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IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 1 - www.interpionsemi.com the IP9001 is a monolithic integrated circuit, and suitable for a 4-ch motor driver which drives focus actuator, tracking actuator, sled motor, spindle motor of portable cdp, vcdp systems. and it also provides dc/dc converter, reset, recharge, and short circuit protection. - 4ch btl(balanced transformerless) driver. - built-in dc/dc converter control circuit. - built-in reset circuit. - built-in battery charging circuit. - built-in short circuit protection. - built-in normal op amp. - built-in thermal shut down circuit. device package operating temp IP9001 44qfp-1010b -35 o c ~ +85 o c descriptions order information features 44qfp1010b
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 2 - www.interpionsemi.com block diagram
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 3 - www.interpionsemi.com pin connections IP9001
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 4 - www.interpionsemi.com pin descriptions no symbol i/o description 1 sens i battery sense 2 vbat - battery 3 reset o reset output 4 dead i dead time setting 5 drv o transistor drive 6 eampo o error amp output 7 eampi i error amp input 8 sprt i short circuit protection setting 9 ct i triangular wave output 10 n/c - no connection 11 opin- i opamp input (-) 12 vcc1 - power supply1 13 opout o opamp output 14 opin+ i opamp input (+) 15 vcc2 - power supply2 16 vref i reference voltage 17 in3 i ch3 input 18 in4 i ch4 input 19 mute34 i mute for ch3, 4 20 in2 i ch2 input 21 mute2 i mute for ch2 22 in1 i ch1 input no symbol i/o description 23 brake1 i brake for ch1 24 vo4r o ch4 reverse output 25 vo4f o ch4 forward output 26 vo3r o ch3 reverse output 27 vo3f o ch3 forward output 28 pgnd - power ground 29 vo2f o ch2 forward output 30 vo2r o ch2 reverse output 31 vo1f o ch1 forward output 32 vo1r o ch1 reverse output 33 rchg i charge current setting 34 amute o reset inverting output 35 emp o empty detection output 36 pvcc - h-bridge power supply 37 psw o pwm transistor drive 38 clk i external clock input 39 start i dc/dc converter start 40 off i dc/dc converter off 41 vchg - charger circuit power supply 42 sel i empty detection level set 43 sgnd - signal ground 44 pswr i pwm error conpensation
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 5 - www.interpionsemi.com characteristics symbol value unit svcc1max 13.5 v svcc2max 13.5 v hvccmax 13.5 v chgvccmax 13.5 v power dissipation pd 1 *(note) w operating temperature topr -35 ~ +85 o c storage temperature tstg -55 ~ 150 o c maximum output current iomax 0.5 a maximum supply voltage note> 1. when mounted on 50mm x 50mm x 1mm pcb (phenolic resin material). 2. power dissipation reduces 8 mw/ o c for using above ta=25 o c 3. do not exceed pd and soa. power dissipation curve p o w e r d i s s i p a t i o n ( w ) ambient temperature ( c ) 25 50 75 100 125 150 175 0 0.5 1 1.5 recommended operating conditions characteristics symbol value unit vbat 1.5 ~ 8.0 v vcc1 2.7 ~ 5.5 v vcc2 2.7 ~ 5.5 v pvcc ~ vbat v vchg 3.0 ~ 8.0 v ambient temperature ta -10 o c ~ +70 o c operating supply voltage soa absolute maximum ratings
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 6 - www.interpionsemi.com electrical characteristics characteristics sym- bol conditions min typ max unit vbat standby current i st vbat=9v,vcc1,2=vref=0v - 0 3 ua vbat no-load power supply current i bat pvcc=0.45v,mute34=3.2v - - 4.5 ma vcc1 no-load power supply current i cc1 pvcc=0.45v,mute34=3.2v,e rri=0v - - 6.5 ma vcc2 no-load power supply current i cc2 pvcc=0.45v,mute34=3.2v - - 5.5 ma vchg no-load power supply current i vchg vchg=4.5v, rout=open - - 2.0 ma [ btl drive part ] ch1,3,4 closed-loop voltage gain g v134 - 12 14 16 db ch2 closed-loop voltage gain g v2 - 21.5 23.5 