TA8499F | DigiCamel IC Datasheet

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TA8499F TOSHIBA | Alldatasheet

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TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI-CHIP 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD/ DVD-ROM DRIVES This 3-phase, full-wave, brushless DC motor driver IC has been developed for use in CD/DVD-ROM drive spindle motors. The TA8499F contains in its upper stage a discrete power transistor (P-ch-MOS) and uses direct PWM control system, which enables the IC to provide superior thermal _ efficiency. eee a) nl Furthermore, the multi-chip structure of this device ess facilitates dispersion of the heat generated inside the package, making it possible to suppress heat concentration. SSOP30-P-375-1.00 Weight : 0.63 g (Typ.)

FEATURES

@ Multi-chip structure (3 25J465 chips built-in) @ Direct PWM control system © Built-in current limiter : Ij = 0.8A (typ.) (at RF = 0.33 0) @ Built-in reversing brake /short brake functions @ FG signal output (using hall element output signal) @ Built-in hall bias @ Built-in thermal shutdown circuit @ Package : MFP-30 1 2001-06-19

a la@ Lp (G) L(G) a CQ vec Q Q @ vn =m ‘apgrapPn Bo ener pa {2). alli | ee ce Seat Pay Ee ct [s => Es [25) co C9} ne CRE v a PWM Signal [> on @osc OC ORE cq — az I Sa 9 pin, 26 pin : N.C. KZ 9007-06-19

b-phase upper side power transistor a-phase upper side power transistor |? | 0 [esau eemna nn (eeeponen | [3 [ta a-phase output terminal (Connect tothe co ——SSOSCS~* [4 [Viva [Supply voltage terminal for moter drive |Connect to Vwi externally | Sets limiter current value. Pf pens SSE between this terminal and GND. FO [8 |e _oupurcarene er semnat emma anscn | a OC Outputs a signal whose frequency is FG amplifier output terminal determined by the CD rotation a ee [17 BRK [Brake mode select terminal [Output mode when Ve>Vef | terminal terminal. terminal terminal. ee a terminal terminal. terminal terminal. a c terminal terminal. terminal terminal. Open collector output. Connect to HB Hall element bias terminal the negative side of hall element a ee ce adjustment terminal changeover gain 3 2001-06-19

TERMINAL} TERMINAL SYMBOL FUNCTION REMARKS. Control amplifier input terminal Use the control signal as input. 22 v, Control amplifier reference voltage input] Use the reference voltage for the ref terminal control amplifier as input. 23 osc Triangular wave oscillation terminal Connect 2 capacitor between this terminal and GND. eS Sets limiter current value.

25 Rr2 Output current detection terminal Connect to RF1 externally and

between this terminal and GND. [26 keep open id c-phase upper side power transistor 27 Le(@) (base) output terminal Keep open. e-phase output termina Supply voltage terminal for motor drive |Connect to Viy2 externally. b-phase output terminal Connect to the coil. ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) CHARACTERISTIC SYMBOL RATING UNIT rower Supa Volase [yi Tg] | Output Current | to fs A Hall Bias Terminal Input earene |e | | | Pp Wore 1 Operating Temperature =20~75 Storage Temperature =55~150 (Note 1) : unmounted OPERATING VOLTAGE RANGE OPERATING CHARACTERISTIC SYMBOL RANGE UNIT power sup Vol 45-55 |, owe eet [vw | 8~14 | 4 2001-06-19

