rev.1.0, sep.16.2003, page 1 of 21 M63028/029fp spindle motor and 5ch actuator driver rej03f0024-0100z rev.1.0 sep.16.2003 features this ic is 1 chip driver ic for spindle motor and 5 channel actuators. all of the motor and actuator of optical disk drive system (cd- rom etc.) can be drived by only this ic. this ic has a direct pwm control system for spindle and slide channels drive due to reducing ic power dissipation. this ic has four voltage supply terminals (for spindle, slide,focus/tracking and loading), and four voltage supply can be set separately. further more this ic has short braking select function, fg amplifier, thermal shut down circuit, standby circuit, reverse rotation detect circuit. pin configuration pin configuration (top view) package outline : 42 pin power ssop (42p9r-k) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 m63 028/029 fp 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 22 23 24 sl1in sl2in vm2 rsl2 sl2+ sl2- gnd rsl1 sl1+ sl1- gnd w v u rsp hw- hw+ hv- hv+ hu- hu+ osc 5vcc mu1 vm3 loin+ fo- fo+ to+ to- gnd lo- lo+ hb gnd foin toin spin ref fg mu2 vm1 application cd- rom, cd- r/rw, dvd, dvd- rom, dvd- ram, optical disc related system, etc
M63028/029fp rev.1.0, sep.16.2003, page 2 of 21 block diagram fg reverse detect 120? matrix ctl amp. current comp. direction comp. ctl amp. current comp. direction comp. logic bias tsd fg hu+ hu- hv+ hv- hw+ hw- ref spin sl1in toin foin to+ to- rsp u v w vm2 rsl1 sl1+ sl1- vm1 ss s osc frequency generator vm1 fo+ fo- gnd regulator reg logic rsl2 sl2+ sl2- s current comp. direction comp. sl2in lo+ lo- loin+ x8 5vcc 5v power supply ctl amp. vm3 hall bias brake select M63028fp:fg x 3 m63029fp:fg x 1 x12 x12 mu1 mu2
M63028/029fp rev.1.0, sep.16.2003, page 3 of 21 pin function terminal symbol terminal function terminal symbol terminal function 1 sl1in slide control voltage input 1 42 osc pwm carrier oscilation set 2 sl2in slide control voltage input 2 41 mu1 mute/break select terminal 1 3 vm2 motor power supply 2 (for slide) 40 lo n+ loading control input (+) 4 rsl2 slide current sense 2 39 vm3 power supply3(for loading) 5 sl2+ slide non-inverted output 2 38 mu2 mute/break select terminal 2 6 sl2? slide inverted output 2 37 lo? loading inverted output 7 gnd gnd 36 lo+ loading non-inverted output 8 rsl1 slide current sense 1 35 fo? focus inverted output 9 sl1+ slide non-inverted output 1 34 fo+ focus non-inverted output 10 sl1? slide inverted output 1 33 gnd gnd 11 gnd gnd 32 5vcc 5v power supply (for fs, ts) 12 w motor drive output w 31 to+ tracking non-inverted output 13 v motor drive output v 30 to? tracking inverted output 14 u motor drive output u 29 gnd gnd 15 rsp spindle current sense 28 to n tracking control voltage input 16 hw? hw? sensor amp.input 27 fo n focus control voltage input 17 hw+ hw+ sensor amp.input 26 sp n spindle control voltage input 18 hv? hv? sensor amp. input 25 ref reference voltage input 19 hv+ hv+ sensor amp. input 24 fg frequency generator output 20 hu? hu? sensor amp. input 23 hb bias for hall sensor 21 hu+ hu+ sensor amp. input 22 vm1 motor power supply 1 (for spindle) function fo, to gain lo gain fg pulse M63028fp 12v/v 8v/v 3 m63029fp 12v/v 8v/v 1
M63028/029fp rev.1.0, sep.16.2003, page 4 of 21 absolute maximum rating (ta=25c) symbol parameter conditions rating unit 5vcc 5v power supply focus and tracking power supply 7 v vm1 motor power supply 1 * note1 spindle power supply * note1 15 v vm2 motor power supply 2 slide power supply 15 v vm3 motor power supply 3 loading power supply 15 v ioa motor output current a focus, tracking and loading output current * note1 1.0 a iob motor output current b spindle output current * note1 1.5 a ioc motor output current c slide output current * note1 0.5 a vin maximum input voltage of terminals