M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 pin configuration (top view) package outline : 42 pin power ssop (42p9r-b) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 cd-rom, dvd, dvd-rom, dvd-ram ,optical disc related system,etc 1 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 three voltage supply terminals (for spindle, slide,focus/tracking and loading), and three 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 . 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 brs vm1 fg reverse detect 120o 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 mu1 s s s osc frequency generator x12 regulator x12 logic s current comp. direction comp. sl2in x8 5v power supply ctl amp. hall bias
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 2 symbol symbol terminal terminal function terminal terminal function 2 3 4 5 6 7 8 15 16 17 18 19 21 22 23 24 25 26 27 28 36 37 38 39 40 41 42 loading non-inverted output lo+ loading inverted output lo- hw- hw+ hv- sensor amp. input hv- rsl1 slide current sense 1 motor drive output u u spindle current sensie rsp gnd gnd gnd gnd 14 20 29 hw+ sensor amp. input hw- sensor amp. input hv+ sensor amp. input hv+ hu- sensor amp. input hu- hu+ hu+ sensor amp. input 35 9 sl1+ slide non-inverted output 1 34 10 sl1- slide inverted output 1 33 gnd gnd 11 gnd gnd 32 12 w motor drive output w 31 13 v motor drive output v 30 mute 1 mu1 vm2 sl1in spin tracking control voltage input pwm carrier oscilation set osc fg frequency generator output foin focus control voltage input toin spindle control voltage input focus inverted output fo- to- tracking inverted output to+ tracking non-inverted output hb ref focus non-inverted output fo+ reference voltage input vm1 motor power suppry 2(for slide) brs brake select control terminal motor power suppry 1(for spindle) loin+ loading control input(+) 5vcc slide control voltage input 1 sl2in slide control voltage input 2 rsl2 slide current sense 2 sl2+ slide non-inverted output 2 sl2- slide inverted output 2 5v power supply(for fs ,ts) vm3 power supply3(for loading) bias for hall sensor 1
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 3 k q mw / o c o c o c o c -20 ~ +7 5 -40 ~ +150 vm2 ioa v a vin pt tj topr tstg 150 w symbol parameter conditions rating unit motor power supply 2 slide power supply motor output current a power dissipation free air and on the grass epoxy board thermal derating junction temperature operating temperature storage temperature maximum input voltage of terminals 0 ~ 5vcc v < absolute maximum rating > (ta=25o c ) 1.0 20.8 focus,tracking and loading output current mu1,hw-,hw+,hv,hv+,hu-,hu+,ref,spin,brs toin,foin,osc,slin1,slin2,loin+ 2.6 free air and on the grass epoxy board 15 15 v vm1 motor power supply 1 spindle power supply 5vcc 5v power supply 7 v iob a motor output current b 1.2 *note 1 spindle output current v v 12 < recommended operating conditions ]> (ta=25o c ) symbol parameter minimum typical maximum limits unit vm1 power supply (for spindle) vm1 13.2 ioa spindle output current iob khz fosc a 0.5 v 12 vm2 power supply(for slide) vm2 4.5 13.2 6 1.0 120 30 pwm carrier frequency focus and tracking power supply 5vcc 5v power supply(for fs,ts) 5 7 4.5 *note1 ; the ics must be operated within the pt (power dissipation) or the area of safety operation the spindle output terminal is needed external shottky diode between each output and gnd when it is used above 0.6a. discription(ioa) is case of with external shottky diode. *note2 the spindle output terminal is needed external shottky diode between each output and gnd when it is used above 0.6a. discription(ioa) is case of with external shottky diode. vm3 v motor power supply 3 loading power supply 15 ioc a motor output current c 0.5 slide output current ioc slide output current a 0.25 0.4 v 12 vm3 power supply(for loading) vm3 4.5 13.2 a focus, tracking and loading output current 0.5 0.8 *note 1 *note 1 *note 2
