 4, Value at Te = 136C Thermal resistance is shown below. 8-6 S 7CM, 8 - a1 S 15C/W (using Fe board}, 8, aa s 62C/W (using glass epoxy board} 5. Operating junction temperature is Tip, = OC to +125C. Electrical Characteristics (Ta = 25C, Vcc = 5.0 V) Appli- cable Block Item Symbol Min Typ Max Unit Testconditions Terminal Notes Total Quiescent current lect 10 15 mA Pin8=0V 15 loco _ _ 2.0 Pin8=5.0V CE Input low voltage Vit 1.5 V 8,9,10 MTRON Input high voltage Vint 3.5 _ _ DSEL Input low current lit +10 pA Pin 8 10=0V Input high current li +10 Pin 8, 10=5.0V Output amp. Leak current Iceat 1.0 mA = Vep=7V 18,1921 Saturation voltage Veatt 2 _ 0.8 V Ipo=0.1A 1 Veag 2 _ 15 fg= O 8A Curren ref. voltage Viet 225 250 275 mV Rye = 1.02 16 2 limiter VCO Input current fin 200 nA Pind =0V 4 OSC frequency fyco1 90 110 130 Hz Pin4 Rey 1 =OV = 68kQ OSC frequency fveo2 $Y 11 13 Hz Pin4 Cy 1 =2.5V =0.1 pF V/F conversion gain Gyr _- 0.45 _ WwW 1 3 VCO Sink current lts 10 _ pA Rig = 130 kQ 3 input Source current le 1 _ Pin3 =2.0V control Set up voltage Varo 1.1 1.3 1.5 Vv Rig = 130 K2 2 Threshold voltage Vth 2.2 2.5 2.8 Vv 3 4 Zero xX Min. input sensitivity Vmin2 80 _ _ mVp.p Pin22=1.5V 21,19,18 comparator Control amp Gain Get 0 _- dB 13,16 Internal reference Veto 1.15 1,25 1.35 Vv Oscillator frequency error ferr _ _ +0.1 % X'tal 5,6 Speed Operating frequency fose _ _ 8 MHz 5,6 5 diseri Count number N 2084 @ HITACHI 180 Hitachi America, Ltd. Hitachi Plaza * 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300HA13501S Electrical Characteristics (Ta = 25C, Vcc = 12 V) (Contd.) Appli- cable Block Item Symbol Min Typ Max Unit Testconditions Terminal Note Charge Ki set-up voltage V 1.13 1.25 1.39 Vv Ry = 8.2 kQ2 14 pump Charge current low 125 150 175 uA Ry =82kO 13 Pin 13=1.0V Discharge current lois -125 -150 ~175 Leak current Icerng 150 nA Current ratio leat 0.9 1.0 141 _ trat = Icx/lpis Sync running Output high voitage Vont Vee -04 _ V Ip =-1.0 mA 11 monitor Output low voltage Vor _ 04 ig= 10mA Ready Output high voltage Vouo Vec-04 _ V ip =-1.0 mA 12 6 Cutput low voltage Vo2 40 In = 1.0 mA LVI Recovery voltage Vive 8.0 V OSTSD Operating temperature Tiso 125 150 C 5 Hysteresis temperature Thys 25 _ Notes: 1. Sum of upper and lower saturation voltage. 2. The reference voltage V,ei2 is measured from pin 15 to pin 16. 3. See figure 3 in references. 4, See timing chart. 5. Design guide only 6. Ready output becomes high while the rotation speed error is smaller than 1%. References 1.5 _ 1.0 x 2 T.B.D. 0.5 0 2 4 6 8 Voce ) Figure 1 ASO Output Stages HITACHI! Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300 181HA13501S 2.0 1.5 1.0 Vsat 0.5 T.B.D. 0.2 0.4 0.6 0.8 1.0 1.2 Figure 2 Saturation Voltage of Output Stages (fvcol) 1.0 0.8 \ (design value) 0.6 0.4 fyco/f vcol 0.2 Normalized OSC frequency Fyco 01 7 -------4-------- {fvco2) 1.0 2.0 3.0 4.0 Vpina (V) 182 Figure 3 VCO Characteristics HITACHI Hitachi America, Ltd. Hitachi Plaza 2000 Sierra Point Pkwy. Brisbane, CA 94005-1819 (415) 589-8300