TA7712P TOSHIBA | Alldatasheet

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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA7712P, TA7712F FEATURES TA7712P © FG is not required. _ (System for obtaining rotation signal through position a > sensing) — 1 © Start/stop, CW/CCW and brake functions are provided. iy eH _ VN @ Gain of position sensing circuit is high, and hysteresis is \\ " v provided. @ Rotation signal output is provided. (Frequency signal of DIP20-P-300-2.54A three times the position sensing output (hall sensor TA7712F output) can be obtained.) @ External transistor type. NO a SSOP24-P-300-1.00 Weight DIP20-P-300-2.54A : 2.25g (Typ.) 980910EBA2 ©@ TOSHIBA is continually working to improve the quality and the reliability of its products, Nevertheless, semiconductor devices in general can malfunction or fall due to thei inherent electrical sensitivity and, vulnerability to physical stres. itis the responsibilty of the buyer, when utlizing TOSHIBA products, to observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product could cause loss of human life, bodily injury or damage to property. In developing. your, designs, please ensure that TOSHIBA. products are, used within specified Operating ranges as set forth in the most recent products specifications. Also, please keep in mind the precautions and conditions set forth in the TOSHIBA Semiconductor Reliability Handbook. @ The products described in this document are subject to the foreign exchange and foreign trade laws. © ‘he information contained herein is presented only as a guide for the applications, of our products. No_ responsibilty is assumed by, TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others e The information contained herein is subject to change without notice. 1999-03-11 1/14

©) Qe? FG 7 ye | 1] 2 o | eR Ha [- | ub [- +] He isror [gow [BRAKE GIOGTIAI IC) 9999-03-11 2714

1a asphase upper dive output emma [2 [2 [ta [ecphese ower drive-output terminal [3 [3 | 1b>[E-phase-upper drive output terminal [a [5 | 1b=bsphase lower drive output terminal] [se [te Yphase upper dive output terminal] [6 _[-7_[ “1 erphase lower dive output terminal P78 [en en terminal [3 [10 [START STOP |START/STOP switch terminal [3 [GW cw [Forward rotation Reverse rotation-swich tenninal | [ao [72[— BRAKE [Break terminal Par [ 3 [—Fegyt Fe signal output temninal Pa [ tg eR connection terminal pas [Non- connection Pa [a7_[ He Jephase Wall Amp. negative] [is_[ 18 [He [ephase Wall Amp- postive input tenninal | [ie 79| Hb E-phase Hall Amp negative input terminal] [ia[-22 [Ha a-phase Hall Amp. negative input terminal] [13_[-23[—Wa*[a-phase Hall Amp. positive input terminal] F: @, ©, ©, ©, @pin : non connection 9999-03-11 8/14

Forward rotation (Position sensing signal advances Ha > Hb > Hc.) ome Her a Reverse rotation (Position sensing signal advances Ha —> Hc > Hb.) een a 9999-03-11 4714

APPLICATION OF TA7712P, TA7712F. Like a video disk player, TA7712P, TA7712F is provided with the stopping function which in a short time, stops the motor having a large inertia, and makes the quick disk-change possible. To make the frequency generator (FG) unnecessary which was formerly required for fetching the rotation signal, the signal from the position sensing input is ORed and is output to FG output pin (pin @/®). Therefore, for FG output, three position sensing outputs (Ha, Hb, Hc) are ORed, and the rotation speed signal of the frequency of six times that of one output can be fetched resulting in making it possible to obtain a sufficient controlling characteristic with the F/V (Frequency-Voltage) conversion method of mono-stable type. The difference from TA7713P is that the stop function is automated in TA7713P, however, it is operated by the external signal in TA7712P. Description is made on the application of TA7713P in the following. (1) Operation of FG output (pin @/43) and Trg (pin @/@) In Fig.1, Q1 and Q2 are the monostable multi-vibrator to which gate (Q2 base) the signal from each position sensing input of Ha, Hb and Hc is input after ORed and shaped in waveform by FF. The pulse width of MMV made by Q1 and Q2 is determined by R2 and C2 to be connected to Trg (pin @/@®), and the square wave having the pulse width to be determined by C2 and R2 is output. Of course, this frequency is proportional to the rotation signal and this frequency is six times the frequency of each position sensing. (6 per 1 electrical rotation) F/V conversion operation is made through connecting FGg output to LPF for integration. However, if R2 is made variable, the conversion gain can be controlled. + - + C+ - eT Tal Te] =p P33 PL Ha + Hb + He ' e T a qi base s FGour ° Fig.1 1999-03-11 5/14