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 < thermal derating > ambient temperature ta ( oc ) 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 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. 4 icc1 icc2 ma fosc khz 5vcc,vm1, vm2 ,vm3 current 65 5vcc,vm1, vm2 ,vm3 current under sleep symbol parameter supply current conditions limits min typ max unit pwm carrier frequency sleep current (mu1 = 0v). < electrical characteristics > 60 common osc : with 330pf vinref v 3.3 ref input voltage range vmulo v 0.8 mute terminal low voltage mu1 vmuhi v imu a 500 mute terminal input current at 5v input voltage 1.0 3.0 iinref a ref input voltage range vref=1.65v + 10 -10 (ta=25 o c, 5vcc=vm3=5v,vm1=vm2=12v unless otherwise noted.) 78 mute terminal high voltage mu1 mu1 0 30 a brslo v 0.8 brs terminal low voltage brs brshi v ibrs a 430 brs terminal input current at 5v input voltage 3.0 brs terminal high voltage brs brs
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 5 [electrical characteristics] vdyc1 vdead1- v vin1 v mv symbol parameter dynamic range of output conditions limits min typ max unit control voltage input range 1 control voltage dead zone 1 spin 10.8 10.3 0 spindle gvo1 v/v 1.0 1.15 control gain 1 gio1=gvo1/ rs [a/v] vlim1f v 0.6 control limit 1f vhmin mvp-p 0.85 0.4 vhcom v common mode input range hall sensor amp. input signal level hall sensor amp. mv +80 vdead1+ spin[ M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 6 vdyc3-1 v vin3 v symbol parameter conditions limits min typ max unit control voltage input range 3 loading gvo3 db control gain 3 (loin+) - (ref) voff1 mv +50 output offset voltage -50 (lo+) - (lo-) at loin+=ref =1.65v 0 (lo+) - (lo-) dynamic range of output loin+ 5 0 4.2 3.9 io=0.5[a] vm1=12[v] (ta=25oc, 5vcc=vm3=5v,vm1=vm2=12v unless otherwise noted.) symbol parameter unit min typ max min typ max function start temperature of ic function stop temperature of ic tsd thermal shut down 160 oc 130 vdyc4 v vin4 v symbol parameter conditions limits min typ max unit control voltage input range 4 focus / tracking gvo4 db control gain 4 foin-ref voff2 output offset voltage (fo+) -(fo-) at ref=foin=1.65v (to+) -(to-) at ref=toin=1.65v (fo+) -(fo-) io=0.5[a] vm1=12[v] dynamic range of output foin,toin 5 0 4.2 3.8 mv toin-ref (to+) -(to-) +47 -47 0 21.6 22.8 20.2 (ta=25oc, 5vcc=vm3=5v,vm1=vm2=12v unless otherwise noted.) 18.1 19.3 16.7 vm3=5[v] 7.6 6.9 vm3=12[v] vdyc3-2 dynamic range of output r=5.4[ w ] vm3=4.75v , vm1=12v 3.5 3.3 v note : this ic need condenser between each supply lines and gnd for stoped oscillation. *note3 this tsd function start temperature doesn't show the guaranteed max. temperature of the devices. the guranteed max. temperature is tj max. 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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M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 this ic has mute terminal (mu1). it is possible to control on / off of the channel by external logic inputs. 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 all channel becomes on. standby function logic control drive channel mu1 loading slide1 slide2 focus tracking spindle select2 h on on on on on on serect1 l/open off off off off off off 7 loading channel loin+ ref lo+ lo- m forward reverse vm3 loading channel vo + - the loading channel is the circuit of btl voltage drive. this circuit has the referential input. output swing is determined with d 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. brake select function brs spin < ref ref < spin hi reverse brake forward l/open short brake forward this ic has brs terminal (brs). it is possible for a braking timiming of spindle drive to select which the short brake or the reverse brake by brs. it shuould select the short brake in case of high speed system and please change to the reverse brake when the rotation speed becomes enough low. it is available when the spin voltage is low than the reference voltage.
