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specifications of any and all sanyo semiconductor co.,ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer ' s products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer ' s products or equipment. any and all sanyo semiconductor co.,ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. the products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage conditi on (temperature, operation time etc.) prior to the intended use. if there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. o1911 sy/o2710 sy/50710 sy / 12408 ms 20071120-s00004 / 32807 ms pc / 71906 ms ot 20060512-s00004 no.a0438-1/26 LV8044LP lv8044lq overview the LV8044LP and lv8044lq is a 6-channel motor driver ic for digital still camera. functions ? two microstep drive h-bridge driver channels. ? two microstep drive/pwm saturated drive switchable h-bridge driver channels. ? two constant-current drive h-bridge driver channels. ? drive mode switchable between 2-phase, 1-2 phase full torque, 1-2 phase, and 4w1-2 phase (channels 1, 2, 3, and 4). ? microstep drive step advance controlled by a single step signal input (channels 1, 2, 3, and 4). ? ability to set the hold current to one of four levels (channels 1, 2, 3, and 4). ? ability to set the constant-current reference voltage to one of 16 levels from the serial data (channels 5 and 6). ? eight-bit 3-wire serial control. ? three on-chip photosensor driver circuits. specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit power supply voltage 1 v m max 6.0 v power supply voltage 2 v cc max 6.0 v output peak current i o peak each ch tw 10ms, duty 20% 600 ma output continuous current i o max each ch 400 ma allowable power dissipation 2 pd max LV8044LP with substrate * 1.4 w lv8044lq with substrate * 1.35 w operating temperature topg -20 to +85 c storage temperature tstg -55 to +150 c *: with 40mm 50mm 0.8mm glass epox y substrate (four-layer substrate). caution 1) absolute maximum ratings represent the va lue which cannot be exceeded for any length of time. caution 2) even when the device is used within the range of absolu te maximum ratings, as a result of continuous usage under hig h temperature, high current, high voltage, or drastic temperature change, the reliability of the ic may be degraded. please contact us for the further details. orderin g number : ena0438e bi-cmos ic for digital still camera 6-channel motor driver ic
LV8044LP,lv8044lq no.a0438-2/26 recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit power supply voltage range 1 v m 2.7 to 5.5 v power supply voltage range 2 v cc 2.7 to 5.5 v logic input voltage range v in 0 to v cc +0.3 v step frequency f step step1, step2 to 64 khz pwm frequency f pwm step3, step4 to 100 khz electrical characteristics at ta = 25 c, v m = 5v, v cc = 3.3v parameter symbol conditions ratings unit min typ max standby supply current i stn st = ?l? 1.0 a motor supply current i m st = ?h?, pwm3 = pwm4 = ?h?, in51 = in61 = ?h?, no load 50 100 a logic supply current i cc st = ?h?, pwm3 = pwm4 = ?h?, in51 = in61 = ?h?, no load 23 4ma v cc low-voltage cut voltage v th v cc 2.1 2.35 2.6 v low-voltage hysteresis voltage v th his 100 150 200 mv thermal shutdown temperature tsd design guarantee 150 180 200 c thermal hysteresis width tsd design guarantee 40 c microstep driver (channels 1, 2, 3, and 4) output on resistance ronu i o = 400ma, upper on resistance 0.7 0.8 rond i o = 400ma, lower on resistance 0.5 0.6 output leak current i o leak1 1.0 a diode forward voltage 1 v d 1 id = -400ma 0.9 1.2 v logic pin input current i in l v in = 0v (st, step1, step2) 1.0 a i in h v in = 3.3v (st, step1, step2) 20 33 50 a logic input ?h? level voltage v in h st, step1, step2 2.5 v logic input ?l? level voltage v in l st, step1, step2 1.0 v current selection reference voltage level 4w1-2 phase vstep16 step 16 (initial level: the channel 1 comparator level) 0.185 0.200 0.215 v vstep15 step 15 (initi al+1) 0.185 0.200 0.215 v vstep14 step 14 (initi al+2) 0.185 0.200 0.215 v vstep13 step 13 (initi al+3) 0.176 0.193 0.206 v vstep12 step 12 (initi al+4) 0.170 0.186 0.200 v vstep11 step 11 (initi al+5) 0.162 0.178 0.192 v vstep10 step 10 (initi al+6) 0.154 0.171 0.184 v vstep9 step 9 (initi al+7) 0.146 0.163 0.176 v vstep8 step 8 (initi al+8) 0.129 0.148 0.159 v vstep7 step 7 (initi al+9) 0.113 0.131 0.143 v vstep6 step 6 (initial +10) 0.097 0.115 0.127 v vstep5 step 5 (initial +11) 0.079 0.097 0.109 v vstep4 step 4 (initial +12) 0.062 0.079 0.092 v vstep3 step 3 (initial +13) 0.044 0.06 0.074 v vstep2 step 2 (initial +14) 0.024 0.04 0.054 v vstep1 step 1 (initial +15) 0.006 0.02 0.036 v 1-2 phase vstep16 step 16 (initial level: the channel 1 comparator level) 0.185 0.200 0.215 v vstep8 step 8 (initi al+1) 0.129 0.148 0.159 v 1-2 phase (full torque) vstep16 step 16 (initial level: the channel 1 comparator level) 0.185 0.200 0.215 v vstep8 step 8 (initi al+1) 0.185 0.200 0.215 v 2 phase vstep8 step 8 0.185 0.200 0.215 v continued on next page.
