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20211 sy 20110117-s00002 no.a1918-1/16 specifications of any and all sanyo semiconductor co.,l td. 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 ' sproductsor 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 (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. LV8713T overview the LV8713T is a stepping motor driver of the micro-step drive corresponding to supports 8w 1-2 phase excitation. it is the best for the drive of the stepping motor for a scanner and a small printer. features ? single-channel pwm constant-current control stepping motor driver incorporated. ? control mode can be set to 2-phase, 1-2 phase, 4w1-2 phase , or 8w1-2 phase ? microstep can control easily by the clk-in input. ? power-supply voltage of motor : vm max = 18v ? output current : i o max = 0.8a ? output on resistance : r on = 1.1 ? (upper and lower total, typical, ta = 25 c ) ? a thermal shutdown circuit and a low voltage detecting circuit are built into. specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit motor supply voltage vm max 18 v logic supply voltage v cc max 6v output peak current i o peak each 1ch, tw 10ms, duty 20% 1.0 a output continuousness current i o max each 1ch 800 ma logic input voltage v in -0.3 to v cc + 0.3 v allowable power dissipation pd max * 1.35 w operating temperature topr -20 to +85 c storage temperature tstg -55 to +150 c * specified circuit board : 57.0mm 57.0mm 1.7mm, glass epoxy 2-layer board. bi-cmos lsi pwm constant-current control stepping motor driver orderin g numbe r : ena1918
LV8713T no.a1918-2/16 allowable operating ratings at ta = 25 q c parameter symbol conditions ratings unit motor supply voltage range vm 4 to 16 v logic supply voltage range v cc 2.7 to 5.5 v logic input voltage v in -0.3 tp v cc +0.3 v vref input voltage range vref 0 to v cc -1.8 v electrical characteristics at ta = 25c, vm = 12v, v cc = 3.3vvref = 1.0v ratings parameter symbol conditions min typ max unit imstn ps = ?l?, no load 1 p a standby mode current drain i cc stn ps = ?l?, no load 1 p a im ps = ?h?, no load 0.3 0.5 0.7 ma current drain i cc ps = ?h?, no load 0.9 1.3 1.7 ma thermal shutdown temperature tsd design guarantee 180 q c thermal hysteresis width ' tsd design guarantee 40 q c v cc low voltage cutting voltage vthv cc 2.1 2.4 2.7 v low voltage hysteresis vo ltage vthhis 100 130 160 mv reg5 output voltage vreg5 i o = -1ma 4.5 5 5.5 v ronu i o = -800ma, source-side on resistance 0.78 1.0 : output on resistance rond i o = 800ma, sink-side on resistance 0.32 0.43 : output leakage current i o leak v o = 15v 10 p a diode forward voltage vd id = -800ma 1.0 1.2 v i in l v in = 0.8v 4 8 12 p a logic pin input current i in h v in = 3.3v 22 33 45 p a logic high-level input voltage v in h 2.0 v logic low-level input voltage v in l 0.8 v vref input current i ref vref = 1.0v -0.5 p a vtatt00 att1 = l, a tt2 = l 0.191 0.200 0.209 v vtatt01 att1 = h, a tt2 = l 0.152 0.160 0.168 v vtatt10 att1 = l, a tt2 = h 0.112 0.120 0.128 v current setting comparator threshold voltage (current attenuation rate switching) vtatt11 att1 = h, a tt2 = h 0.072 0.080 0.088 v chopping frequency fchop cchop = 220pf 36 45 54 khz v chop h 0.6 0.7 0.8 v chop pin threshold voltage v chop l 0.17 0.2 0.23 v chop pin charge/discharge current ichop 7 10 13 p a moni pin saturation voltage vsatmon imoni = 1ma 250 400 mv vtdac0_2w step 0 (when initialized : channel 1 comparator level) 0.191 0.200 0.209 v vtdac1_8w step 1 (initial state+1) 0.191 0.200 0.209 v vtdac2_8w step 2 (initial state+2) 0.191 0.200 0.209 v vtdac3_8w step 3 (initial state+3) 0.189 0.198 0.207 v vtdac4_8w step 4 (initial state+4) 0.187 0.196 0.205 v vtdac5_8w step 5 (initial state+5) 0.185 0.194 0.203 v vtdac6_8w step 6 (initial state+6) 0.183 0.192 0.201 v vtdac7_8w step 7 (initial state+7) 0.179 0.188 0.197 v vtdac8_8w step 8 (initial state+8) 0.175 0.184 0.193 v vtdac9_8w step 9 (initial state+9) 0.171 0.180 0.189 v vtdac10_8w step 10 (initial state+10) 0.167 0.176 0.185 v vtdac11_8w step 11 (initial state+11) 0.163 0.172 0.181 v vtdac12_8w step 12 (initial state+12) 0.158 0.166 0.174 v vtdac13_8w step 13 (initial state+13) 0.152 0.160 0.168 v vtdac14_8w step 14 (initial state+14) 0.146 0.154 0.162 v vtdac15_8w step 15 (initial state+15) 0.140 0.148 0.156 v current setting comparator threshold voltage (current step switching) 8w1-2-phase drive vtdac16_8w step 16 (initial state+16) 0.132 0.140 0.148 v continued on next page.