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 logic control situation of loading channel output voltage swing p1 5v forward rotation vo= 8x(5[v]-ref[v]) xr2/(r1+r2) z short brake --> stop vo=0 [v] (hi impedance) 0 reverse rotation vo= -8x(5[v]-ref[v]) xr2/(r1+r2) application.1 (one port h/z/l control) 8 r1 p1 r2 loin+ ref application.1 (one port h/z/l control) p1 5v 0v z lo+ lo- lo+ lo- coil coil gvo = 8 [v/v] - +
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 9 spindle channel the relationship between the differential voltage between spin and ref and the torque is shown in right figure. the voltage gain[gvo] is 1.0 [v/v]. the current gain[gio] is 2.0[a/v] (at sensing resistor : 0.5 ohm,and r1= ,r2=0ohm) in forward torque directions, and the dead zone is from 0mv to 80mv (at r1= ,r2=0ohm) . 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) ~ rsp is 0.5v. 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. gio*= r1 / [(r1+r2)?rs] [a/v] the example of current-gain and current-limit of spindle. ref spin rsp r1 r2 1.65v ctl vm1 rs hb hu+ hu- hv+ hv- hw+ hw- u v w m rh 5v gnd rs [ w ] 0.50 0.56 2.00 ilim1r [a] 0.75 0.37 1.33 1.00 0.28 1.00 gio* [a/v] 1.00 0.66 0.50 0.66 0.44 0.33 r1= r2=0 ohm r1=r2 r1=2 ? r2 ctl -ref (v) forward torque reverse torque dead zone current limit current limit gio gio dead zone lim1f lim1r 1.00 ilim1f [a] 0.66 0.50
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 the relationship between the differential voltage between slin and ref and the torque is shown in right figure. the voltage gain[gvo] is 1.0 [v/v]. the current gain is 2.0[a/v] (at sensing resistor : 0.5 ohm and r1= ,r2=0ohm) in forward torque directions, and the dead zone is from 0mv to 80mv (at r1= ,r2=0ohm)). 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) ~ rsl is 0.5v. therefore current-gain-control and current-limit of this ic is determined with sensing resister value. the example of current-gain and current-limit of slide. slide channel 10 sl*in -ref (v) current limit gio forward reverse current limit dead zone dead zone gio rs [ w ] 0.50 1.00 2.00 ilim [a] 0.75 0.66 1.33 1.00 0.50 1.00 gio* [a/v] 1.00 0.66 0.50 0.66 0.44 0.33 r1= r2=0 ohm r1=r2 gio*= r1 / [(r1+r2) ? rs] [a/v] rs m forward reverse r1 r2 1.65v ctl ref sl1in rsl1 sl1+ sl1- gnd rs m forward reverse r1 r2 1.65v ctl ref sl2in rsl2 sl2+ sl2- gnd vm2 vm2 r1=2?r2
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 11 focus / tracking channel 6r 6r r r r r r r fo- fo+ foin ref 5vcc coil foin - ref (v) fo+ fo- fo+ fo- coil coil gvo = 12 [v/v] - + output voltage [v] vo 5vcc 2 vo=[fo+]-[fo-] =12 (foin-ref) 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 below figure. the voltage gain [gvo] is 5.0 [v/v].
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 12 forward current path timing 1. forward current path timing 2. time carrier period motor current control value io=vrs / rs control value current path 1 current path 2 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. direct pwm operation m current path 1 rs current path 2 m rs vm2 vm2 rsl rsl sl+ sl- sl+ sl- gnd gnd
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 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. * note) this pwm carrier frequency is typ value. the relationship between hall-amplifier-input and output-current-commutation at spindle drive the relationship between the hall elements and the motor output current is shown in bellow figure. hw+ hv+ hu+ u w v u w v u w 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 13 capacitor [pf] 330 220 65 90 130 140 carrier frequency [khz] 110 160 180 110 820 750 28 30 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.)
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 fg function at spindle drive the fg terminal outputs the square pulse signal synchronizing with the hall inputs [hv+, hv-] 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 trangister of h- bridge for 3sec. output current setting at slide in this ic, since output tranjister is npn-type tranjister, motor coil current (io) is larger than sensing resistance current about 10ma (typ.) according to base current of output tranjister. therefore please design output current with consisting these base current. 14
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 15 i/o circuit 5vcc 2k hu+,hu- hv+,hv- hw+,hw- ref 5vcc 2k mu1 fg vm1,rsp,u,v,w vm1 rsp u v w gnd osc vm2,rsl,sl1+,sl1-,sl2+,sl2- 5vcc,vm3,fo+,fo-,to+,to-,lo+,lo- 5vcc 2k 2k 2k 5vcc 5vcc lo+ lo- gnd to+ to- reg vm1 9vmax fo+ fo- vm2 rsl1 sl1+ sl1- gnd sl2+ sl2- rsl1 5vcc 5vcc 5vcc 2k 8k 30k 10k 2k 8k 10k 4k brs vm3 foin ,toin,spin loin+,opin- hb 5vcc
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 glass-epoxy fr-4 thickness size material ::copper board material 7070mm t=1.6mm 1 and 2 layers thickness:t =18m n-type board [2 layer] o-type board [2 layer] p-type board [1 layer] 1st layer [top view] 2nd layer [back view] [ the boards for thermal derating evaluation] 1 6 evaluation board mounted ic power-ssop 42p9r-b chip heat sink lead
M63021FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990728 17 [application circuit no.1] 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
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