LV8044LP,lv8044lq no.a0438-3/26 continued from preceding page. parameter symbol conditions ratings unit min typ max chopping frequency fchop1 104 130 156 khz fchop2 52 65 78 khz fchop3 160 200 240 khz fchop4 80 100 120 khz current setting reference voltage vsen00 (d5, d6) = (0, 0) 0.185 0.200 0.215 v vsen01 (d5, d6) = (0, 1) 0.119 0.134 0.149 v vsen10 (d5, d6) = (1, 0) 0.085 0.100 0.115 v vsen11 (d5, d6) = (1, 1) 0.051 0.066 0.081 v constant-current drive (channels 5 and 6) output on resistance ronu i o = 400ma, upper on resistance 0.7 0.8 rond i o = 400ma, lower on resistance 0.5 0.6 output leak current i o leak 1.0 a diode forward voltage 1 v d 1 id = -400ma 0.9 1.2 v logic pin input current i in l v in = 0v, (in51, in52, in61, in62) 1.0 a i in h v in = 3.3v, (in51, in52, in61, in62) 20 33 50 a logic input ?h? level voltage v in h in51, in52, in61, in62 2.5 v logic input ?l? level voltage v in l in51, in52, in61, in62 1.0 v output constant current i out rload = 3 ,rf = 0.5 , internal standard = 0.2v 380 400 420 ma current setting reference voltage vref0 (d4, d5, d6, d7) = (0, 0, 0, 0) 0.285 0.30 0.315 v vref1 (d4, d5, d6, d7) = (1, 0, 0, 0) 0.19 0.20 0.21 v vref2 (d4, d5, d6, d7) = (0, 1, 0, 0) 0.18 0.190 0.2 v vref3 (d4, d5, d6, d7) = (1, 1, 0, 0) 0.171 0.180 0.189 v vref4 (d4, d5, d6, d7) = (0, 0, 1, 0) 0.161 0.170 0.179 v vref5 (d4, d5, d6, d7) = (1, 0, 1, 0) 0.156 0.165 0.173 v vref6 (d4, d5, d6, d7) = (0, 1, 1, 0) 0.152 0.160 0.168 v vref7 (d4, d5, d6, d7) = (1, 1, 1, 0) 0.147 0.155 0.163 v vref8 (d4, d5, d6, d7) = (0, 0, 0, 1) 0.143 0.150 0.158 v vref9 (d4, d5, d6, d7) = (1, 0, 0, 1) 0.137 0.145 0.152 v vrefa (d4, d5, d6, d7) = (0, 1, 0, 1) 0.133 0.140 0.147 v vrefb (d4, d5, d6, d7) = (1, 1, 0, 1) 0.128 0.135 0.142 v vrefc (d4, d5, d6, d7) = (0, 0, 1, 1) 0.123 0.130 0.137 v vrefd (d4, d5, d6, d7) = (1, 0, 1, 1) 0.114 0.120 0.126 v vrefe (d4, d5, d6, d7) = (0, 1, 1, 1) 0.104 0.110 0.116 v vreff (d4, d5, d6, d7) = (1, 1, 1, 1) 0.095 0.100 0.105 v photo-sensor drive circuit output saturation voltage vsat i o = -20ma 0.09 0.12 v serial data transfer pin logic pin input current i in l v in = 0v (sclk, sdata, stb) 1.0 a i in h v in = 3.3v (sclk, sdata, stb) 20 33 50 a logic input ?h? level voltage v in h sclk, sdata, stb 2.5 v logic input ?l? level voltage v in l sclk, sdata, stb 1.0 v minimum slck ?h? pulse width tckh 0.125 s minimum slck ?l? pulse width tckl 0.125 s minimum setup time (stb sclk rising edge) tsup1 0.125 s minimum setup time (sclk rising edge stb) tsup2 0.125 s minimum stb pulse width tstbw 0.125 s data setup time tds 0.125 s data hold time tdh 0.125 s maximum sclk frequency fclk 4mhz