LV8713T no.a1918-3/16 continued from preceding page. ratings parameter symbol conditions min typ max unit vtdac17_8w step 17 (initial state+17) 0.126 0.134 0.142 v vtdac18_8w step 18 (initial state+18) 0.118 0.126 0.134 v vtdac19_8w step 19 (initial state+19) 0.112 0.120 0.128 v vtdac20_8w step 20 (initial state+20) 0.102 0.110 0.118 v vtdac21_8w step 21 (initial state+21) 0.094 0.102 0.110 v vtdac22_8w step 22 (initial state+22) 0.086 0.094 0.102 v vtdac23_8w step 23 (initial state+23) 0.078 0.086 0.094 v vtdac24_8w step 24 (initial state+24) 0.068 0.076 0.084 v vtdac25_8w step 25 (initial state+25) 0.060 0.068 0.076 v vtdac26_8w step 26 (initial state+26) 0.050 0.058 0.066 v vtdac27_8w step 27 (initial state+27) 0.040 0.048 0.056 v vtdac28_8w step 28 (initial state+28) 0.032 0.040 0.048 v vtdac29_8w step 29 (initial state+29) 0.022 0.030 0.038 v vtdac30_8w step 30 (initial state+30) 0.012 0.020 0.028 v 8w1-2-phase drive vtdac31_8w step 31 (initial state+31) 0.002 0.010 0.018 v vtdac0_4w step 0 (when initialized : channel 1 comparator level) 0.191 0.200 0.209 v vtdac2_4w step 2 (initial state+1) 0.191 0.200 0.209 v vtdac4_4w step 4 (initial state+2) 0.187 0.196 0.205 v vtdac6_4w step 6 (initial state+3) 0.183 0.192 0.201 v vtdac8_4w step 8 (initial state+4) 0.175 0.184 0.193 v vtdac10_4w step 10 (initial state+5) 0.167 0.176 0.185 v vtdac12_4w step 12 (initial state+6) 0.158 0.166 0.174 v vtdac14_4w step 14 (initial state+7) 0.146 0.154 0.162 v vtdac16_4w step 16 (initial state+8) 0.132 0.140 0.148 v vtdac18_4w step 18 (initial state+9) 0.118 0.126 0.134 v vtdac20_4w step 20 (initial state+10) 0.102 0.110 0.118 v vtdac22_4w step 22 (initial state+11) 0.086 0.094 0.102 v vtdac24_4w step 24 (initial state+12) 0.068 0.076 0.084 v vtdac26_4w step 26 (initial state+13) 0.050 0.058 0.066 v vtdac28_4w step 28 (initial state+14) 0.032 0.040 0.048 v 4w1-2-phase drive vtdac30_4w step 30 (initial state+15) 0.012 0.020 0.028 v vtdac0_h step 0 (when initialized : channel 1 comparator level) 0.191 0.200 0.209 v 1-2 phase drive vtdac16_h step 4 (initial state+1) 0.132 0.140 0.148 v current setting comparator threshold voltage (current step switching) 2 phase drive vtdac16_f step 4' (when initialized : channel 1 comparator level) 0.191 0.200 0.209 v
LV8713T no.a1918-4/16 package dimensions unit : mm (typ) 3260a pin assignment ambient temperature, ta - c allowable power dissipation, pd max - w pd max - ta 0 0.5 1.0 1.5 1.35 0.70 - 20 40 60 80 20 0 100 specified circuit board : 57.0 sanyo : tssop24(225mil) 6.4 0.5 4.4 (0.5) (1.0) 6.5 0.5 0.15 1 12 24 13 0.22 0.08 1.2max rst oe reg5 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LV8713T ps moni vref step att1 att2 chop v cc gnd fr out1a pgnd rnf1 out1b vm out2a rnf2 out2b pgnd md1 md2
LV8713T no.a1918-5/16 block diagram att1 att2 pgnd moni oe rst step fr md2 md1 chop tsd lvs vref gnd v cc rnf1 out1a out1b out2a out2b rnf2 vm + - + - + - + - 1/5 ps + - reg5 output preamplifier stage output control logic current selection (8w1-2/ 4w1-2/1-2/2) current selection (8w1-2/ 4w1-2/1-2/2) oscillation circuit output preamplifier stage output preamplifier stage output preamplifier stage attenuator (100%/80% /50%/20%) vm-5v standard voltage standard voltage start circuit
LV8713T no.a1918-6/16 pin functions pin no. pin name pin functtion equivalent circuit 1 2 7 8 9 13 14 24 rst oe step att1 att2 md2 md1 fr excitation reset signal input pin. output enable signal input pin. step signal input pin. motor holding current switching pin. motor holding current switching pin. excitation mode switching pin 2. excitation mode switching pin 1. cw / ccw switching signal input pin. v cc gnd 4 ps power save signal input pin. v cc gnd 4 16 17 18 20 21 23 out2b rnf2 out2a out1b rnf1 out1a channel 2 outb output pin. channel 2 current-sense resistor connection pin. channel 2 outa output pin. channel 1 outb output pin. channel 1 current-sense resistor connection pin. channel 1 outa output pin.power gnd 21 17 vm 18 23 16 20 6 vref constant curre nt control reference voltage input pin. gnd 6 v cc continued on next page.