24.5 voltage gain difference g vc - -2 0 2 ch1,3,4 input resistance r i134 in=1.7v & 1.8v - 11 - k ohm ch2 input resistance r i2 - 7.5 - maximum output voltage v om rl=8ohm, vcc1=vcc2=3.8v,pvcc=2.9v ,vref=1.9v,in=0 & 3.8v 2.1 2.4 - v ch1,3,4 output offset voltage v oo134 vref=in=1.6v -50 0 50 mv ch2 output offset voltage v oo2 -130 0 130 dead band width v db - -10 0 10 ch1 brake on voltage v brkon in1=1.8v 2.0 - - v ch1 brake off voltage v brkoff in1=1.8v - - 0.8 v brake 1 vbat current i brkbat - 4 7 10 ma (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 7 - www.interpionsemi.com electrical characteristics - - - continued characteristics symbol conditions min typ max unit [ btl drive part ] - - - continued ch2 mute on voltage v m2on in2=1.8v 2.0 - - v ch2 mute off voltage v m2off in2=1.8v - - 0.8 ch34 mute on voltage v m34on in3=in4=1.8v - - 0.8 ch34 mute off voltage v m34off in3=in4=1.8v 2.0 - - vref all mute on voltage v refon in1=in2=in3=in4=1.8v 1.2 - - vref all mute off voltage v refoff in1=in2=in3=in4=1.8v - - 0.8 [ pwm power supply drive part ] pwm sink current i pwm in1=2.1v 10 13 17 ma pvcc level shift voltage v shif ini1=1.8v,pvcc-out1f 0.35 0.45 0.55 v pwm amp transfer gain g pwm in1=1.8v,pvcc=1.2~1.4v 16.7 20 25 ua/v [ dc/dc converter part - - - error amp ] vcc1 threshold voltage v s1th - 3.05 3.20 3.35 v eampo output high level voltage v eoh eampi=0.7v,io= -100ua 0.9 1.1 - eampo output low level voltage v eol eampi=1.3v,io= 100ua - - 0.3 [ dc/dc converter part - - - short circuit protection ] sprt voltage normal v spr eampi=1.3v - 0 0.1 v sprt current1 i spr1 eampi=0.7v 6 10 16 ua sprt current2 i spr2 eampi=1.3v,off=0v 12 20 32 ua sprt current3 i spr3 eampi=1.3v,vbat=9.5v 12 20 32 ua sprt impedance r spr - 175 220 265 k ohm sprt threshold voltage v scpth eampi=0.7,ct=470pf 1.10 1.20 1.30 v overvoltage protection detection voltage v ovp ovp voltage 8 8.4 9.0 v sens resistance r sens sel=0v 17 24 30 k ohm (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 8 - www.interpionsemi.com electrical characteristics - - - continued characteristics symbol conditions min typ max unit [ dc/dc converter part - - - transistor drive ] drv output high level voltage1 v drhs vbat=ct=1.5v vcc1=vcc2=0v, io=-2ma at start 0.78 0.98 1.13 v drv output high level voltage2 v drh ct=0v,erri=0.7v, io=-10ma ,scp=0v 1.0 1.50 - drv output low level voltage2 v drl ct=2v,io=10ma - 0.3 0.45 drv oscillator frequency1 f dr1 ct=470pf, vcc1=vcc2=ov, at start 65 80 95 khz drv oscillator frequency2 f dr2 ct=470pf,clk=0v 60 70 82 drv oscillator frequency3 f dr3 ct=470pf, - 88.2 - drv oscillator minimum pulse width t min ct=470pf, eampo=0.7 ~ 0.5 sweep 0.01 - 0.6 usec pulse duty at start d dr1 ct=470pf, vcc1=vcc2=ov 40 50 60 % maximum duty at free run d dr2 eampi=0.7v,ct=470pf,cl k=0v 70 80 90 maximum duty with synchronized clock d dr3 eampi=0.7v,ct=470pf 65 75 85 [ dc/dc converter part - - - interface ] off threshold voltage v stpth eampi=1.3v - - 1.2 off bias current i stp off=0v 75 95 115 start on voltage v strton vcc1=vcc2=0v, ct=2v - - 1.4 v start off voltage v strtoff vcc1=vcc2=0v, ct=2v 2.1 - - v start bias current i bstrt start=0v - 16 - ua clk on voltage v clkon - 2.0 - - v clk off voltage v clkoff - - - 0.8 v clk bias current i clk clk=3.2v - - 10 ua v ua (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 9 - www.interpionsemi.com electrical characteristics - - - continued characteristics symbol conditions min typ max unit [ dc/dc converter part - - - dead time ] dead impedance r dead - 52 65 78 k ohm dead output voltage v dead - 0.78 0.88 0.98 v [ dc/dc converter part - - - start ] start switching voltage v ssv vcc1=vcc2=0v~3v sweep, start=0v 2.3 2.5 2.7 v start switching hysteresis voltage v sshs start=0v 130 200 300 mv discharge release voltage v dis - 1.63 1.83 2.03 v [ empty detect ion part ] empty detect voltage1 v empt1 vsel=0v 2.1 2.2 2.3 v empty detect hysteresis1 v emphs1 vsel=0v 25 50 100 mv empty detect voltage2 v empt2 isel=-2ua 1.7 1.8 1.9 v empty detect hysteresis2 v emphs2 isel=-2ua 25 50 100 mv empty output voltage v emp io=1ma, sens=1v - - 0.5 v sel detect voltage v selth vselth=vbat-sel, sens=2v 1.5 - - v sel detect current i sel - -2 - - ua (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 10 - www.interpionsemi.com electrical characteristics - - - continued characteristics symbol conditions min typ max unit [ reset part ] vcc1 reset threshold voltage ratio r rstoth ratio to error amplifier threshold voltage 85 90 95 % reset detect hysteresis width v rsths - 25 50 100 mv reset output voltage v rst io=1ma,svcc1=svcc2=2. 8v - - 0.5 v reset pull-up resistance r rst - 72 90 108 k ohm amute output voltage1 v amo1 io=1ma,svcc1=svcc2=2. 8v 2.0 - 2.4 v amutet output voltage2 v amo2 io=1ma,svcc1=svcc2=2. 8v, start=0v 2.0 - 2.4 amute pull-down resistance r amu - 77 95 113 k ohm [ op-amp ] input bias current i bias opin+=1.6v - - 300 na input offset voltage v ofop opin+=1.6v -5.5 0 5.5 mv high level output voltage v ohop rl=open 2.8 - - v low level output voltage v olop rl=open - - 0.2 output source current i src 50ohm, gnd - -6.5 -3.0 output sink current i snk 50ohm, svcc 3 6 - open loop voltage gain g vo vin=-75db, f=1khz - 70 - db slew rate sr - - 0.5 - v/us ma (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 11 - www.interpionsemi.com electrical characteristics - - - continued characteristics symbol conditions min typ max unit [ battery charging part ] rchg bias voltage v rchg vchg=4.5v, rchg=1.8k ohm 0.71 0.81 0.91 v rchg output resistance r rchg vchg=4.5v, rchg=0.5 and 0.6v 0.75 0.95 1.20 k ohm sel leakage current1 i selleak1 vchg=4.5v, rchg=open - - 1.0 sel leakage current2 i selleak2 vchg=0.6v, rchg=1.8k ohm - - 1.0 sel saturation voltage v selsat vchg=4.5v, io=300ma, rchg=0 ohm - 0.45 1.0 v ua (ta = 25 o c, vcc1=vcc2=3.2v, vbat=2.4v, vref=1.6v, vchg=0v, fclk=88.2khz unless otherwise specified.)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 12 - www.interpionsemi.com application summary mute34(pin19) high ch3,ch4 normal operation low ch3,ch4 shut down mute2(pin21) ch2 shut down ch2 normal operation brake1(pin23) ch1 shut down ch1 normal operation table2. reference all mute - mute function using the mute and brake pin (channel mute) mute function for each channels can be obtained using the mute pin (pin19,pin21) and brake pin (pin23). * when the voltage of the pin19 becomes low , the bias currents for ch3,ch4 are shut down and those corresponding channels are muted. on the contrary, when the voltage of the pin19 becomes high, the channel drivers operate normally. * when the voltage of the pin21,23 become high , the bias currents for ch1,ch2 are shut down and those corresponding channels are muted. on the contrary, when the voltage of the pin21,23 become low, the channel drivers operate normally. - all mute function using the ref pin (reference all mute) muting all channel drivers can be obtained using the ref (signal reference) pin. * when the input voltage of the signal reference pin (pin16) is below 1.0v, the bias currents of all channel drivers are shut down. vref(pin16) above 1.0v ch1,ch2,ch3,ch4 normal operation below 1.0v ch1,ch2,ch3,ch4 shut down table1. channel mute & brake - thermal shutdown (tsd) the IP9001 has a thermal protection. if the chip temperature rises above 175 o c, then the main bias current will be shut down by the protection circuit. the hysteresis temperature is 25 o c temperature all channel mute above 175 o c on falls below 150 o c off hysteresis 25 o c table3. thermal shut down 1 . btl driver
