AT5668 preliminary product information 5-channel motor driver for dvd/vcd 2f, no.10, prosperity rd. ii, science-based industrial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 http://www.aimtron.com.tw fax: 886-3-563-0879 email: service@aimtron.com.tw 1 features B 4 channels of dc motor btl driver B 1 channels forward/reverse control dc motor driver B built-in suspension function. B built-in 1-channel opa. B built-in 1-channel comparator. B built-in thermal shutdown circuit. B operating voltage: 4.5v~13.2v applications cd-rom/dvd-rom/cd-rw drives dvd player. description the AT5668 is a 5-channel btl driver ic. two of them can drive dc mo tors and two can drive coils, such as the focus and tracking actuators of a cd-rom/dvd-rom/dvd-player system, with current feedback. it also built-in one channel bi-direction dc motor driver for tray. block diagram aimtron reserves the right without notice to change this circuitry and specifications.
AT5668 preliminary product information 5-channel motor driver for dvd/vcd 2f, no.10, prosperity rd. ii, science-based industrial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 http://www.aimtron.com.tw fax: 886-3-563-0879 email: service@aimtron.com.tw 2 pin descriptions pin no . pin name function 1 in1 ch1(focus coil) input 2 cp1n comparator negative input 3 cp1p comparator positive input 4 in2 ch2(sled driver) input 5 cp1o comparator output 6 fwd ch5 forward input 7 rev ch5 reverse input 8 vcc1 power supply 1 9 out5- ch5(tray driver) output(-) 10 out5+ ch5(tray driver) output(+) 11 out2+ ch2(sled driver) output (+) 12 out2- ch2(sled driver) output (-) 13 out1- ch1(focus coil) output (-) 14 out1+ ch1(focus coil) output (+) 15 out4+ ch4(tracking coil) output (+) 16 out4- ch4(tracking coil) output (-) 17 out3+ ch3(loader) output (+) 18 out3- ch3(loader) output (-) 19 vcc2 power supply 2 20 op2o error amplifier output 21 vctl ch5 speed control input 22 gnd ground 23 in3 ch3(loader) input 24 op2n error amplifier negative input 25 op2p error amplifier positive input 26 in4- ch4 (tracking driver) input 27 vbias vref input pin 28 mute_1_2_3_4 mute control for ch1,ch2,ch3,ch4 pin out
AT5668 preliminary product information 5-channel motor driver for dvd/vcd 2f, no.10, prosperity rd. ii, science-based industrial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 http://www.aimtron.com.tw fax: 886-3-563-0879 email: service@aimtron.com.tw 3 ordering information part number package marking AT5668h 28-pin hsop AT5668h power dissipation (ta = 25 o c) condition: mount on 50x50 mm 2 t=1.0mm paper phenol pcb absolute maximum ratings (ta = 25 o c) parameter symbol limits unit power supply voltage vcc1,2 13.5 v power dissipation p d 1.7 w operating temperature t opr -30~+80 o c storage temperature t stg -55~+150 o c note:* 1. power dissipation reduces 13.6mw / c for using above ta=25c 2. do not exceed pd and soa. recommended operating conditions (ta = 25 o c) parameter symbol limits unit vcc1 4.0~13.2 v power supply voltage vcc2 4.0~vcc1 v
AT5668 preliminary product information 5-channel motor driver for dvd/vcd 2f, no.10, prosperity rd. ii, science-based industrial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 http://www.aimtron.com.tw fax: 886-3-563-0879 email: service@aimtron.com.tw 4 electrical characteristics ( unless otherwise noted, ta = 25 o c,vcc1 =12v, vcc2 =5v, vbias=2.5v, r l1 = r l4 =8 , r l2 = r l3 =12 ) parameter symbol min. typ. max. unit conditions quiescent current i qc -1830mano load mute quiescent current i qsb - - 5 ma ch5 ,opa,comp. active mute on voltage v sbon 0-0.5v mute off voltage v sboff 2.0 - - v |