LV8044LP,lv8044lq no.a0438-4/26 serial input switching ch aracteristics timing chart package dimensions unit : mm (typ) 3302a [LV8044LP] 3351 [lv8044lq] sanyo : uqlp40(5.0x5.0) 1 2 40 5.0 5.0 0.2 0.4 0.35 0.35 top view side view side view bottom view 0.65 max 0.0 nom (0.7) (0.7) sanyo : vqlp40(5.0x5.0) 0.2 0.4 5.0 5.0 0.85 max 0.0 nom 1 40 0.35 0.35 (0.7) (0.7) top view side view side view bottom view 2 tsup1 tckh sclk sdata stb tckl fclk tds tdh d0 d1 d2 d6 d7 tsup2 tstbw pd max -- ta 1.6 0 100 -20 1.2 1.4 0.8 0.4 80 60 40 20 0 0.73 [LV8044LP] ambient temperature, ta -- c allowable power dissipation, pd max -- w specified substrate: 40 50 0.8mm 3 glass epoxy four-layer board. 85 pd max -- ta 1.6 0 100 -20 1.2 1.35 0.8 0.4 80 60 40 20 0 0.70 [lv8044lq] ambient temperature, ta -- c allowable power dissipation, pd max -- w specified substrate: 40 50 0.8mm 3 glass epoxy four-layer board. 85
LV8044LP,lv8044lq no.a0438-5/26 pin assignment 30 1 21 20 pwm3/ step2 out3a 31 11 40 10 29 2 28 3 27 4 26 5 25 6 24 7 23 8 22 9 rf3 out3b out4a rf4 out4b out6a rf6 out6b pgnd2 out1a rf1 out1b out2a rf2 out2b out5a rf5 out5b pgnd1 pwm4 vm34 v cc stb sdata sclk step1 vm12 st in62 in61 vm6 sgnd pi1 pi2 pi3/mo vm5 in52 in51 19 32 18 33 17 34 16 35 15 36 14 37 13 38 12 39 LV8044LP lv8044lq top view the pin assignment of LV8044LP and lv8044lq is the same.
LV8044LP,lv8044lq no.a0438-6/26 block diagram output control logic pgnd2 pgnd1 out6b out6a rf6 vm6 output control logic out5b out5a rf5 vm5 out3b out3a output control logic out4b out4a rf4 rf3 vm34 current selection (4w1-2/1-2/ 1-2full/2) current selection (4w1-2/1-2/ 1-2full/2) out1b out1a output control logic out2b out2a rf2 rf1 vm12 current selection (4w1-2/1-2/ 1-2full/2) current selection (4w1-2/1-2/ 1-2full/2) monitor selector tsd lvs v cc sgnd step1 oscillator serial-to-parallel converter (8 bits) reference voltage selection circuit (0.1 to 0.3 v in 16 steps) reference voltage circuit (0.3 v) pi2 pi1 mo/pi3 in62 in61 in52 in51 pwm4 st stb sdata sclk step2 /pwm3 v cc
LV8044LP,lv8044lq no.a0438-7/26 pin function pin no. pin name function equivalent circuit 13 step1 channels 1/2 - step signal input 20 pwm3/step2 3ch pwm signal input / channels 3/4 - step signal input 19 pwm4 4ch pwm signal input 40 in51 channel 5 - logic input 1 39 in52 32 in61 channel 6- logic input 1 31 in62 14 sclk serial data transfer clock input 15 sdata serial data input 16 stb serial data latch pulse input 11 st chip enable 10 out1a 1ch outa output 7 out2a 2ch 21 out3a 3ch 24 out4a 4ch 4 out5a 5ch 27 out6a 6ch 8 out1b 1ch outb output 5 out2b 2ch 23 out3b 3ch 26 out4b 4ch 2 out5b 5ch 29 out6b 6ch 9 rf1 1ch current sensin g resistor connection 6 rf2 2ch 22 rf3 3ch 25 rf4 4ch 3 rf5 5ch 28 rf6 6ch 12 vm12 channels 1/2 - motor power supply 18 vm34 channels 3/4 - motor power supply 38 vm5 channels 5 - motor power supply 33 vm6 channels 6 - motor power supply 35 36 pi1 pi2 photosensor drive output continued on next page.