mu1, hw-, hw+, hv-, hv+, hu-, hu+, ref, spin, mu2, toin, foin, osc, sl1in, sl2in, loin+ 0 to 5vcc v pt power dissipation 70mm x 70mm x 1.6mm free air and on the grass epoxy board 2.6 w k thermal derating 70mm x 70mm x 1.6mm free air and on the grass epoxy board 20.8 mw/c tj junction temperature 150 c topr operating temperature ?20 to +75 c tstg storage temperature ?40 to +150 c n ote: 1. the ics must be operated within the pt (power dissipation) or the area of safety operation. recommended operating conditions (ta = 25c) limits symbol parameter minimum typical maximum unit vm1 vm1 power supply (for spindle) 7.5 12 13.2 v vm2 vm2 power supply (for slide) 4.5 12 13.2 v vm3 vm3 power supply (for loading) 4.5 12 13.2 v 5vcc 5v power supply (for fs, ts) 4.5 5 7 v ioa focus, tracking and loading output current ? 0.5 0.8 a iob spindle output current ? 0.5 1 a ioc slide output current ? 0.25 0.4 a fosc pwm carrier frequency 30 ? 120 khz
M63028/029fp rev.1.0, sep.16.2003, page 5 of 21 thermal derating power dissipation pdp (w) 0 25 50 75 100 125 150 1.0 2.0 3.0 4.0 5.0 6.0 (w) using n-type board using p-type board ambient temperature ta ( ? c) this ic's package is power-ssop, so improving the board on which the ic is mounted enables a large power dissipation without a heat sink. for example, using an 1 layer glass epoxy resin board, the ic's power dissipation is 2.6w at least. and it comes to 3.6w by using an improved 2 layer board. the information of the n, p type board is shown in attached.
M63028/029fp rev.1.0, sep.16.2003, page 6 of 21 electrical characteristics common (ta=25c, 5vcc=vm3=5v, vm1 = vm2 = 12v unless otherwise noted.) limits symbol parameter conditions minimum typical maximum unit icc1 supply current 5vcc, vm1, vm2, vm3 current ?3242ma icc2 sleep current 5vcc, vm1, vm2, vm3 current under sleep (mu1 = mu2 = 0v) ?0 30 a fosc pwm carrier frequency osc: with 330pf ? 65 ? khz vinref ref inout voltage range 1.0 ? 3.3 v iinref ref terminal input current vref = 1.65v -10 ? 10 a vmu1lo mute1 terminal low voltage mu1 ? ? 0.8 v vmu1hi mute1 terminal high voltage mu1 2.5 ? ? v im1u mute1 terminal input current mu1 at 5v input voltage ? ? 500 a vmu2lo mute2 terminal low voltage mu2 ? ? 0.8 v vmu2hi mute2 terminal high voltage mu2 2.5 ? ? v im2u mute2 terminal input current mu2 at 5v input voltage ? ? 500 a
M63028/029fp rev.1.0, sep.16.2003, page 7 of 21 electrical characteristics spindle (ta=25c, 5vcc = vm3 = 5v, vm1 = vm2 = 12v unless otherwise noted.) limits symbol parameter conditions minimum typical maximum unit vdyc1 dynamic range of output io = 0.5 [a] 10.6 11.1 ? v vdead1? spin[ M63028/029fp rev.1.0, sep.16.2003, page 8 of 21 slide1, 2 (ta=25c, 5vcc = vm3 = 5vc, vm1 = vm2 = 12v unless otherwise noted.) limits symbol parameter conditions minimum typical maximum unit io = 0.5 [a] at vm2 = 5 [v] rsl = 0.9 ? 3.75 3.95 - vdyc2 dynamic range of output io = 0.5 [a] at vm2 = 12 [v] 10.3 10.8 - v vdead2? sl1in, sl2in][ M63028/029fp rev.1.0, sep.16.2003, page 9 of 21 electrical characteristics loadhing (ta=25c, 5vcc = vm3 = 5v, vm1 = vm2 = 12v unless otherwise noted.) limits symbol parameter conditions minimum typical maximum unit vm1 = 12[v vm3 = 5[v] io = 0.5a 3.95 4.2 - vdyc3-1 dynamic range of output vm1 = 12[v] vm3 = 12[v] io = 0.5a 6.9 7.6 - v vdyc3-2 dynamic range of output r=5.4[ ? ] vm3 = 4.75v, vm1 = 12v 3.35 3.55 - v vin3 control voltage input range 3 loun+ 0- 5v gvo3 control gain 3 (lo+) ? (lo?) (loin+) ? (ref) 16.7 18.1 19.3 db voff1 output offset voltage (lo+) ? (lo?) at loin+ = ref = 1.65v ?50 0 +50 mv focus (ta=25c, 5vcc = vm3 = 5v, vm1 = vm2 = 12v unless otherwise noted.) limits symbol parameter conditions minimum typical maximum unit vm1 = 12[v] io = 0.5[a] 4.0 4.25 - vdyc4 dynamic range of output vm1 = 12[v] io = 0.8[a] 3.55 3.95 - v vin4 control voltage input range 4 foin, toin 0 - 5 v (fo+) ? (fo?) (to+) ? (to?) gvo4 control gain 4 foin ? ref toin ? ref 20.2 21.6 22.8 db voff2 output offset voltage (fo+) ? (fo?) at ref = foin = 1.65v (to+) ? (to?) at ref = toin = 1.65v ?30 0 +30 mv note : this ic need condenser between each supply lines and gnd for stopped oscillation. thermal characteristics function start temperature of ic function start temperature of ic symbol parameter minimum typical max minimum typical max unit tsd thermal shut down * note3 - 165 - - 130 - c * note3 this tsd function start temperature doesn't show the guaranteed max. temperature of the devices. the guranteed max.temperature is tjmax.which is shown in "9.absolute maximum rating". the tsd function is a thermal protection in case the temperature of the devices goes up above tjmax because of wrong use. and these tsd temperature are the target temperatures for circuit design, not the guranteed temperatures. (the tsd function of all the devices is not checked by a test in high temperature.)
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M63028/029fp rev.1.0, sep.16.2003, page 10 of 21 channel select function logic control drive channel mu1 mu2 spin loading slide1 slide2 focus tracking spindle spin[ref currentlim it (brake select) select 6 h h h off on on on on on 56% - - select 5 h l h off on on on on on 100% - - select 4 h h l off on on on on on - - 56% (pwm) select 3 h l l off on on on on on - - (short) select 2 l h - - on off off off off off - - - - select 1 l l - - off off off off off off - - - - this ic has two mute terminal (mu1 and mu2). it is possible to control on / off of each channel and to select current limit under acceleration by external logic inputs. it has six kinds of function for select.in case of select1,the bias of all circuit becomes off. therefore,this mode is available in order to reduce the power dissipation when the waiting mode. in case of select2,the bias of other than loading circuit becomes off. therefore,this mode is available in order to reduce the power dissipation when the active mode. in case of select3,it is possible to select the short braking to tak e the brake of spindle motor. in case of select4,it is possible to select pwm reverse braking when in the same. in case of select5,it is possible to select the 100%current limit under acceleration. also,in case of select6,it is possible to select the 56%current limit under acceleration. therefore,this mode is available in order to reduce a temperature under acceleration. loading channel the loading channel is the circuit of btl voltage drive.this circuit has the referential input.output swing is determined with ? vin x 8.also,it is possible for this channel to use for the slide motor ,the focus coil and the tracking coil. the input terminal is high impedance.it is possible to do variable a gain by external resistor. in case of one mcu port,if use three state port,it is possible for this channel to have the stop function. loin+ ref lo+ lo- m forward reverse vm3 loading channel vo + -
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M63028/029fp rev.1.0, sep.16.2003, page 11 of 21 lo+ lo- lo+ lo- coil coil gvo = 8 [v/v] - + output voltage [v] vm3 2 vo = [lo+] [lo-] + - = 8 ([loin+] [ref]) [loin+] - [ref] (v) vo application (mcu: one port h/z/l control) logic contorol p1 situation of loading channnel output voltage swing 5v forward rotation vo = 8 (5[v]-ref[v]) r2/(r1+r2) z (hi impedance) short brake-->stop vo=0[v] 0 reverse rotation vo = -8 (0[v]-ref[v]) r2/(r1+r2) r1 p1 r2 loin+ ref application (one port h/z/l control) p1 5v 0v z