LV8713T no.a1918-7/16 continued from preceding page. pin no. pin name pin functtion equivalent circuit 3 reg5 internal power supply capacitor connection pin. gnd 3 v m 5 moni position detection monitor pin. gnd 5 v cc 10 chop chopping frequency setting capacitor connection pin. gnd 10 v cc
LV8713T no.a1918-8/16 description of operation stepping motor control (1) power save function this ic is switched between standby and operating mode by setting the ps pin. in standby mode, the ic is set to power-save mode and all logic is reset. in addition, the internal regulator circuit do not operate in standby mode. ps mode internal regulator low or open standby mode standby high operating mode operating (2) the order of turning on recommended power supply the order of turning on each power supply recommends the following. vcc power supply order : vm power supply order : ps pin = high it becomes the above-mentioned opposite for power supply off. however, the above-mentioned is a recommendation, the overcurrent is not caused by not having defended this, and ic is destroyed. (3) step pin function input ps stp operating mode low * standby mode high excitation step proceeds high excitation step is kept (4) excitation mode setting function(initial position) initial position md1 md2 excitation mode channel 1 channel 2 low low 2 phase excitation 100% -100% high low 1-2 phase excitation 100% 0% low high 4w1-2 phase excitation 100% 0% high high 8w1-2 phase excitation 100% 0% this is the initial position of each excitation mode in th e initial state after power-on and when the counter is reset. (5) position detection monitoring function the moni position detection monitoring pin is of an open drian type. when the excitation position is in the initial positi on, the moni output is placed in the on state. (refer to "(12) examples of current wave forms in each of the excitation modes.")
LV8713T no.a1918-9/16 (6) reset function rst operating mode high normal operation low reset state when the rst pin is set to low, the excitation position of the output is forcibly set to the initial position, and the moni output is placed in the on state. when rst is then set to high, the excitation position is advanced by the next step input. (7) output enable function oe operating mode low output on high output off when the oe pin is set high, the output is forced off and goes to high impedance. however, the internal logic circuits are operating, so th e excitation position proceeds when the step signal is input. therefore, when oe is returned to low, the output level conforms to the excitation position proceeded by the step input. oe power save mode 0% step moni 1ch output 2ch output output is high-impedance rst reset 0% step moni 1ch output 2ch output initial position
LV8713T no.a1918-10/16 (8) forward/reverse switching function fr operating mode low clockwise (cw) high counter-clockwise (ccw) the internal d/a converter proceeds by one bit at the rising edge of the input step pulse. in addition, cw and ccw mode are switched by setting the fr pin. in cw mode, the channel 2 current phase is delayed by 90 relative to the channel 1 current. in ccw mode, the channel 2 current phase is adva nced by 90 relative to the channel 1 current. (9) setting constant-current control the setting of stm driver's constant current control is decided the vref voltage from the resistance connected between rnf and gnd by the following expression. i out = (vref/5)/rnf resistance * the above setting is the output current at 100% of each excitation mode. the voltage input to the vref pin can be switched to four-step settings depending on the statuses of the two inputs, att1 and att2. this is effective for reducing power consumption when motor holding current is supplied. attenuation function for vref input voltage att1 att2 current setting reference voltage attenuation ratio low low 100% high low 80% low high 60% high high 40% the formula used to calculate the output current when using the function for attenuating the vref input voltage is given below. i out = (vref/5) (attenuation ratio)/rnf resistance example : at vref of 1.0v, a reference voltage setting of 100% [(att1, att2) = (l, l)] and an rnf resistance of 0.5 : , the output current is set as shown below. i out = 1.0v/5 100%/0.5 : = 400ma if, in this state, (att1, att2) is se t to (h, h), iout will be as follows : i out = 400ma 40% = 160ma in this way, the output current is attenuated when th e motor holding current is supplied so that power can be conserved. fr cw mode cw mode ccw mode step excitation position 1ch output 2ch output (1) (2) (3) (4) (5) (6) (5) (4) (3) (4) (5)
