orderin g numbe r : ena0927a monolithic digital ic low-saturation bidirect ional motor driver for low-voltage drive lb1838jm overview the lb1838jm is a low-saturation two-channel bidirectional motor driver ic for use in low-voltage applications. it has a wide operating temperature range of -40 to 80 c an d i s ideal for 2-phase excitation bipolar stepping motor driver ic used in automotive components (other than critical safety parts), consumer and industrial products, and many other applications. features ? low voltage operation (2.5v min) ? lo w saturation voltage (upper transistor + lower transistor residual voltage ; 0.40v typ at 400ma). ? th rough-current prevention circuit built in ? se parate logic power supply and motor power supply ? spark killer diodes built in ? th ermal shutdown circuit built in ? c ompact package (14-pin mfp) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit v cc max -0.3 to +10.5 v maximum supply voltage v s max -0.3 to +10.5 v output supply voltage v out v s to v sf v input supply voltage v in -0.3 to +10 v gnd pin flow-out current ignd per channel 1.0 a pd max1 independent ic 550 mw allowable power dissipation pd max2 * mounted on a board. 800 mw operating temperature topr -40 to +85 c storage temperature tstg -55 to +150 c * mounted on a substrate: 30 30 1.5mm 3 , glass epoxy board. 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. 31110 sy / 91207 ms pc 20070831-s00003 no.a0927-1/5
lb1838jm allowable operating ranges at ta = 25 c parameter symbol conditions ratings unit v cc 2.5 to 9.0 v supply voltage v s 1.8 to 9.0 v input high-level voltage v ih 1.8 to 9.0 v input low-level voltage v il -0.3 to +0.7 v electrical characteristics a t ta = 25 c, v cc = 3v ratings parameter symbol conditions min typ max unit i cc 0 ema1, 2 = 0v, v in 1 = 3v or 0v 0.1 10 a supply current i cc 1 ema1 = 3v, v in 1 = 3v or 0v 12 18 ma v out 1 ema1 = 3v, v in 1 = 3v or 0v, i out = 200ma 0.20 0.28 v output saturation voltage v out 2 ema1 = 3v, v in 1 = 3v or 0v, i out = 400ma 0.40 0.60 v i in v cc = 6v, v in = 6v 200 a input current i ena v cc = 6v, ena = 6v 200 a output sustaining voltage v o (sus) i out = 400ma 9 v spark killer diode reverse current i s (leak) v cc 1, v s = 7v 30 a forward voltage v sf i out = 400ma 1.7 v package dimensions unit : mm (typ) 3111a 416 286 pd max -- ta ambient temperature, ta ? c allowable power dissipation, pd max ? mw 0 800 600 550 400 200 1000 ? 40 ? 20 8085 60 2025 40 01 no.a0927-2/5 sanyo : mfp14s(225mil) 1 14 7 8 8.0 0.15 (1.0) 1.0 0.35 1.7max (1.5) 0.1 4.4 0.63 6.4 0 0 independent ic mounted on a board : 30.0 30.01.5mm 3 glass epoxy mounted on a board pin assignment 14 gnd 1 v cc 13 ena2 2 ena1 12 out3 3 out1 11 v s 2 4 v s 1 10 out4 5 out2 9 in2 6 in1 8 vcont 7 gnd lb1838jm top vie w note) ground both gnd pins.
lb1838jm block diagram in1 out1 stepping motor out2 v s 1 10f v s 2 out3 out4 gnd vcont gnd v cc ena1 in2 ena2 60k 80k 60k 80k 60k 80k 60k 80k control control thermal shutdown * : as long as the voltages applied to v cc , v s 1, v s 2, ena1, ena2, in1 and in2 are within the limits set by the absolute maximum ratings, there are no restrictions on the relationship of each voltage level in comparison with the others (regarding which is higher or lower). (ex. v cc = 3v, v s 1, 2 = 2v, ena = in = 5v) truth table in1/2 ena1/2 out1/3 out2/4 mode l h h l forward h h l h reverse l l off off standby h l off off standby no.a0927-3/5
lb1838jm vcont pin no.a0927-4/5 i d = v z r (= constant) as shown in the above diagram, the vcont pin outputs the voltage of the band gap zener v z + v f (=1.93v). in normal use, this pin is left open. the drive current i d is varied by the vcont voltage. however, because the band gap zener is shared, it functions as a bridge. m out 300 out i d v cc v s in vcont v z 0 0.2 0.4 0.6 0.8 1.0 0 40 80 120 160 200 0 200 100 300 400 500 5 46789 23 600 output current, i o ?ma output saturation voltage, v o 0 0.1 0.3 0.2 0.4 0.5 0.6 0 4 8 12 16 20 ? 40 ? 20 0 20 40 60 80 100 120 1 2 3 4 5 6 7 8 9 10 11 140 ambient temperature, ta ? c o 01 2 supply voltage, v s ?v current drain, i s ?ma 01 10 input voltage, v in ?v input current, i in ? a v o (sat) ? i o i in ? v in v o (sat) ? ta i s ? v s v cc = v s = 3v v ? ena (sat) in1 (ena = 3v) output saturation voltage, v (sat) ? v v cc = v s = in = 3v v o (sat) = total value v cc = v in =3v for 1 channel i o = 400ma i o = 200ma
lb1838jm i cc ? v cc 0 4 2 6 8 10 01 234 56 8 7 9 10 11 12 supply voltage, v cc ?v v cc = v in =3v for 1 channel ps no.a0927-5/5 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 probability. 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. 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 probability. 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. ?m a this catalog provides information as of january, 2007. specifications and information herein are subject to change without notice. this catalog provides information as of march, 2010. specifications and information herein are subject to change without notice. current drain, i cc reverse forward
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