M63028/029fp rev.1.0, sep.16.2003, page 12 of 21 spindle channel the relationship between the differential voltage between spin and ref and the torque is shown in following figure.the voltage gain[gvo] is 1.0 [v/v] . the current gain[ gio] is 2.0[ a/v] (at sensing resistor :0.5 ? ,and r1= , r2=0 ? )in forward torque directions,and the dead zone is from 0mv to 80mv (at r1= , r2=0 ? ) the coil current gain under the reverse torque is the same with in forward torque directions.and the limitation function gets on when the differential voltage of vm1(12v) to rsp is 0.5v at forward and 0.28v at reverse. in case of select6 the differentialvoltage of vm1(12v)~rsp is 0.28v at forward.therefore,this mode is available in order to reduce a temperature under acceleration. therefore current- gain- control and current- limit of this ic is determined with sensing resister value,and more detail control can be determined with setting a gain- resister outer this ic as below. ctl-ref (v) forward torque reverse torque dead zone current limit current limit gio gio dead zone lim1f lim1r lim2f the example of current- gain and current- limit of spindle. gio * [a/v] rs[ ? ? ? ? ] ilim1f[a] ilim2f[a] ilim1r[a] r1 = r2 = 0 ? ? ? ? r1 = r2 r2 = 2 ? ? ? ? r1 0.50 1.00 0.56 0.56 2.00 1.00 0.66 0.75 0.66 0.37 0.37 1.33 0.66 0.44 1.00 0.50 0.28 0.28 1.00 0.50 0.33 gio * = r1/[(r1+r2) ? rs] [a/v]
M63028/029fp rev.1.0, sep.16.2003, page 13 of 21 ref spin rsp r1 r2 1.65v ctl vm1 rs hb hu+ hu- hv+ hv- hw+ hw- u v w m rh 5v gnd slide channel the relationship between the differential voltage between slin and ref and the torque is shown in following figure. the voltage gain[gvo] is 1.0 [v/v]. the current gain is 2.0[a/v] (at sensing resistor : 0.5 ? and r1= , r2=0 ? ) in forward torque directions, and the dead zone is from 0mv to 80mv (at r1= , r2=0 ? )). the coil current gain under the reverse torque is the same with in forward torque directions.and the limitation function gets on when the differential voltage of vm2(12v) to rsl is 0.5v. therefore current-gain-control and current-limit of this ic is determined with sensing resister value. forward reverse dead zone current limit current limit gio gio dead zone
M63028/029fp rev.1.0, sep.16.2003, page 14 of 21 rs forward reverse r1 r2 1.65v ctl ref sl1in rsl1 sl1+ sl1- gnd 1.65v ctl ref sl2in sl2+ sl2- gnd vm2 m r1 r2 rs rsl2 vm2 forward reverse m the example of current-gain and current-limit of slide. gio * [a/v] rs[ ? ? ? ? ] ilim[a] r1 = r2 = 0 ? ? ? ? r1 = r2 r2 = 2 ? ? ? ? r1 0.50 1.00 2.00 1.00 0.66 0.75 0.66 1.33 0.66 0.44 1.00 0.50 1.00 0.50 0.33 gio * = r1/[(r1+r2) ? rs] [a/v]
M63028/029fp rev.1.0, sep.16.2003, page 15 of 21 focus/tracking channel the focus and tracking channel is the voltage control drive using btl . the focus and tracking is the same composition. the relationship between the differential voltage between foin and ref and the output voltage is shown in following figure. the voltage gain [gvo] is 12.0[v/v]. ra ra r r r r fo- fo+ foin ref 5vcc coil ra r ra=6r - + ra r - - + - + fo+ fo- fo+ fo- coil coil gvo = 12 [v/v] - + output voltage [v] vo 5vcc 2 vo = [fo+] ? [fo-] + - = 12 ( foin ? ref) foin - ref (v)
M63028/029fp rev.1.0, sep.16.2003, page 16 of 21 direct pwm operation the spindle and the slide channel is controlled by the direct pwm control. also, built-in the current limit circuit. this ic controls the motor current directly. forward current path timing 1. forward current path timing 2. time carrier period motor current control value io=vrs/ rs current path1 current path 1 rs current path 2 vm2 rsl sl+ sl- gnd vm1 current comp m rs vm2 rsl sl+ sl- gnd vm1 current comp m current path2 control value pwm carrier frequency setting pwm carrier frequency is decided by charging and discharging the capacitor that is connected to osc terminal outer ic.examination of the relationship the capacitor connected to osc terminal and pwm carrier frequency is given in following table. capacitor [pf] 820 750 330 220 180 130 110 carrier frequency [khz] 28 30 65 90 110 140 160 * note) this pwm carrier frequency is typ value.