ELECTRICAL CHARACTERISTICS (Vcc = 5V, Vy = 12V, Ta = 25°C) TEST CHARACTERISTIC SYMBOL TEST CONDITION fm | ave. [a UNIT CUIT supply current Stop mode [= [93,08] Icc2 Run mode, output open [— [7[ 15] lH Ver = 259, (Sink current) | — | — | 7] pa | Common Mode Hall Amp. | Input Voltage VCMRH 1.5 Vv Range saree [wwe T= | ol ol Common Mode Input Voltage VcMRC 0.5 Vv Range 2 Vo = Vref = 1.65V, Control Input Current linc (Source current) 5.0] HA Amp. Dead Zone VREF = 1.65V, Rp = 0.33.0 Voltage Width Voz | - | (Note) mv Forward mode, Vref = 1.65 V, AV 2 1 Input Offset OFF (F) Rp = 0.330 ° °° mv Voltage AN, Reversing brake mode, 150 OFF (R) Vref = 1.65V, Rp = 0.330 iM Rp = 0330 (ote D] — | 800] — | mA | current | imit current [YuMin)| _ [Forward mode __—_—_—‘| 03] o.35| oa Limit Amp. Reversing brake mode Vv Vim (R) (Note 2)| 013] 9-2) 9.27 RUN/ | Input Voltage (H) | Vins (H (RUN) | 3.0] — [vec] , STOP Input Voltage (L) | Vins (L} (STOP) [end [ — [ 1.0] I as wat | pase cortonnann |= [=| alm Output Resistance _ Saturation Voltage| Circuit | Cut-off Current (Upper Side) hay |. [ve tev |-|-| » A Cut-off Current (Note 1) : This is not tested. (Note 2) : VLIM (R) < VLIM (F) 5 2001-06-19

[Sd FORWARD —dSSSSC=*REVERSE iY PoHa THe Te ta tt tt a POR fT aw Poe Rm fe a a a a <Forward> <Reverse > La = -(H¢-Ha) La = (He-Ha) Lp = -(Hg-Hp) Lp = (Ha-Hb) Le = -(Hb - He) be = (Hb - Ho) TIMING DIAGRAM <Forward> Ko fe Ke KX XX XX XD nv“ | | i | Gno + + + 7 2001-06-19

This IC is a 3-phase, full wave brushless DC motor driver of the direct PWM control type. @ Control amp input circuit Vec The common mode input voltage ranges for both Vc and Vref are 0.5 to 4.0V. Relation between control input and PWM ON duty is shown below, PWM ON duty is 100% when |Vref-Vc| = 0.75 V (Typ.) The input is provided with a dead-zone area whose voltage width is 100 mV (typ.) g 100} > ! \\ vead-zone 3 1 1 voltage width / 1 3 t t \\ioomv crypt 6 1 i \\e ft Pa 1 1 Hn i 2 too ‘| ' i t i 05 Vref-0.75 Vref Vref +0.75 Ve) © Short brake circuit 8 2001-06-19

When Vc > Vref, one of two modes (Reversing Brake or Short Brake mode) can be selected by setting the MS and BRK pins appropriately. <Function> ss Ve < Viet Vc > Vret Short brake Reversing brake In Short Brake mode, the upper-stage power transistor is turned on and the lower-stage power transistor is turned off. (Short brake) BRK : H Ve i i Forward mode SCV", Forward mode mode (Reversing brake) @® When stopping the motor by applying a reversing brake after a short brake 4 eeeen en eeeen nee BRK L es Hi Ve a H 1 H i Forward mode Short Reversing Stopped Brake Brake mode mode 9 2001-06-19

@ When stopping the motor using Reversing Brake mode BRK: L Ve i Hl a Forward mode Reversing Stopped Brake mode (*) For an explanation of the Reversing Brake mode stopping sequence, refer to the explanation of the reverse rotation detection circuit. The short brake generates less heat than the reversing brake. Therefore Toshiba recommends a combined use of the short and reversing brakes when stopping the motor. @ Run/stop control circuit When the driver IC is standing by, all of its circuits except the FG amp and the hall amp are turned off. H_: start L : standby @ Hall amp circuit The common mode input voltage range for VcmRH is 1.5 to 4.0V. 10 2001-06-19

