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at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 1 features ? independent 5-channel h-bridge ? built-in 4 constant voltage drivers, all of those drivers with brake function. ? built-in 1 constant current drivers with brake function. ? low on-resistance <1.20 ? (typ.) ? low voltage operation ? built-in thermal shutdown function ? qfn-32 package general description the at5558 is a 5-channel h- b ridge drivers ic for dsc mo tor application. it b uilt in with 4 constant voltage drivers and 1 constant current bloc k to drive auto-focus, zoom, shutter, auto-exposure motors. applications ?dsc motor driver * protected by u.s. patent #6,943,514 block dia g ram thermal shutdown and uvlo vcc vm1 out1a out1b out2a out2b pgnd1 vm2 out3a out3b out4a out4b in2a in1a in2b in1b pgnd2 in5a in5b in4a in3a in4b in3b vc3 vref vc4 vc12 logic block vm3 out5a out5b vref pre driver rfg h-bridge h-bridge h-bridge h-bridge h-bridge vc5 agnd aimtron reserves the right without notice to change this circuitry and specifications.
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 2 pin configuration rfg vc5 vref ps in4a in5a in5b in4b vcc vc4 vc3 vc12 agnd out1b out1a vm1 in2b in1b in1a out3b out5a out5b vm3 out4a out4b vm2 out3a out2b in2a in3a in3b out2a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 exposed pad* *the exposed pad must be connected to gnd. ordering information part number package marking at5558n_gre qfn32, green at5558n
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 3 pin description pin no. symbol i/o description 1 vc5 i voltage for current limit control of the constant current driver5 2 vref o reference voltage being divided for vc12, 3, 4, 5 to individually use 3 ps i power save which can force all outputs to become open state 4 vcc p power supply 5 in4a i it combines in4a to decide th e state of the constant current driver4 6 in4b i it combines in4b to decide the state of the constant voltage driver4 7 in5a i it combines in5a to decide th e state of the constant current driver5 8 in5b i it combines in5b to decide th e state of the constant current driver5 9 rfg o voltage for current limit control of the constant current driver5 10 out5a o h-bridge output terminal 5a of the constant voltage driver5 11 out5b p h-bridge output terminal 5b of the constant voltage driver5 12 vm3 p power supply for channel 5 13 out4a o h-bridge output terminal 4a of the constant voltage driver4 14 out4b o h-bridge output terminal 4b of the constant voltage driver4 15 vm2 p power supply for channel3, 4 16 out3a o h-bridge output terminal 3a of the constant voltage driver3 17 out3b o h-bridge output terminal 3b of the constant voltage driver3 18 in1a i it combines in1a to decide the state of the constant voltage driver1 19 in1b i it combines in1b to decide the state of the constant voltage driver1 20 in2a i it combines in2a to decide the state of the constant voltage driver2 21 in2b i it combines in2b to decide the state of the constant voltage driver2 22 in3a i it combines in3a to decide the state of the constant voltage driver3 23 in3b i it combines in3b to decide the state of the constant voltage driver3 24 out2a o h-bridge output terminal 2a of the constant voltage driver2 25 out2b o h-bridge output terminal 2b of the constant voltage driver2 26 vm1 p power supply for channel 1, 2 27 out1a o h-bridge output terminal 1a of the constant voltage driver1 28 out1b o h-bridge output terminal 1b of the constant voltage driver1 29 agnd g gnd 30 vc12 i it is used to control the output voltage of constant voltage driver1, 2 31 vc3 i it is used to control the output voltage of constant voltage driver3 32 vc4 i it is used to control the output voltage of constant voltage driver4 bottom pgnd1, 2 g gnd
