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. 32812 sy 2012322-s00003/31512 sy no.a2037-1/4 LB1909MC overview the LB1909MC is a 2-channel low saturation voltage forward/reverse motor driver that can operate on a wide supply voltage range (2.5v to 16v). the ic is ideal for use in 2-phase excitation drive of general-purpose 2-phase bipolar stepping motors including dampers for refrigerators. features ? wide supply voltage range : 2.5v to 16v ? low saturation voltage : v o (sat) = 0.25v typ at i o = 200ma. ? built-in shoot-through current protection circuit. ? no standby current consumption (or zero). ? built-in thermal shutdown circuit. ? small package : soic10 specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum power source voltage v cc max -0.3 to +20 v applied output voltage v out max -0.3 to +20 v applied input voltage v in max -0.3 to +18 v gnd pin outflow current i gnd 800 ma allowable power consumption pd max mounted on the specified board * 820 mw operating temperature topr -30 to +85 c storage temperature tstg -40 to +150 c * specified board: 114.3mm 76.1mm 1.6mm, glass epoxy board. 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. monolithic digital ic stepping motor driver ic orderin g numbe r : ena2037a
LB1909MC no.a2037-2/4 allowable operating range at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 2.5 to 16 v input high level voltage v ih pins ena, in1, in2 1.8 to 10 v input low level voltage v il -0.3 to +0.7 v electrical characteristics at ta = 25 c, v cc = 12v parameter symbol conditions ratings unit min typ max power source current i cc 0 ena = l 0.1 10 a i cc 1 ena = h 25 35 ma output saturation voltage v out 1 i out = 200ma 0.25 0.35 v v out 2 i out = 400ma 0.50 0.75 v input current i in v in = 5v 120 160 a thermal protection block *1 thermal shutdown operation temperature ttsd design guarantee *2 180 c temperature hysteresis width ttsd 60 c spark killer diode reverse current i s (leak) 30 a orward voltage v sf i out = 400ma 1.7 v *1 the thermal protection function is a feature to prevent th e product from smoking and firing under unusual conditions. it is not intended to guarantee operation of the product under an ambient temperat ure exceeding the operating temperature range. *2 design guarantee is not tested in individual units. package dimensions unit : mm (typ) 3426 sanyo : soic10 5.0 4.4 6.4 6 10 5 1 0.835 0.15 0.37 0.35 1.0 0.175 1.5 1.75 max 0 30 60 90 120 0 1.0 0.8 0.6 0.4 0.2 pd max -- ta 0.82 0.42 -30 ambient temperature, ta -- c allowable power dissipation, pd max -- w specified board : 114.3 76.1 1.6mm 3 glass epoxy board
LB1909MC no.a2037-3/4 pin assignment 1 v cc 2 ena 3 in1 4 in2 5 nc 6 out3 7 out4 8 gnd 10 9 out1 out2 LB1909MC top view truth table input output remarks ena in1 in2 out1 out2 out3 out4 l off off off off standby mode h l h l channel 1 forward h l h reverse l h l channel 2 forward h l h reverse block diagram v cc 1 2 ena 3 in1 4 in1 30k 100k 100k 100k 35k 35k 10 9 8 7 6 out1 out2 out3 out4 gnd control block circuit thermal shutdown circuit moto r
LB1909MC ps no.a2037-4/4 timing chart (2 phase excitation drive) ena in1 in2 channel 1 output channel 2 output standby reverse forward forward reverse reverse forward reverse forward forward reverse standby this catalog provides information as of march, 2012. specifications and information herein are subject to change without notice. sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-quality high-reliab ility pr oducts, however, any and all semiconductor products fail or malfunction with some probab ility. it is possible that these pr obab ilistic failures or malfunction could give rise to accidents 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 events cannot occur. such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. upon using the technical information or products described 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 for 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. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equip ment, 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 co.,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 concerned 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 information storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd.
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