© Hall element bias circuit of The hall element bias current is turned off when the driver IC is in standby state. Make sure that the negative hall bias line is connected to the HB pin. The remaining voltage is as follows : Vue = 1.3 [V] (typ.) at IyB = 20mA HB must be set less than 20 mA. @ FG amp circuit uP This circuit uses a hall element signal which is output to FGO after a Schmitt stage. The FG amp has a hysteresis of 20 [MVp-p] (typ.) and its output voltages are High level : Vcc -0.5~Vcc [V] Low level : GND~0.5 [V] at lofrg = 10 “A The FG amp is active when it is in standby state. When the hall element signal is input, the FG signal is output. 11 2001-06-19

© Reverse rotation detection circuit By comparing the two phases of the Hall element signal, this circuit detects a state where the phases are inverted, at which time the torque is reduced to 0. The detection accuracy is determined by the number of pulses per rotation of Hall element output. Hall element signal | J | f (Phase b) ' J 1 I L H Hall element signal I t (Phase a) T n i i o i 1 Ve ' it | Forward rotation tt Direction of rotation + ' (Note) ' I Reverse | le stopped Rotating torque Forward torque! _——— i ' Reverse torque (Note) : Due to its inertial force, the motor does not stop immediately after the torque is reduced to 0. 12 2001-06-19

@ Output circuit Vec la Bh “ Re (Upper stage) (Lower stage) This circuit uses the system to chop the lower power transistors and resurrect coil current through upper stage diodes. The upper-stage power transistors consists of Pch-MOS transistors (28/465), which give high torque efficiency. vm 4! je (Coil current) —> Lower Pw Tr. : ON CILIL sewn = 204100404 Lower Pw Tr. : OFF Re vm Via OG Lower-stage predrivers are supplied by Vcc to reduce the power dissipation. @ Triangular wave oscillator circuit Triangular waves are generated by connecting a capacitor between the OSC pin and GND. This circuit is current output type, which makes PWM signal by comparing its output current with control amp output current. 50x 10° [A] osclHal = Soon MxciAl WAAAY . +--¥---4--- ~~. oy Taking into account efficiency considerations and the effects of noise, Toshiba recommends using the IC with an oscillation frequency of 20 kHz~100 kHz. 13 2001-06-19

© Current limiter circuit The current limit value is determined by the equation below. . 0.35 . ‘Lim (F) = Ryoa [A] (Typ.), ILM (R) = !Li (F) x 0-6 [A] (Typ.) This circuit cut off lower power transistors compulsorily when filtered VpF is more than reference voltage. (0.3 V) PWM signal cut off compulsorily is released from OFF state by next ON signal. Over current detection term aR Limiter amp. output ee | mi T PWM signal Hi se ee fot ot tiem tt foro di™tp ort [ee ee ON (*1) Keep “H” level in this term Consider inside resistance (5kQ) when setting the capacitance value (Cpr). ska [tin Limiter amp circuit I" Re @ Thermal shut down circuit The circuit turns off output when Tj = 175°C (Typ.) (according to design specification) 14 2001-06-19

TERMINAL FUNCTION RECOMMENDED VALUE | REMARKS. Power supply line oscillation prevention 0.22 uF [| —- | Power supply line noise prevention 100 pF~ 1000 pF (Note 1) Power supply line noise prevention 10 uF~100 uF (Note 1) 7000 pF=2200pF |_| Forward /reverse changeover gain 01 uF Ni 2 Cs adjustment 0.01 4 (Note 2) Triangular wave oscillation 220 pF~ 1000 pF [ -— Hall element bias | Wt 3) | _R2 [Control amp reference voltage ee ee) [“R3[Output current detection | ovsQ-0sa0 | — ~—_| (Note 1) : Absorb switching noise by C2 and C3. (Note 2) : This is used to adjust the rotation direction changeover gain. This capacitance valve and the gain are in inverse. This capacitance is to prevent from output through current. (Note 3) : Be sure to set this bias so that the hall element output amplitude and common mode input voltage fall within the ranges specified in the table of electrical characteristic. (Note 4) : The voltage must be set to fall within the common mode input voltage range of the control amp. 15 2001-06-19