LV8044LP,lv8044lq no.a0438-8/26 continued from preceding page. pin no. pin name function equivalent circuit 37 pi3/mo photosensor drive output 3/position detection monitor 17 v cc logic system power supply 1 pgnd1 channels 1/2/5 - power system ground 30 pgnd2 channels 3/4/6 - power system ground 34 sgnd signal system ground serial data input specifications 1. serial data input setup first set stb low and then input the sdata and sclk si gnals. the sclk signal is not accepted when stb is high. sdata inputs the data in the order d0, d1, ... d6, d7. data is transferred on the rising edge of sclk and after all data has been transferre d, all the data is latched on the rising edge of stb. 2. timing with which the serial data settings are reflected in the output ? stp timing mode (applies to microstep driver settings) type 1: the hold, reset, and enable settings, as well as the reference voltage setting are reflected at the same time as the stb signal data latch operation. type 2: the forward/reverse (fr) and th e excitation setting mode (ms) setting that are set at stp setup are reflected in the output at the next clock rising edge after data latch. ? stb timing (applies to settings other than the above) type 1: the pwm driver, constant-current driver, pi, and othe r settings are reflected at the same time as the stb signal data latch operation.
LV8044LP,lv8044lq no.a0438-9/26 serial data truth table serial logic table (1) input setting mode description remarks set channel pi serial data reflection timing d0 d1 d2 d3 d4 d5 d6 d7 1ch 2ch 3ch 4ch 5ch 6ch step1 step2 stb 0 0 0 0 0 * * * channels 1 and 2 excitation mode selection 2 phase { { { 1 0 * * * 1-2 phase (full torque) 0 1 * * * 1-2 phase 1 1 * * * 4w1-2 phase * * 0 0 * channels 1 and 2 current reference voltage selection 100% (0.2v) { * * 1 0 * 67% (0.134v) * * 0 1 * 50% (0.1v) * * 1 1 * 33% (0.066v) * * * * 0 (dummy data) * * * * 1 1 0 0 0 * * * * 1/2ch energization direction cw (forward) { { { 1 * * * * ccw (reverse) * 0 * * * 1/2ch step hold cancel { * 1 * * * hold * * 0 * * 1/2ch counter reset reset * * 1 * * cancel * * * 0 * 1/2ch output enable output off * * * 1 * output on * * * * 0 (dummy data) * * * * 1
LV8044LP,lv8044lq no.a0438-10/26 serial logic table (2) input setting mode description remarks set channel pi serial data reflection timing d0 d1 d2 d3 d4 d5 d6 d7 1ch 2ch 3ch 4ch 5ch 6ch step1 step2 stb 0 1 0 0 0 * * * 3/4ch excitation mode selection 2 phase { { { 1 0 * * * 1-2 phase (full torque) 0 1 * * * 1-2 phase 1 1 * * * 4w1-2 phase * * 0 0 * 3/4ch current reference voltage selection 100% (0.2v) { * * 1 0 * 67% (0.134v) * * 0 1 * 50% (0.1v) * * 1 1 * 33% (0.066v) * * * * 0 3/4ch channels 3 and 4 saturation/microstep selection pwm * * * * 1 microstep 1 1 0 0 0 * * * 3ch energization direction (saturated mode) off { { 1 0 * * * out3a out3b 0 1 * * * out3b out3a 1 1 * * * brake * * 0 0 * 4ch energization direction (saturated mode) off { * * 1 0 * out4a out4b * * 0 1 * out4b out4a * * 1 1 * brake * * * * 0 3/4ch pwm decay (saturated mode) brake { { * * * * 1 standby mode 0 * * * * 3/4ch energization direction (microstep mode) cw (forward) { { { 1 * * * * ccw (reverse) * 0 * * * 3/4ch step hold (microstep mode) cancel { * 1 * * * hold * * 0 * * 3/4ch counter reset (microstep mode) reset * * 1 * * cancel * * * 0 * 3/4ch output enable (microstep mode) output off * * * 1 * output on * * * * 0 (dummy data) * * * * 1
LV8044LP,lv8044lq no.a0438-11/26 serial logic table (3) input setting mode description remarks set channel pi serial data reflection timing d0 d1 d2 d3 d4 d5 d6 d7 1ch 2ch 3ch 4ch 5ch 6ch step1 step2 stb 0 0 1 0 0 * * * 5ch energization direction off *1 { { 1 0 * * * out5a out5b 0 1 * * * out5b out5a 1 1 * * * brake * * 0 0 * 6ch energization direction off *2 { * * 1 0 * out6a out6b * * 0 1 * out6b out6a * * 1 1 * brake * * * * 0 (dummy data) * * * * 1 1 0 1 0 * * * * reference setting channel selection 5ch setting { { { 1 * * * * 6ch setting * 0 0 0 0 constant-current reference voltage 0.300v * 1 0 0 0 0.200v * 0 1 0 0 0.190v * 1 1 0 0 0.180v * 0 0 1 0 0.170v * 1 0 1 0 0.165v * 0 1 1 0 0.160v * 1 1 1 0 0.155v * 0 0 0 1 0.150v * 1 0 0 1 0.145v * 0 1 0 1 0.140v * 1 1 0 1 0.135v * 0 0 1 1 0.130v * 1 0 1 1 0.120v * 0 1 1 1 0.110v * 1 1 1 1 0.100v
LV8044LP,lv8044lq no.a0438-12/26 serial logic table (4) input setting mode description remarks set channel pi serial data reflection timing d0 d1 d2 d3 d4 d5 d6 d7 1ch 2ch 3ch 4ch 5ch 6ch step1 step2 stb 0 1 1 0 * * * * photo-sensor drive 1 off { { 1 * * * * on * 0 * * * photo-sensor drive 2 off * 1 * * * on * * 0 * * photo-sensor drive 3 (when pi3 output selected) off * * 1 * * on * * * 0 * (dummy data) * * * 1 * * * * * 0 (dummy data) * * * * 1 1 1 1 0 * * * * pi3/mo select pi3 output { { 1 * * * * mo output * 0 * * * mo output channel selection (when mo output selected) 1/2ch *3 * 1 * * * 3/4ch * * 0 * * mo output position initial position *4 * * 1 * * 1-2 phase * * * 0 0 chopping frequency setting 130khz * * * 1 0 65khz * * * 0 1 200khz * * * 1 1 100khz notes *1: this serial data is only accepted when the in51/in52 pu lse inputs are in the low/low states, respectively. it is ignored at all other times. *2: this serial data is only accepted when the in61/in62 pu lse inputs are in the low/low states, respectively. it is ignored at all other times. *3: when d4 = 1, mo is only output if microstep mode is selected for channels 3 and 4. in pwm mode, this output is held fixed at the high level. *4: the mo output can be specified to be the 1-2 phase position only in 4w1-2 phase excitation mode. in all other excitation modes, the mo output position becomes the in itial position regardless of the serial data values.