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 13 - www.interpionsemi.com application summary (continued) - voltage gain of each channel 4-ch input resistances are as follows, ch1, ch3, ch4 : 11k ohm ch2 : 7.5k ohm so, the voltage gain is calculated as following equation. 55 13420log|| 11 k gv rk = + 110 220log|| 7.5 k gv rk = + * r is an external resistor which is connected to input pins (pin17,18,20,22) - power supply voltage IP9001 has two kinds of power supply pins. one is power supply for output stage(pin36), the others are signal power supply for pre driver(pin12, pin15). all power supply pins should be attached by-pass capacitor with each other. - output voltage IP9001 has internal buck/boost control circuit and the output voltage is calculated as follows, figure1. output voltage set up method 13 13 1(1) 24 24 rr rr vccvref rr rr + =+ + * vref =1.2v * r1 : external resistor * r2 : external resistor * r3 : 35k ohm * r4 : 21k ohm 335 1(1)1.2(1)3.2 421 rk vccdefaultvrefv rk =+=+= if there is no external resistor, then default vcc1 value is as follows, 2 . dc/dc converter
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 14 - www.interpionsemi.com application summary (continued) - short circuit protection when the output voltage of error amp holds h status, then IP9001 starts charging to csprt with constant current isprt . if the voltage of the csprt rises above 1.2v, then the dc/dc converter circuit is disabled. disable time is dependent on the external capacitor csprt , threshold voltage vth , and internal constant current source isprt . * vth=1.2v, isprt=10ua (sec) vth tcsprt isprt = - soft start circuit IP9001 accomplishes soft-start-function by attaching external capacitor between dead pin and gnd. maximum duty can be changed by adding external resistor to dead pin (pin 4). (intre)(sec) tcdeadrxt =+ * rint=65k ohm, rext=external resistor - power off function when the input voltage of off(pin40) is low, then IP9001 starts charging to csprt with constant current ioff . if the voltage of the csprt rises above 1.2v, then the dc/dc converter circuit is disabled. disable time is dependent on the external capacitor csprt , threshold voltage vth , and internal constant current source ioff . * vth=1.2v, ioff=20ua (sec) vth tcsprt ioff = - over voltage protection when the sensing voltage of sens(pin1) is above 8.4v, then IP9001 starts charging to csprt with constant current ihv . if the voltage of the csprt rises above 1.2v, then the dc/dc converter circuit is disabled. disable time is dependent on the external capacitor csprt , threshold voltage vth , and internal constant current source ihv . * vth=1.2v, ioff=20ua (sec) vth tcsprt ihv =
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 15 - www.interpionsemi.com application summary (continued) power supply driving circuit detects a maximum output voltage among the 4-ch output pins, and then control external pnp tr to reduce the power consumption. this buck converter consists of external pnp tr, schottky barrier diode, inductor, and capacitors. when the sensing voltage of sens(pin1) falls below detecting voltage, then emp(pin35) goes from high level to low level. the detector voltage has 50mv hysteresis. according to the sel(pin42) voltage level, the detector voltage varies as following table, 3 . pwm power supply driving circuit figure2. pwm power supply driving circuit 4 . empty detector circuit sel detector voltage return voltage low 2.2v typ 2.25v typ high-impedance 1.8v typ 1.85v typ table4. emp detector voltage
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 16 - www.interpionsemi.com application summary (continued) when the output voltage of the dc/dc converter reaches 90% of the vcc1, then reset goes from low to high level and amute goes from high to low level. hysteresis voltage of each pin is 50mv 5 . reset circuit 6 . charging circuit figure3. reset & amute IP9001 has a charging circuit and it is independent from any other circuit. its power supply pin is chgvcc which is directly connected to adapter. battery charging current is controlled by changing rchg (between rchg(pin33) and gnd). it also has an independent tsd circuit which has shut down temperature of 175 o c and the hysteresis temperature is 25 o c