oy La(@) Lp) L(G) « S-GND_QQ) Vcc Q) (0) @ Vn ree) fg eee ree ere ae TPS iecpeepeestinapersan mete |e] jy) Ceca ca eee L4 =] tee 7 7 [te [3). CH | PB ed g ee He- lan Ce] <55 Ee eS ouw ag {25> E>" cto . Foo @ P-GND HB g “ RF Control __R2_ Ve a PWM signal > 3 signal “ Sd re S-GND SB @osc ark Q) @) @) De, peeeens cf GND} PS Gno2 - H H oF i it S-GND S-GND sen 281065 x 3 (Note) : Utmost care is necessary in the design of the output line, Vcc, Vm and GND line since IC may be destroyed due to short-circuit between outputs, air contamination fault, or fault by improper grounding. 16 2001-06-19

lect. Icc2. VINS (H)» VINS (L). TINS: Ret vesviesv 3 ° Tis fe Lb Vimt be be(G) NC. Rez GND1 OSC Vref Vo Vcc Cg HB He He* TA8499F Lb (G) La(G) La Vm2 $8 Rey GND2 Crp N.C. FGO BRK Hb” Hb* Ha” Ha” OCR OR OCRORCROROROR CROC REMC) ® 38 I o| 8 VsB e lcci : Vsp =0.5V e Icc2 : Vsp = 3.0V © VINS(H)- VINS(L) : Judge by the gap between Iccy and Icc2 e lins : Vins = 0V 200-0619

TINH: ICMRH: VHB linc, VCMRC Rey ioe By if Vie & £ Us a © RE CY © @A@AMDB®AAQOOWOAD® lb VM1 le be (G) NC. Rez GND1 OSC Vref Ve Vec Cg HB He He* TA8499F Lb (G) La(G) La V2 $8 Re1 GND2 Cpr N.C. FGO BRK Hb Hb* Ha Ha* VOUVDYVYUAYUYIUIYVYVYYDY Y

8 I ® Onn

e lINH : Total of a phase negative and positive input current. Via = VHb = VHc = 2.5V © VcmRH : Measure the liyH gap between Vyaq = 1.5V and Vya = 4.0V. b and c phase are measured the same method. e VuB : IHB = 20mA e VINC : Total of Vc and Vref input current. At VcmrRc = 1.65V. e Vcmrc : Measure the linc gap between Vcmrc = 0.5V and Vcmrc = 3.6V. 18 2001-06-19

AVOFF (F): AVOFF (R)- VLIM (F)- VLIM (R) 12V ? Re 165V ve SY may + | [df B i A SDddDDZaaHROHHHAaDSH lp Vim1 Le L¢(G) N.C. Rez GND1 OSC Vref Vo Voc Cd HB He He* TA8499F Lp (G) La(G) La Viz $8 Re1 GND2 Cer N.C. FGO BRK Hb” Hb’ Ha” Ha® COPVPP EV PSCSOVP YP EY +8 +4 [| EBel fe 1000pF | 8V Vere 25v ¢ AVoFF(F) : Measure Vpf at Vc = 1.63V/1.5V. ¢ AVOFF(R) : Measure Ver at Vc = 1.67V/1.8V. © VLIM (F) : Switch the Vcrf from OV to 0.4V at Vc = 0.5V. Measure the Vcrf at the point when output voltage level changes from low (L) to high (H) © VLIM(R) : Switch the VcrF from OV to 0.4V at Vc = 4V. Measure the Vcpf at the point when output voltage level changes from low (L) to high (H) 19 2001-06-19

RON (U): Vsat (L) Vv Ret resvosv oY Vac+ ° sf & ig Fe A 7S padded lb Vim1 be Le(G) N.C. Rp2 GND1 OSC Vref Vo Vcc Cg HB He He* TA8499F L(G) La(G) Le Vm2 SB Rey GND2 Cpr N.C. FGO BRK Hp” Hb’ Ha” Ha* COP OV EVESTOVE Ve < Re 2005 5V Vib” Via” 25v ¢ RON(U) : Determined output function by VHa*, VHb*, VHc* (2.45 V/2.55 V). Measure voltage value between Vjy and La, and change to resistance valve. b phase and c phase are measured the same method. © Vsat(L) : Determined output function by Vya*, VHb*, VHc* (2.45 V/2.55 V). Measure voltage value between La and GND. b phase and c phase are measured the same method. 20 2001-06-19