LV8044LP,lv8044lq no.a0438-13/26 channels 1 and 2 driver circuit (mic rostep drive stepping mode driver) step1 pin function input operating mode st step1 low * standby mode high excitation step feed high excitation step hold excitation mode setting (d0 = 0, d1 = 0, d2 = 0) d3 d4 excitation mode initial position 1ch 2ch 0 0 2 phase excitation 100% -100% 1 0 1-2 phase excitation (full torque) 100% 0% 0 1 1-2 phase excitation 100% 0% 1 1 4w1-2 phase excitation 100% 0% the initial state at power on is the initial position fo r each excitation mode when the counter is reset. reference voltage setting serial data: (d0 = 0, d1 = 0, d2 = 0) d5 d6 current setting reference voltage (when microstep is 100%) 0 0 0.2v 1 0 0.134v 0 1 0.1v 1 1 0.066v the output current setting reference voltage can be sw itched between four levels with the serial data. this setting is useful for saving pow er in the motor powered hold state. calculating the set current since the reference voltage can be modified (0.2, 0.134, 0.1, and 0.66v) with the serial data, the output current can be set with the reference voltage and the resistor rf connected between the rf pin and ground. i out = ( )/ example: if the reference voltage is 0.2 v, the set cu rrent ratio is 100%, and the rf resistor value is 1 , then the output current will be that shown below. i out = 0.2v 100%/1 = 200ma
LV8044LP,lv8044lq no.a0438-14/26 output current vector locus (with one step normalized to 90 degrees) set current ratios in the different excitation modes step 4w1-2 phase (%) 1-2 phase (%) 1-2 phase full torque (%) 2 phase (%) 1ch 2ch 1ch 2ch 1ch 2ch 1ch 2ch 0 0 100 0 100 0 100 1 10 100 2 20 100 3 30 96.5 4 39.5 93.0 5 48.5 89 6 57.5 85.5 7 65.5 81.5 8 74.0 74.0 74.0 74.0 100 100 100 100 9 81.5 65.5 10 85.5 57.5 11 89 48.5 12 93.0 39.5 13 96.5 30 14 100 20 15 100 10 16 100 0 100 0 100 0
LV8044LP,lv8044lq no.a0438-15/26 2 phase excitation (cw mode) 1-2 phase excitation full torque (cw mode) 1-2 phase excitation (cw mode)
LV8044LP,lv8044lq no.a0438-16/26 4w1-2 phase excitation (cw mode)
LV8044LP,lv8044lq no.a0438-17/26 current control operation specifications ? sine wave increasing direction coil current set current set current current mode step fchop charge slow fast charge slow fast ? sine wave decreasing direction fchop charge slow fast charge charge slow fast coil current set current set current current mode step each of the current modes oper ates with the follow sequence. ? the ic enters charge mode when the chopping oscillation star ts. (a period of charge mode is forcibly present in 1/8 of the period, regardless of which of the coil curre nt (icoil) and the set current (iref) is larger.) ? in charge mode, the coil current (icoil) and the set current (iref) are compared. if an icoil < iref state exists during the charge period: the ic operates in charge mode until icoil iref. after that, it switches to slow decay mode and then switches to fast decay mode in the last 1/8 of the period. if no icoil < iref state exists during the charge period: the ic switches to fast decay mode and the coil current is attenuated with the fast decay operation until the end of the chopping period. the above operation is repeated. normally, in the sine wave increasing direction the ic operates in slow (+fast) decay mode, and in the sine wave decreasing direction the ic oper ates in fast decay mode until the current is attenuated and reaches the set value and the ic operates in slow decay mode.
LV8044LP,lv8044lq no.a0438-18/26 chopping frequency setting (d6 and d7 in the serial data) this ic integrates an internal oscillator circuit and allows the chopping frequency used in constant-current control to be switched with the serial data (111***, d6, d7) setting. data d6 data d7 chopping frequency 0 0 130khz 1 0 65khz 0 1 200khz 1 1 100khz monitor output setting (serial data bits d3, d4, and d5) the signal output from the pi3/mo pin can be switched with the serial data (111, d3, ****) setting. data d3 pi3/mo pin output 0 photosensor drive output 3 1 stepping position detection monitor output it is also possible to select which of channels 1 and 2 or channels 3 and 4 are output from the monitor pin with the serial data (111*, d4, d5, **) setting. the mo output position used to detect the driver excitation position in microstepping drive mode can also be switched. the state mo = low is output at the output position. data d4 data d5 channels 1 and 2 excitation mode channels 3 and 4 excitation mode mo output 0 0 2 phase excitation channels 1 and 2 monitor/initial position 0 1 0 0 1-2 phase excitation (full torque) channels 1 and 2 monitor/initial position 0 1 0 0 1-2 phase excitation channels 1 and 2 monitor/initial position 0 1 0 0 4w1-2 phase excitation channels 1 and 2 monitor/initial position 0 1 channels 1 and 2 monitor/1-2 phase position 1 0 2 phase excitation channels 3 and 4 monitor/initial position 1 1 1 0 1-2 phase excitation (full torque ) channels 3 and 4 monitor/initial position 1 1 1 0 1-2 phase excitation channels 3 and 4 monitor/initial position 1 1 1 0 4w1-2 phase excitation channels 3 and 4 monitor/initial position 1 1 channels 3 and 4 monitor/1-2 phase position 1 0 pwm drive mode output held fixed at the high level 1 1
LV8044LP,lv8044lq no.a0438-19/26 basic set current step switching (step pin) and forward/reverse switching (d3 in the serial data) operations the ic internal d/a converter advances by 1 bits on the rising edge of the input step pulse. the cw/ccw mode can be switched with the serial data (100, d3, ****) setting. the operation progresses with the position number decreasing in cw mode and increasing in ccw mode. in cw mode, the channel 2 current phase is delayed by 90 degrees relative to the channel 1 current. in ccw mode, the channel 2 current phase is advanced by 90 degrees relative to the channel 1 current.
