M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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 loin+ loin- fo- fo+ to+ to- gnd lo- lo+ brs gnd foin toin spin ref fg hb vm1 fg reverse detect 120 o matrix ctl amp. current comp. direction ctl amp. current comp. direction logic bias tsd fg hu+ hu- hv+ hv- hw+ hw- hb ref spin sl1in toin foin mu1 s s s osc frequency generator x5 regulator x5 logic s current comp. direction comp. sl2in x5 5v power supply ctl amp.
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 2 symbol symbol terminal terminal function terminal terminal function 1 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 loin+ loading control input(+) sl1in spin tracking control voltage input pwm carrier oscilation set osc hb bias for hall sensor 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 brs ref focus non-inverted output fo+ reference voltage input vm1 motor power suppry 3 ( for slide) 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,lo)
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 3 k q mw / oc oc -20 ~ +75 -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 (ta=25oc ) 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-,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 and slide output current v v 12 (ta=25oc ) symbol parameter minimum typical maximum limits unit vm1 power supply(for spindle) vm1 13.2 ioa spindle and slide output current a iob focus, tracking and loading output current khz fosc a 0.5 0.5 v 12 vm2 power supply(for slide) vm2 4.5 13.2 6 1.0 0.8 120 30 pwm carrier frequency focus,tracking and loading power supply 5vcc 5v power supply(for fs,ts,lo) 5 7 4.5 *note1 ; the ics must be operated within the pt (power dissipation) or the area of safety operation the spindle and slide 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 and slide 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. *note 2 oc oc
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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 current 65 5vcc,vm1, vm2 current under sleep symbol parameter supply current conditions limits min typ max unit pwm carrier frequency sleep current (mu1 = 0v). 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=25oc, 5vcc=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 mu1=5v
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 5 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 vhb v hb output voltage ihb ma 30 hb terminal sink current 0.85 0.4 vhcom v common mode input range hall sensor amp. input signal level hall sensor amp. mv +80 vdead1+ spin[ M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 6 symbol parameter unit min typ max min typ max function start temperature of ic function stop temperature of ic tsd thermal shut down 160 130 vdyc3-1 v vin3 v symbol parameter conditions limits min typ max unit control voltage input range3 loading gvo3 db control gain 3 (loin+) - (loin-) voff1-1 mv +100 output offset voltage -100 (lo+) - (lo-) at loin+=loin- =5v 0 (lo+) - (lo-) dynamic range of output loin+,loin- 5 0 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-) +35 -35 0 14 15.2 12.5 4.0 3.8 io=0.5[a] (ta=25?, 5vcc=5v,vm1=vm2=12v unless otherwise noted.) (ta=25?, 5vcc=5v,vm1=vm2=12v unless otherwise noted.) 14 15.2 12.5 vdyc3-2 v dynamic range of output r=5.4[w] 5vcc=4.75[v],vm1=12[v] 3.2 3.4 voff1-2 mv +50 output offset voltage -50 (lo+) - (lo-) at loin+=loin- =1.65v 0 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.) ?
]
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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. regard with making off the loading channel in case of select2,please refer to [loading channel]. standby function logic control drive channel mu1 loading slide1 slide2 focus tracking spindle select2 h on on on on on on select1 l/open off off off off off off 7 loading channel loin+ loin- lo+ lo- m forward reverse 5vcc 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 5. 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. the output becomes high impedance in case of both input voltage becomes under 0.7 volts. it is possible for the input terminal to operate from 0 volts.the following table and diagram show an application in case of two mcu port and one mcu port for the loading motor.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 bsr spin < ref ref < spin hi reverse brake foward l/open short brake foward 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.
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 logic control situation of loading channel output voltage swing p1 p2 5v 5v short brake --> stop vo= 0 [v] 0 5v reverse rotation vo= - 5x5xr1/(r1+2xr2) 5v 0 forward rotation vo= 5x5xr1/(r1+2xr2) 0 0 off [ high impedance output] off p1 5v 0v p2 5v 0v r1 r1 p1 r2 r3 loin+ loin- 5v application.1 (two port h/l control) logic control situation of loading channel output voltage swing p1 5v forward rotation vo= 2.5[v] x5x r2 (r1/2)+r2+r3 z short brake --> stop vo= 0 [v] (hi impedance) 0 reverse rotation vo=- 2.5[v] x5x r2 (r1/2)+r2+r3 application.2 (one port h/z/l control) application.1 ( two port h/l control) application.2 (one port h/z/l control) 8 r2 r2 p1 p2 r1 loin+ loin- p1 5v 0v z lo+ lo- lo+ lo- coil coil gvo = 5 [v/v] - +
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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 60mv (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 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 r1=2?2
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 11 focus / tracking channel 2.5r 2.5r r r r r r r fo- fo+ foin ref vm3 coil foin- ref (v) fo+ fo- fo+ fo- coil coil gvo = 5 [v/v] - + output voltage [v] vo vm3 2 vo=[fo+]-[fo-] =5 (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].
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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. 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. 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.)
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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 3 sec. 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 20ma (typ.) according to base current of output tranjister. therefore please design output current with consisting these base current. 14
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 15 i/o circuit foin,toin,spin loin+,loin- opin- 5vcc 2k hu+,hu- hv+,hv- hw+,hw- ref 5vcc 2k mu1 hb fg vm1,rsp,u,v,w vm1 rsp u v w gnd osc vm2,rsl,sl1+,sl1-,sl2+,sl2- 5vcc,fo+,fo-to+,to-,lo+,lo- 5vcc 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
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 glass-epoxy fr-4 thickness size material :copper board material 7070mm t=1.6mm 1 and 2 layers thichness: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] 16 evaluation board mounted ic power-ssop 42p9r-b chip heat sink lead
M63020FP spindle motor and 5ch actuator driver ( / 17) mitsubishi semiconductors rev990726 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
|