M63028/029fp rev.1.0, sep.16.2003, page 17 of 21 recommendation of short brake mode at spindle drive this ic has two brake mode, pwm-brake-mode and short-brake-mode. in this ic recommendation, short-brake-mode is superior to pwm-brake- mode to reducing the power dissipation and to avoid braking down of this ic. (by excessive reverse torque current in braking a motor with pwm- brake from high- speed- rotation with being excessive back-emf, this ic could be broken.) the relationship between hall-amplifier-input and output-current-commutation/fg output at spindle drive the relationship between the hall elements and the motor output current/fg output is shown in bellow figure. hw+ hv+ hu+ u w v u w vuw v output current 0 - hall input u v w u v w v u w forward spin > ref reverse spin < ref outer roter hall elements fg output + * the logic of the fg output waveform (hi / lo) synchronized hall input waveform (v phase) of m63029fp is inverted specification of m63023fp and m63026fp. m63029fp M63028fp fg function at spindle drive the fg terminal outputs the square pulse signal synchronizing with the hall inputs timing. and,the fg terminal is open- collector output. phase delay circuit at slide phase delay circuit is built in the ic to detect an output spike current, when the motor current direction is switching. in switching the motor current direction, phase delay circuit switch-off all output transistor of h-bridge for 3 sec. output current setting at slide in this ic,since output transistor is npn- type transistor,motor coil current (io)is larger than sensing resistance current about 10ma (typ.)according to base current of output transistor. therefore please design output current with consisting these base current.
M63028/029fp rev.1.0, sep.16.2003, page 18 of 21 i/o circuit 5vcc 2k 5vcc 2k vm1 rsp gnd u osc 5vcc 2k lo+ gnd vm1 rsl1 sl1+ gnd 5vcc 5vcc 2k 8k 30k vm3 foin, toin, spin sl1in, sl2in, loin+ hu+, hu-, hv+, mu1, mu2 vm1, rsp, u, v, w hv-, hw+, hw-, ref hb hb fg 10k 2k 2k 5vcc 5vcc 5vcc vw lo- to+ fo+ to- fo- 9vmax reg sl1- sl2+ sl2- rsl2 5vcc, vm3, fo+, fo-, to+, to-, lo+, lo- vm1, rsl1,rsl2, sl1+, sl1-, sl2+, sl2-
M63028/029fp rev.1.0, sep.16.2003, page 19 of 21 the boards for thermal derating evaluation glass-epoxy fr-4 thickness size material : copper board material 70 70mm t=1.6mm 1 and 2 layers :t= 18 m thickness n-type board [2 layer] o-type board [2 layer] p-type board [1 layer] 1st layer [top view] 2nd layer [back view] evaluation board mounted ic power-ssop 42p9r-k chip heat sink lead
M63028/029fp rev.1.0, sep.16.2003, page 20 of 21 application circuit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 m63 028/029 fp 19 20 21 22 23 24 ts fs loading 10k * pull-up 12v m 1.65v rsl1 rsp r1 r2 r3 r4 5 12v c1 slide m r5 r6 r7 r8 rh m slide rs l2 r9 r11 r10 r12 ref 5v d/a 5v power focus tracking c2 5 12 loading c2 d/a mcu sl1in sl2in vm2 rsl2 sl2+ sl2- gnd rsl1 sl1+ sl1- gnd w v u rsp hw- hw+ hv- hv+ hu- hu+ osc mu1 loin+ vm3 mu2 lo- lo+ fo- fo+ gnd 5vcc to+ to- gnd toin foin spin ref fg hb vm1 c2 dsp this value is a recommended value and is not guaranteed performance. parts no. typ. unit note rsp 0.33 ? ilim1f=1.5a, ilim1r=1.0a, gain=3.0a/v rsl1, rsl2 2 ? ilim=0.25a, gain=0.5a/v rh 200 ? r1, r2, r3, r4, r5, r6 10k ? r7, r8 10k ? c1 330p f fosc=65khz r9, r10, r11, r12 10k ? c2 100n f
M63028/029fp rev.1.0, sep.16.2003, page 21 of 21 package dimensions symbol min nom max dimension in millimeters lead material weight(g) jedec code eiaj package code recommended mount pad 42p9r-k plastic 42pin 450mil hssop cu alloy hssop42-p-450-0.8 0.75 0.9 0.16 1.27 0 ? 0.3 11.63 8.2 17.3 0.23 0.27 0.5 11.43 0.5 11.93 0.8 8.4 17.5 0.25 0.32 2.0 0.1 0 1.765 10 ? 0.1 0.7 12.23 8.6 17.7 0.3 0.37 2.2 0.2 detail f f a e e 1 b 2 l 2 g d y m e b x a 2 a 1 l 1 c l a a 1 a 2 b c e d e l l 1 z 1 b 2 h e e 1 z x y l 2 z z 1 detail g e 42 22 21 1 h e mmp
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