IL(U) IL) Py sy Ret O & TIS Js G)_@) G) GP GA) @) @) @) G) CG) G) 6) 6) 6) Co Ly Vt le be(G) NC Rez GNDI OSC Vref Veo Vec Cd HB He” He* TA8499F Lb(G) La(G) La V2 $8 Rey GND2 Crp N.C. FGO BRK Hb” Hp” Ha” Ha* ORO OR ORORCHORORORCRORC Re RC RE) © IL(U) : Measure Ij when La and GND are shorted. b phase and c phase are measured the same method. © IL(L) : Measure Ij when Vy and La are shorted. b phase and c phase are measured the same method. 21 2001-06-19

VBRK(H)- VBRK (L): INBRK e Ret 165V av OY ge Vite 7F. oat bad! Ly V1 te be(G) NC. Rez GNDI OSC Veet Ve Vec Cg HB He” Het TA8499F Lb (G) La(G) La V2 $8 Re1 GND2 Cre N.C. FGO BRK Hp Hb* Ha Ha* COUP PEP VCeVVr? ee % ® 5V VsB “He “He 25V © VBRK(H): VBRK = 3.0V, verify that La = Lp =Le: H © VBRK(L) : VBRK = 9.5V, verify that output function is reverse brake mode. 22 2001-06-19

VOFG (H). VOFG (L) ° Ble Is Lb VM1 le be(G) NC. Rez GND1 OSC Vref Vo Vcc Cd HB He” He* TA8499F L(G) La(G) La_Vm2_SB__Rey GND2 Cpr N.C. FGO BRK Hb” Hb’ Ha” Ha® OROR OR CRON OCROROROR ORO CRORE) 5Vv $d 25V Vib © VoFG(H): VHb* = 2-53V, IFGO = 10 ZA (source) © VoFG(L): VHb* = 2.47V, IrGo = 10 ZA (sink) 8. Vuys SV

3 NTS

° ale je G)_@) C8) GP CG) @) @) @) G) GC) CG) G) 6) CD CO lb Vm1 be Le(G) NC. Rez GND1 OSC Vref Vo Vcc Cg HB He He* TA8499F L(G) La(G) La Viz SB Ry GND2 Crp N.C. FGO BRK HbR” Hb* Ha~ Ha* ORO ROR ORO OROROROM ORONO E RCM) 5Vv 2.5V Vub* ° Vuys : Switch the Yap" from high (H) to low (L) and from (L) to (H). Measure the Vyp* at the point when FGO function changes. 23 2001-06-19

SSOP30-P-375-1.00 Unit : mm 30 16 Hoogggggnogngag q HOO OOOO Oo (Cc al 8 iy g| & & “| s 5 MOOMMOOHHOooon ce HOOWMOoOCoOoooooo i iH 15 15.9MAX 15.440.2 nN | 5, «8 ee d 2 $? WUTTUUT OED S « a 8 . “ 0.92+0.2 Oo Weight : 0.63 g (Typ.) TG 2007-06-19

RESTRICTIONS ON PRODUCT USE 00070768 @ TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products 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 TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability Handbook” etc.. @ The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. @ The products described in this document are subject to the foreign exchange and foreign trade laws. @ The information contained herein is presented only as a guide for the applications of our products. No responsibility 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. @ The information contained herein is subject to change without notice. 25 2001-06-19

Product Information

TA8499F specifications and overview.

Summary

3 PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD/DVD ROM DRIVES

Description

3 PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD/DVD ROM DRIVES

Source title TA8499F Datasheet(PDF) - Toshiba Semiconductor

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