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( isp 5888 , datasheet, version 1 .0 ) 5 - channel btl motor dri ve ic technical d ocument series (img_doc_ds_ isp 5888_v 1 .0 ) confidential imagis semiconductor www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 2 / 16 - d ocument history date contents 2011 - 0 9 - 2 9 initial brief datasheet release notice this document is intended only to assist the reader in the use of the product. imagis co., ltd. shall not be liable for any errors, or any incorrect application of this documentation. and, this document may change without notices. address #443 - 766, 3f - 301 gyeonggi r&db center, #906 - 5, iui - dong, yeongtong - gu suwon - city, gyeonggi - do, korea tel : +82 - 31 - 888 - 5280 fax : +82 - 31 - 888 - 5270 homepa ge: http://www.imagis.co.kr www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 3 / 16 - 1. overview 1.1 description the isp 5888 contains 5 channels voltage - type btl drivers for tracking and focus, sled, spindle motors and it contains also 1 channel of bi - directional tray motor. furthermore it embraces 2 independent precision voltage regulators with adjustable range from 1.24v to 4v. it supports various applications with pb free and heat - sink package 1.2 features ? wide dynamic range (4.0v (typ.) when vcc = 8v, pvcc =5v, and rl = 8 ). ? level shift circuit on chip ? thermal shutdown circuit on chip. ? mute mode builtin. ? two regulator controllers built in. five drivers building : dual actuator drivers, sled motor driver, spindle driver and tray in / out driver. 1.3 applicatio n ? cd - player ? cd - rom ? dvd - player 1.4 package type 28ssoph - 375 1.5 order ing information isp 5888 t : tube b alnk : bulk tr : tape and reel tape and reel option h ; 28ssoph package type h : 28ssoph lead free option h ; 28ssoph blank : not lead free l : lead fre e www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 4 / 16 - 1.6 pin configuration . figure 1.6 pin configuration of is p 5888 (top view) www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 5 / 16 - 1.7 pin description table 1. 7 pin desc ription www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 6 / 16 - 1.8 internal block diagram figure 1. 8 internal block diagram www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 7 / 16 - 1.9 absolute maximum ratings parameter symbol limits u nits supply voltage vcc1/vcc2 13.5 v power dissipation pd 1.7 w operate temperature range topr - 35 ~ +85 o c storage temperature range tstg - 55 ~ +150 o c esd mm 300 v esd hbm 3000 v [ pd ] when mounted on a 70mm70mm1.6mm glass epoxy board. reduced by 13.6mw for each increase in ta of 1 [ tstg ] should not exceed pd or soa and tj=150 values table 1. 9 a bsolute maximum ratings 1.10 recommended operating conditions (ta = 25 ) parameter symbol limits units power supply voltage vcc1 4.3 ~ 13.2 v vcc2 4.3 ~ vcc1 v table 1. 10 recommended operating conditions www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 8 / 16 - 2. electrical characteristics ( unless otherwise s pecified ta=25 , vcc1=12v, vcc2=5v, bias=2.5v, rl=8 /12/20/45 ) parameter symbol test conditions min typ max unit quiescent current iqc - 30 - ma voltage for mute on vston 0 - 0.5 v voltage for mute off vstoff 2 - 5 v actuator driver : focus , tracking output offset voltage voo 50 - 50 mv maximum output voltage vom 12 load 3.6 4 - v voltage gain gv vin=bias+0.2vpp ac @1khz 21.5 23.5 25.5 db sled motor driver output offset voltage voosl - 100 - 100 mv maximum output voltage vomsl 2 0 load 7.5 9 - v voltage gain gvsl vin=bias+0.2vpp ac @1khz 18.0 20.0 22.0 db spindle motor driver output offset voltage voold - 50 - 50 mv maximum output voltage vomld 8 load 3.6 4 - v voltage gain gvld vin=bias+0.2vpp ac @1khz 13.5 15.5 17.5 db tray motor driver output saturation voltage1 vsat1 upper + lower saturation il=200ma 0.7 1.1 1.5 v output saturation voltage between f/r vsat1 output saturation voltage1 between fwd and rev - - 0.1 v output saturation voltage2 vsat2 upper + lower saturation il=500ma 1.0 1.55 2.2 v output adjustable gain on Dh side voltage vvtrh vctl=2v 7.4 9.2 