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 4 absolute maximum ratings item symbol ratings unit supply voltage vcc vcc +6.0 v supply voltage vm vm +6.0 v control input voltage vin vcc v power dissipation pd 1000 mw operating temperature topr -20 ~ +85 c junction temperature tj ~ +150 c storage temperature range tstg -55 ~ +150 c maximum output current iout 800 ma hbm 2 kv esd susceptibility * 2 mm 200 v 1. stresses beyond those listed under ?absolute maxi mum ratings? may cause permanent damage to the device. these are stress ratings only, and function al operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions fo r extended periods may affect device reliability . 2. device are esd sensitive. handling precautio n recommended. the human body model is a 100pf capacitor discharged through a 1.5k ? resistor into each pin. recommended operating conditions(ta=25 c) item symbol ratings unit supply voltage vcc vcc +2.5 ~ +5.5 v supply voltage vm1,2,3 vm1,2,3 +1.9 ~ +5.5 v control input voltage vin 0 ~ vcc v h bridge output curren t iout -400 ~ +400 ma logic input frequency fin 0 ~ 100 khz
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 5 electrical characteristic (ta=25 c , vcc=3.0v, vm1=vm2=vm3=5v, 5 ? r r r r l4 l3 l2 l1 1 = = = ? r l5 10 = ) values parameter symbol condition min. typ. max. unit whole circuits circuit current1 at standby iccst ps=l - 1 10 a power save h level input voltage vpsh 2.0 - - v l level input voltage vpsl - - 0.8 v h level input bias current ipsh ps=3v - 5 20 a ? control input h level input voltage vinh 2.0 - - v l level input voltage vinl - - 0.8 v h level input bias current iinh vin=3v - 5 20 a ? uvlo uvlo voltage vuvlo 1.8 2.0 2.2 v vref vref output voltage vref iout=0 ~ 1ma 0.98 1.00 1.02 v constant voltage driver1, 2 output on resistance ron io=+-200ma, sum of on-resistance 1.20 1.75 ? output constant voltage vo1 vc12=0.3v, rload=7.5 ?
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 6 constant voltage driver3, 4 output on resistance ron io=+-200ma, sum of on-resistance 1.20 1.75 ? output constant voltage vo2 vc3=vc4=0.3v, rload=7.5 ? constant current driver5 output on resistance ron io=+-300ma, sum of on-resistance - 1.00 1.45 ? output limit voltage vol rfg=1 ? thermal protection circuit protection temperature tsd 150 c
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 7 input-output logic table constant-voltage or satura tion control (channel 1, 2) input output in1a in1b in2a in2b out1a out1b out2a out2b mode l l l l z z z z standby h l l l h l z z h l h l h l h l l l h l z z h l l h h l l h h l l h l l l h z z l h l h l h l h l l l h z z l h h l l h h l l h 1,2 phase excitation h h l l h h l l brake constant-voltage or satura tion control (channel 3, 4) input output in3a in3b in4a in4b out3a out3b out4a out4b mode l l l l z z z z standby h l l l h l z z h l h l h l h l l l h l z z h l l h h l l h h l l h l l l h z z l h l h l h l h l l l h z z l h h l l h h l l h 1,2 phase excitation h h l l h h l l brake constant-current control or sa turation control (channel 5) input output mode in5a in5b out5a out5b l l z z standby h l h l l h l h sh&ae h h l l brake
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 8 application reference 1 m_vcc=4v mcu 75k 22k 43k 51k 0.1uf 2 in2a in1a in2b in1b in5a in5b in4a in3a in4b in3b ps vcc agnd out1a out1b out2a out2b out3a out3b out4a out4b out5a out5b vm1 at5558 vc3 vref vc4 vc12 vc5 rfg 0.1uf aperture af zoom shutter vm2 vm3 47uf ps : h active l stand-by pgnd1 pgnd2 m 0.01~0.1uf (option) 0.01~0.1uf (option) osicllation preventive capacitor 0.01~0.1uf (option) 0.01~0.1uf (option) 0.01~0.1uf (option) saturation mode j ch1&ch2&ch4 i o on i o i r vm v ? = , 4 2 1 , , = i constant voltage j ch3 3 3 3 5 0 5 o on c o i r v v ? = . constant current j ch5 rfg v i c o / 5 5 =