LV8713T no.a1918-11/16 (10) chopping frequency setting for constant-current control, this ic performs chopping operations at the frequency determined by the capacitor (cchop) connected between the chop pin and gnd. the chopping frequency is set as shown below by the capacitor (cchop) connected between the chop pin and gnd. tchop P P (11) output current vector locus (one step is normalized to 90 degrees) channel 2 current ratio (%) channel 1 phase current ratio (%) 0.0 33.3 66.7 100.0 0.0 33.3 66.7 100.0
LV8713T no.a1918-12/16 setting current ration in each excitation mode 8w1-2 phase (%) 4w1-2 phase (%) 1-2 phase (%) 2-phase (%) step channel 1 channel 2 channel 1 channel 2 channel 1 channel 2 channel 1 channel 2 t 0 100 0 100 0 100 0 t 1 100 5 t 2 100 10 100 10 t 3 99 15 t 4 98 20 98 20 t 5 97 24 t 6 96 29 96 29 t 7 94 34 t 8 92 38 92 38 t 9 90 43 t 10 88 47 88 47 t 11 86 51 t 12 83 55 83 55 t 13 80 60 t 14 77 63 77 63 t 15 74 67 t 16 70 70 70 70 70 70 100 100 t 17 67 74 t 18 63 77 63 77 t 19 60 80 t 20 55 83 55 83 t 21 51 86 t 22 47 88 47 88 t 23 43 90 t 24 38 92 38 92 t 25 34 94 t 26 29 96 29 96 t 27 24 97 t 28 20 98 20 98 t 29 15 99 t 30 10 100 10 100 t 31 5 100 t 32 0 100 0 100 0 100
LV8713T no.a1918-13/16 (12) typical current waveform in each excitation mode 2-phase excitation (cw mode) 1-2 phase excitation (cw mode) step moni l1 (%) (%) -100 -100 100 100 0 0 i2 step moni i1 (%) -100 -100 100 (%) 100 0 0 i2
LV8713T no.a1918-14/16 4 w1-2 phase excitation (cw mode) 8w1-2 phase excitation (cw mode) step moni i1 -100 (%) 100 50 -50 0 i2 -100 (%) 100 50 -50 0 step moni i1 -100 (%) 100 50 -50 0 i2 -100 (%) 100 50 -50 0
LV8713T no.a1918-15/16 (13) current control timing chart(chopping operation) (sine wave increasing direction) (sine wave decreasing direction) in each current mode, the operation sequence is as described below : x at rise of chopping frequency, the charge mode begins. (the blanking section in which the charge mode is forced regardless of the magnitude of the coil cu rrent (icoil) and set current (iref) exists for 1 p s.) x the coil current (icoil) and set current (ir ef) are compared in this blanking time. when (icoil < iref) state exists ; the charge mode up to icoil t iref, then followed by changeover to the slow decay mode, and finally by the fast decay mode for approximately 1 p s. when (icoil < iref) state does not exist ; the fast decay mode begins. the coil current is a ttenuated in the fast decay mode till one cycle of chopping is over. above operations are repeated. normally , the slow (+fast) decay mode continues in the sine wave increasing direction, then entering the fast decay mode till the curren t is attenuated to the set level and followed by the slow decay mode. fast slow charge fast slow charge current mode fchop coil current step set current set current fast slow fast slow charge current mode fchop coil current step set current set current forced charge section charge chopping cycle blanking section blanking section blanking section blanking section blanking section chopping cycle chopping cycle
LV8713T ps no.a1918-16/16 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. application circuit example the formulae for setting the constants in the examples of the application circuits above are as follows : constant current (100%) setting when vref = 1.0v i out = vref/5/rnf resistance = 1.0v/5/0.51 : = 0.392a chopping frequency setting fchop = ichop/ (cchop vtchop 2) = 10 p a/ (220pf 0.5v 2) = 45khz this catalog provides information as of february, 2 011. specifications and information herein are subject to change without notice. logic input clock input short-circuit state detection monitor + - 220pf 12v 1.0v + - m reg5 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LV8713T ps moni vref step att1 att2 chop v cc gnd fr out1a pgnd rnf1 out1b vm out2a rnf2 out2b pgnd md1 md2 oe rst + - 3.3v logic input logic input

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