53012 sy/32812 sy 2012322-s00003/31512 sy no.a2037-1/4 http://onsemi.com semiconductor components industries, llc, 2013 june, 2013 LB1909MC overview the LB1909MC is motor driver ic that can operate on a wi de 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 m ounted 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 abso lute maximum ratings, as a result of continuous usage under hig h temperature, high current, high voltage, or drastic temperature change, the reliability of th e ic may be degraded. please contact us for the further detai ls. monolithic digital ic stepping motor driver ic orderin g numbe r : ena2037c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above the recommended oper ating conditions is not implied. extended exposure to stresses above the recommended operating conditions may affect device reliabili ty.
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 1.8 to 10 v input low level voltage v il pins ena, in1, in2 -0.3 to +0.7 v electrical characteristics at ta = 25 c, v cc = 12v ratings parameter symbol conditions min typ max unit i cc 0 ena = l 0.1 10 a power source current i cc 1 ena = h 25 35 ma v out 1 i out = 200ma 0.25 0.35 v output saturation voltage 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) 3426a 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 sanyo : soic10 4.9 3.9 6.0 6 10 5 1 0.835 0.21 0.37 0.41 1.0 0.175 1.5 1.75 max
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 ena in1 in2 out1 out2 out3 out4 remarks l off off off off standby mode l h l forward h l h channel 1 reverse l h l forward h h l h channel 2 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 on semiconductor and the on logo are registered trademarks of semiconductor components industries, llc (scillc). scillc owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. a listing of scillc?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent-marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc mak es no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability ar ising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequentia l or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s techn ical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorize d for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other appli cation in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of persona l injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture o fthe part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws a nd is not for resale in any manner.
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