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 17 - www.interpionsemi.com test circuit
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 18 - www.interpionsemi.com test circuit (continued)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 19 - www.interpionsemi.com s e n s v b a t r e s e t d e a d d r v e a m p o e a m p i s p r t c t n . c o p i n - b r e a k 1 d o 4 r d o 4 f d o 3 r d o 3 f p g n d d o 2 f d o 2 r d o 1 f d o 1 r r c h g v c c 1 v c c 2 v c l k a b s w 8 v v s e l s v s e l i s e l s a b s w 9 v a i a m u v a m u s v a m u i a m u s a b s w 5 v a i e m p v e m p s v e m p i e m p s b s w 6 a c v 5 1 k v e m p r a b s w 7 v c c 1 test circuit (continued)
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 20 - www.interpionsemi.com typical application circuit
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 21 - www.interpionsemi.com internal circuit pin no pin name internal circuit 1 sens 3 reset 34 dead
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 22 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 5 drv 6 eampo 7 eampi
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 23 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 8 sprt 9 ct 11,14 opin-, opin+
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 24 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 13 opout 16 vref 17, 18, 20, 22 in3, in4, in2, in1
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 25 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 19 mute34 21, 23 mute2, brake1 24, 25, 26, 27, 29, 30, 31, 32 do4r, do4f, do3r, do3f, do2f, do2r, do1f, do1r
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 26 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 33 rchg 34 amute 35 emp
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 27 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 37 psw 38 clk 39 start 38
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 28 - www.interpionsemi.com internal circuit (continued) pin no pin name internal circuit 40 off 42 sel 44 pswr
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 29 - www.interpionsemi.com electrical characteristics curves 12345678 2.0 2.5 3.0 3.5 4.0 4.5 5.0 vbat=sweep vcc1=vcc2=3.2v pvcc=0.45v vchg=4.5v vref=1.6v mute34=high mute2=brake1=low rl=open vbat (v) ibat(ma) ibat vs vbat 2.02.53.03.54.04.55.05.56.0 3 4 5 6 7 8 9 10 icc1+icc2(ma) vcc1=vcc2 (v) vcc1=vcc2=sweep vbat=2.4v pvcc=0.45v vchg=0v vref=1.6v mute34=high mute2=brake1=low rl=open icc vs vcc
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 30 - www.interpionsemi.com electrical characteristics curves (continued) 345678 0.0 0.5 1.0 1.5 2.0 vchg (v) ichg(ma) ichg vs vchg vchg=sweep vcc1=vcc2=vbat=0v pvcc=vref=0v 0 100200300400500600 0 100 200 300 400 500 600 io=sweep vcc1=vcc2=3.2v vbat=2.4v pvcc=3.2v vref=1.6v vin=3.2v mute34=high mute2=brake1=low io (ma) vsat(mv) vsat vs io
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 31 - www.interpionsemi.com electrical characteristics curves (continued) -40-20 0 20406080 0 1 2 3 4 5 temperature=sweep vbat=2.4v vcc1=vcc2=3.2v pvcc=3.2v vref=1.6v mute34=high mute2=brake1=low rl=open ibat (ma) temperature ibat vs temperature -40-20 0 20406080 0 1 2 3 4 5 icc2 icc1 icc2 (ma) icc1 (ma) temperature temperature=sweep vbat=2.4v vcc1=vcc2=3.2v pvcc=3.2v vref=1.6v mute34=high mute2=brake1=low rl=open icc vs temperature
IP9001 4-ch motor drive ic for portable cdp september. 2003 (rev.0) - 32 - www.interpionsemi.com dimension : milimeters package dimension

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