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 9 application reference 2 m_vcc=5v mcu 75k 20k 25k 91k 0.1uf 1 in2a in1a in2b in1b in5a in5b in4a in3a in4b in3b ps vcc agnd out1a out1b out2a out2b out3a out3b out4a out4b out5a out5b vm1 at5558 vc3 vref vc4 vc12 vc5 rfg 0.1uf iris af zoom shutter vm2 vm3 47uf ps : h active l stand-by pgnd1 pgnd2 m 0.01~0.1uf (option) 0.01~0.1uf (option) osicllation preventive capacitor 0.01~0.1uf (option) 0.01~0.1uf (option) 0.01~0.1uf (option) 3.3k 100k 3.3k 100k constant voltage j ch1&ch2 i o on c i o i r v v ? = 5 0 5 12 . , 2 1 , = i ch3&ch4 i o on i c i o i r v v ? = 5 0 5 ., 4 3 , = i constant current j ch5 rfg v i c o / 5 5 =
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 10 application reference 3 m_vcc=5v mcu 75k 33k 0.1uf 1.8 in2a in1a in2b in1b in5a in5b in4a in3a in4b in3b ps vcc agnd out1a out1b out2a out2b out3a out3b out4a out4b out5a out5b vm1 at5558 vc3 vref vc4 vc12 vc5 rfg 0.1uf iris af zoom shutter vm2 vm3 47uf ps : h active l stand-by pgnd1 pgnd2 m 0.01~0.1uf (option) 0.01~0.1uf (option) osicllation preventive capacitor 0.01~0.1uf (option) 0.01~0.1uf (option) 0.01~0.1uf (option) 7.5k 30k constant voltage j ch1&ch2 i o on c i o i r v v ? = 5 0 5 12 ., 2 1 , = i ch3&ch4 i o on i c i o i r v v ? = 5 0 5 . , 4 3 , = i constant current j ch5 rfg v i c o / 5 5 =
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 11 pc board layout 1. due to pgnd1 and pgnd2 are bound to the bottom of the package, it should be noted that the bottom must be laid together with gnd. 2. on the pcb, a hole should be placed in th e location of the package bottom for debug issue.
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 12 package description qfn32 min. nom. max. min. nom. max. a 0.700.750.80 27.629.531.5 a1 0 0.02 0.05 0 0.79 1.97 a3 b 0.18 0.25 0.30 7.1 9.8 11.8 d 4.90 5.00 5.10 193 197 201 d2 1.25 2.70 3.70 49 106 146 e 4.90 5.00 5.10 193 197 201 e2 1.25 2.70 3.70 49 106 146 e k 0.2 - - 7.9 - - l 0.3 0.4 0.5 11.8 15.7 19.7 0.50 bsc 19.7 bsc symbol dimension (mm) dimension (mil) 0.2 ref 7.9 ref
at5558 preliminary product information 5-channel dsc motor driver 7f, no.9,park avenue. ii, science-based indu strial park, hsinchu 300,taiwan, r.o.c. tel: 886-3-563-0878 fax: 886-3-563-0879 www: http://www.aimtron.com.tw 06/10/05 rev:1.1 email: service@aimtron.com.tw 13 reflow profiles sn-pb eutectic assembly pb-free assembly profile feature large body pkg. thickness 2.5mm or pkg. volume 350mm 3 small body pkg. thickness <2.5mm or pkg. volume <350mm 3 large body pkg. thickness 2.5mm or pkg. volume 350mm 3 small body pkg. thickness 2.5mm or pkg. volume 350mm 3 average ramp-up rate (t l to t p ) 3 c/second max. 3 c/second max. preheat -temperature min(tsmin) -temperature max (tsmax) -time (min to max)(ts) 100 c 150 c 60-120 seconds 150 c 200 c 60-180 seconds tsmax to t l -ramp-up rate 3 c/second max. time maintained above: -temperature (t l ) -time (t l ) 183 c 60-150 seconds 217 c 60-150 seconds peak temperature(t p ) 225+0/-5 c 240+0/-5 c 245+0/-5 c 250+0/-5 c time within 5 c of actual peak temperature (t p ) 10-30 seconds 10-30 seconds 10-30 seconds 20-40 seconds ramp-down rate 6 c/second max. 3 c/second max. time 25 c to peak temperature 6 minutes max. 8 minutes max. * all temperatures refer to topside of the package, measured on the package body surface.

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