11 db www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 9 / 16 - parameter symbol test conditions min typ max unit tray motor driver input logic high level input voltage vih 1.5 - vcc v low level i nput voltage vil - 0.3 - 0.5 v high level input current iih vfwd=vrev=5v - 180 270 ua regulator output voltage vreg il=500ma 1.5 - 4 v load regulation vld il=0~500ma - 50 - 50 mv line regulation vle vcc=4.5~8v,,il=500ma - 25 - 25 mv [ r egulator ] it is based on sta353 pnp application. vreg can be set to other voltage with 5% deviation (output voltage : 1.5v ~ 4v). table 2 electrical characteristics 3. application information 3.1 thermal shut down circuit figure 3.1 thermal shut down circuit this ic has a buil t in thermal shutdown circuit that mutes the output current when the chip temperature reaches 175c (typ.). the hysteresis is set to 25 c (typ.), so the driver circuits start up again when the chip t emperature falls to 150c (typ.). www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 10 / 16 - 3. 2 bt l driver circuits [ focus, tracking, sled, spindle ] figure 3.2 btl driver circuits btl driver circuits are composed of vi - converter, level shifter and output power amp. vi - converter converts voltage of vin into current [iconv ] iconv = (v in C bias ) / r1[10k ] closed loop voltage gain calculation va(+) = (r2iconv ) + pref va( - ) = ( - r5iconv) + pref vo(+) = va(+)(1 + r4/r3 ) vo( - ) = va( - )( 1 + r7/r6 ) ( * r2 = r5 , r3 = r6, r4 = r7 * ) focus, tracking closed loop voltage gain [ r2 = 25k , r3 = 10k , r4 = 20k ] gain = 20 log [{ vo(+) - vo( - ) } / (vin - bias) ] = 20 log [{ va(+)( 1 + r3/r4 ) - va( - )( 1 + r6/r7 ) } / ( vin C bias ) ] = 20 log [{(r2iconv ) + pref }( 1 + r4/r3 )] C [{( - r5iconv) + pref }( 1 + r7/r6 )] - (vin C bias ) = 20 log [2(25k/10k){1+(20k/10k)} ] = 23.5 [db] sled closed loop voltage gain [r2 = 25k , r3 = 10k , r4 = 10k ] gain = 20 log [2 (25k/10 k){1+(10k/10k)} ] = 20 [db] spindle closed loop voltage gain [r2 = 15k , r3 = 10k , r4 = 10k ] gain = 20 log [2 (25k/10k){1+(10k/10k)} ] = 15.5 [db] www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 11 / 16 - 3. 3 regulator circuit figure 3.3 regulator circuit the reference volta ge (1.25v) is generated by the internal circuit (band gab reference). it needs to attach an external power tr [pnp power tr : sta353*] the output voltage of the regulator is calculated as follows. vout = (1+ r1/r2) 1.25 3.3v [r1: 16.5k / r2 : 10k] 2.5v [r1: 10k / r2 : 10k] www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 12 / 16 - 3. 4 tray driver logic input figure 3.4 tray driver logic input input circuit of 6,7 pin, consider the driver uppe r and lower unable ducting at the same time, be sure to do it, themotor forward and reverse input by the open mode, we recommend that the time period of open state is longer than 10msec output high level voltage( vol+, vol - ) varied with the motor co ntroller, it can output 3 times voltage of 21pin, and in high level. in this time, the low level voltage input power pipe as the output saturation voltage. www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 13 / 16 - 4. electrical characteristics curves graph 4. electrical characteristics curves www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 14 / 16 - 5. test circuit figure 5. test circuit www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 15 / 16 - 6. package dimension figure 6. package dimension www.datasheet.net/ datasheet pdf - http://www..co.kr/
imagis co., ltd. isp5 888 confidential 2011 - 09 - 29 - 16 / 16 - notice this d ocument is intended only to assist the reader in the use of the product. imagis co., ltd. shall not be liable for any errors, o r any incorrect application of this documentation. and, this document may change without n otices. address #443 - 766, 3f - 301 gyeonggi r&db center, #906 - 5, iui - dong, yeongtong - gu suwon - city, gyeonggi - do, korea tel : +82 - 31 - 888 - 5280 fax : +82 - 31 - 888 - 5270 h omepage: http://www.imagis.co.kr www.datasheet.net/ datasheet pdf - http://www..co.kr/

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