(2) Each control input Voc (210) stA8T SOP Gyre (ony eae At H, start. At H, normal torque. At L, BRAKE At L, reverse torque. Fig.2 START / STOP cw/ccw BRAKE OUTPUT [a |__| Normal torque mode [Fevers torque mode | BRAKE mode [tort |__| ST oP mode (Note) In STOP mode, Outputs of Lat~Lc+ and La~~Lc~ are all made OFF. In BRAKE mode, outputs of Lat*~Lc* are made ON. (source mode) (3) Output circuit As shown in the block diagram, in the output circuit, the Darlington emitters of PNP and NPN are provided on the upper side, and the lower side is made as the open collector of NPN. Connect the external transistor in the same manner as that of the application circuit. 1999-03-11 6/14

MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING Power Supply Voltage [vec | 18 | v_| Position Sensing Circuit Input Voltage (Tj = 25°C) VH 500 mVpp Power Dissipation |TA8412P (Ta = 25°C) Po (Note) os | Operating Temperature Storage Temperature —55~125 (Note) No Heat Sink ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Vec = 5V, Ta = 25°C) TEST] CHARACTERISTIC SYMBOL TEST CONDITION fm. | ve. max UNIT CUIT Operating Supply Voltage [Vecioon | — | S—S—S—~S SP 58 | 5S | VY Power Supply Current ' Joutput open | — | 17.0 | 260 | '™A Upper side [saTiu-n] [RL = 200.9 [— [13 20] saturation Voltage Rp =2ko [=f 73] lower Side RL = 2000 [— | 03 [12] [Vsarii2y| [Rp = 2k [— [ors [0.4] Teak cuvemt [Upper Side Tay | [— [= [100], [== 100] _“ ces Common Mode Sensing [input Sensitivity [20 | = inp | pu Input Hysteresis eS ee start | InPut Operating ert wan [2 ao Ty ar aun) Yottage i vine 12] | — ‘| — | 10] CW/CCW input Operating [TTC oP — PT input _| Voltage ee (FWD/REV) [Input Current_|"L" | we | |Vinc=10v | — | — | 200] pa | BRAKE | Input Operating [SSC of — Ty input _| Voltage Vine) | 2 [| — | — | 10] FG Output [Output Voltage |"L" | Veg. | 3 [pg=03mA | — | — | oa] v_| Pulse Width Cg 13 [c= 01pF, R= ioKO] o9[ 10, 11] ms | 1999-03-11 7/14

® +5V 45V ° | [i [} [t 88 | g g g . ye Faamaanc {SS «ely OPEN i i | 3 g a Reverse sensing must not be made. 1999-03-11 8/14

+5V +5V +5V 0B ke s s s " |o x TP S@Q@OCOEEG) ©3969 sai awe. input Check input sensitivity and TA7712P/F input hysteresis with +20mV by means of confirming that leak current and saturation Cr) (2) (a) (es) (58) («7) (>a) (es) @) (ox) voltage described below can be measured. © © © 24 3 Fe val a CTO) ORONO) ¢ @ * E +5 +5V +5V INPUT CONDITION MEASUREMENT ITEM BRAKE 2asv252v[248v; — | — | — | sat [teak]; — | sat [teak] — | LEAK : Measurement of leak current SAT : Measurement of saturation voltage Confirm "L” of each Vin R, VIN ¢ and Vin g through reading the output voltage when each terminal is set at 1.0 (V). 1999-03-11 9/14

+5V +5V +5 s S ©z Qe Oz 2 a Swe 8 @ Measure IFGH with the Gn) (22) (2) (5) (58) (7) (=) () (1) (on) voltage when SW2 is set at b. @ Measure Veg, and tFg when © > > > SW2 is set at a. g T° Te I $ +5V +5V +5V TIME CHART FOR FORWARD ROTATION N Net | 1 2 3 4 5 6 | Ha 7 77 248 Hb | + 2.48 : 252V He i | | t worenno-----= 248V CLOCK 360 Hz 1999-03-11 10/14

‘I et i Let ik ott rel [at ar. a 0 GO Nt =” SSesias 6 Eas ' 7999-03-11 11/14

Vee = 5V She @y [2—O vy = 10~60v

7 Gs) _@) q

@ TA7712P/F (22) staat ist0R coven @ (es) q POCOOOEIY ay L] LI LF tustosa x3 Ha Hb He Pp - Ta CCT QTA7712F o N - ot tN TT 3 os IN EL TIN TTT Ce § wotNe | < ee Lit | | pss, | 0 70 0 720 760 AMBIENT TEMPERATURE Ta (°C) 1999-03-11 12/14

DIP20-P-300-2.54A Unit : mm a meoeooos 3 3 5 25.1MAX Q.95+0.1 eg MU sh /__'2. 3 ro) Weight : 2.25g (Typ.) 1999-03-11 13/14

SSOP24-P-300-1.00 Unit : mm 24 13, NOHAnARAAAAAAAaAYA 2 HARRARAAAARG ay 8 al] = ro] 2 HAH EAAAHHHAG S 1 12 13,5MAX 13.040.2 ~ -8 x $9 = NL o try cas 0.525+0.2 oO Weight : 0.32 g (Typ.) 1999-03-11 14/14