LV8044LP,lv8044lq no.a0438-20/26 excitation mode switching during operation (d3 and d4 in the serial data) if the excitation mode is switched when power is applied to the motor, the operation follows the sequence shown below. (cw mode) before excitation mode switching step po sition after excitation mode switching excitation mode position 4w1-2 phase 1-2 phase 2 phase full torque 2 phase 4w1-2 phase (16) (8) (8)? (8)? (15) to (9) (8) (8)? (8)? (8) 0 0 (8)? (7) to (1) (8) (8)? (8)? 0 -(8) -(8)? -(8)? 1-2 phase (16) (15) (8)? (8)? (8) (7) 0 (8)? 0 -(1) -(8)? -(8)? 2 phase full torque (16) (15) (8) (8)? (8)? (7) 0 (8)? 0 -(1) -(8) -(8)? 2 phase (8)? (7) 0 0
LV8044LP,lv8044lq no.a0438-21/26 output enable function (d6 in the serial data) when the oe bit in the serial data, d6 (100, ***, d6, *), is set to 0, the output is turned off and set to the high-impedance state at the rise of stb. since, however, the internal logic circuits operate in this state, the position number will be advanced if a step input is applied. therefore, when the oe bit (d6) is returned to 1, a level according to the position number advanced by the step input will be output. counter reset function (d5 in the serial data) when the reset bit in the serial data, d5 (100, **, d5, **), is set to 0, the output goes to the initial state at the rise of s tb and the mo output goes low. then, when the reset bit (d5) is next set to 1, the position number will advance at the next step input.
LV8044LP,lv8044lq no.a0438-22/26 step hold function (d4 in the serial data) when the hold bit in the serial data, d4 (100, *, d4, ***), is set to 1, the external step state at that time is held without change as the internal step state. since the (external) step state is low at the timing of the step hold operation (1) in the figure, the internal step state is held at the low level, and since the (external) step state is high at the timing of the step hold operation (1), the internal step state is held at the high level. when the hold data (d) is set to 0, the internal st ate is synchronized with the external step signal. the output is held at the state at the po int where the step hold was applied and after the step hold is released, it advances with the timing of the next step input (rising edge). as long as the ic is in the hold stat e, the position number does not advance even if external step pulses are applied.
LV8044LP,lv8044lq no.a0438-23/26 channels 3 and 4 driver circuit (s aturated drive/microstep drive) driver mode setting (d0 = 0, d1 = 1, d2 = 0) d7 data value drive mode pin functions notes 0 saturated drive pwm3 used as the channel 3 pwm input pin 1 microstep drive step2 used as the channels 3 and 4 excitation step input pin the channels 3 and 4 driver circuit can be switched between the following operating modes by bit d7 in the serial data (010, ****, d7). (1) two saturated mode driver channels (2) one microstep drive stepping motor driver channel microstep drive stepping motor driver the basic functionality provided is identical to that of the channels 1 and 2 stepping motor driver. see section 10-2 for details on the serial data settings. pwm saturated mode driver channel 3 truth table (pwm mode: d0 = 1, d1 = 1, d2 = 0) input output operating mode st pwm3 d3 d4 d7 out3a out3b low * * * * off off standby mode high low 0 0 * off off output off high low 1 0 * high low cw (forward) high low 0 1 * low high ccw (reverse) high low 1 1 * low low brake high high * * 0 low low slow decay (brake) high high * * 1 off off fast decay (output off) channel 4 truth table (pwm mode: d0 = 1, d1 = 1, d2 = 0) input output operating mode st pwm4 d5 d6 d7 out4a out4b low * * * * off off standby mode high low 0 0 * off off output off high low 1 0 * high low cw (forward) high low 0 1 * low high ccw (reverse) high low 1 1 * low low brake high high * * 0 low low slow decay (brake) high high * * 1 off off fast decay (output off) *: don?t care
LV8044LP,lv8044lq no.a0438-24/26 channels 5 and 6 driver circ uit (constant-current drive) output function when the channels 5 and 6 driver circuit is used to drive an actuator, it can be controlled either from the serial data or from the in51, in52, in61, and in62 parallel signals. when the parallel input signals in51 (in61)/in52 (in62) are in the low/low state (note that since these inputs are pulled down internally in the ic, the open/open state can also be used), the output mode will be determined by the serial data. if the parallel input signals are in any state other than the ab ove, the serial data will be ignored and the output mode will be determined by the parallel inputs. truth table (channel 5: d0 = 0, d1 = 0, d2 = 1) parallel input serial data outputs mode in51 in52 d3 d4 out5a out5b low low 0 0 off off standby mode 1 0 high low cw (forward) 0 1 low high ccw (reverse) 1 1 low low brake high low * * high low cw (forward) low high * * low high ccw (reverse) high high * * low low brake truth table (channel 6: d0 = 0, d1 = 0, d2 = 1) parallel input serial data outputs mode in61 in62 d5 d6 out6a out6b low low 0 0 off off standby mode 1 0 high low cw (forward) 0 1 low high ccw (reverse) 1 1 low low brake high low * * high low cw (forward) low high * * low high ccw (reverse) high high * * low low brake *: don?t care
LV8044LP,lv8044lq no.a0438-25/26 constant-current control reference voltage setting (d0 = 1, d1 = 0, d2 = 1, d3 = 0 (channel 5) or d3 = 1 (channel 6)) d4 d5 d6 d7 current se tting reference voltage 0 0 0 0 0.300v 1 0 0 0 0.200v 0 1 0 0 0.190v 1 1 0 0 0.180v 0 0 1 0 0.170v 1 0 1 0 0.165v 0 1 1 0 0.160v 1 1 1 0 0.155v 0 0 0 1 0.150v 1 0 0 1 0.145v 0 1 0 1 0.140v 1 1 0 1 0.135v 0 0 1 1 0.130v 1 0 1 1 0.120v 0 1 1 1 0.110v 1 1 1 1 0.100v the constant-current setting for channels 5 and 6 can be set individually for each channel. (when d3 is 0, channel 5 is set, an d when d3 is 1, channel 6 is set.) the constant-current output value is set by the constant-curre nt reference voltage set with the serial data and the value of the resistor (referred to as "rf" here) connected to the rf5 or rf6 pin. the formula below is used to calculated the constant-current output value. = /
LV8044LP,lv8044lq ps no.a0438-26/26 sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probabi lity. it is possible that these probabilistic failures or malfunction could give rise to acci dents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause dam age to other property. when designing equipment, adopt safety measures so that these kinds of accidents or e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of sanyo semiconductor co.,ltd. or any third party. sanyo semiconductor co.,ltd. shall not be liable f or any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, refer to the "delivery specification" for the sanyo semiconductor co.,ltd. product that you intend to use. in the event that any or all sanyo semiconductor c o.,ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities conc erned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. photosensor drive circui t (pi1, pi2, and pi3) the photosensor drive circuit has open-drain outputs. the output is controlled (set to on or off) by a bit in the serial data (0 or 1). truth table input output drive circuit st d3 d4 d5 pi1 pi2 pi3 low * * * off off off standby mode high 0 * * off * * off high 1 * * low * * on high * 0 * * off * off high * 1 * * low * on high * * 0 * * off off high * * 1 * * low on this catalog provides information as of october, 2011. specifications and information herein are subject to change without notice.

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