30712 sy 20120112-s00002 no.a2016-1/4 http://onsemi.com semiconductor components industries, llc, 2013 june, 2013 lb1846mc overview the lb1846mc is 2-channel low-voltage, low saturation voltage type bidirectional motor driver ic that is optimal for use as 2-phase stepping motor drivers in printers, cameras an d other portable equipment. th e output circuits are of the bipolar type, with pnp transistors in the upper side and npn transistors in the lower side, and they achieve low saturation output and low power characteristics despite being provided in a miniature package. the lb1846mc products can directly c ontrol a motor from signals from a microcontroller. the lb1846mc is optimal for 1-2 phase excitation drive for 2-phase stepping motors using 4-input logic (in1, in2, in3 and in4). another point is that these ic include built-in thermal shutdown circuits so that ic scorching or burning is prevented in advance even if the ic output is shorted. functions ? optimal for 1-2 phase excitation drive for 2-phase stepping motors ? standby current: zero ? low saturation voltage. v o (sat) = 0.55v typical at i o = 400ma ? thermal shutdown circuit ? no limitations on the magnitude relationship between the power supply voltage (v cc ) and the input voltage (v in ) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max -0.3 to +8.0 v output voltage v out v cc + v sf v input voltage v in -0.3 to +8.0 v ground pin outflow current i gnd per channel 800 ma allowable power dissipation pd max when mounted* 870 mw operating temperature topr -20 to +75 c storage temperature tstg -40 to +150 c *1: when mounted on the specified printed circuit board (114.3mm 76.2mm 1.5mm), 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 low-voltage/low satura tion voltage type bidirectional motor driver orderin g numbe r : ENA2016 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.
lb1846mc no.a2016-2/4 allowable operating ranges at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 2.5 to 7.5 v input high-level voltage v ih 2.5 to 7.5 v input low-level voltage v il -0.3 to +0.7 v electrical characteristics at ta = 25 c, v cc = 5v ratings parameter symbol conditions min typ max unit i cc 0 in1, 2, 3, 4 = 0v 0.1 10 a current drain i cc 1 in1, 3 = 3v, in2, 4 = 0v 30 40 ma v out 1 v in = 3v or 0v, v cc = 3 to 7.5v, i out = 200ma 0.27 0.4 v output saturation voltage v out 2 v in = 3v or 0v, v cc = 4 to 7.5v, i out = 400ma 0.55 0.8 v input current i in v in = 5v 150 200 a spark killer diode reverse current i s (leak) 30 a forward voltage v sf i out = 400ma 1.7 v package dimensions unit : mm (typ) 3420 pin assignment sanyo : mfp10sk(225mil) 1 10 2 0.8 max 1.55 1.0 0.35 5.0 0.15 6.2 (1.5) 0.05 4.4 0.5 out4 10 out3 9 out1 8 out2 7 gnd top view 6 v cc 1 in4 2 in3 3 in1 4 in2 5 lb1846mc pd max -- ta 0 400 522 200 600 1000 800 870 60 40 80 100 020 --20 allowable power dissipation, pdmax - mw ambient temperature, ta - c
lb1846mc no.a2016-3/4 block diagram truth tables in1 in2 in3 in4 out1 out2 out3 out4 note l l l l off off off off standby h l l l h l off off h l h l h l h l l l h l off off h l l h h l l h h l l h l l l h off off l h l h l h l h l l l h off off l h h l l h h l l h 1-2 phase excitation h h - - - - h h the logic output for the first high-level input is produced. *2 note: *1 "-" indicates a "don ? t care" input. *2 if two high levels (h/h) are input to the in1/in2 pins with the timing shown in (1) in the figure below, then the in2 input that arrived later will be ignored and the ic will function as though an h/l combination is applied to the in1/in2 pins. similarly, the timing shown in (2 ) results in a l/h combination on the in1/in2 pins. v cc out1 stepping motor out2 out3 out4 in1 in2 in3 in4 gnd thermal shutdown circuit control block l in1(in3) h h l in2(in4) l h (1) l in1(in3) l h l in2(in4) h h (2)
lb1846mc ps no.a2016-4/4 8 6 24 7 59 13 0 0 10 20 30 40 50 8 6 24 7 59 13 0 i in -- v in 0 40 80 120 160 200 240 280 v cc =v in , in1 / 2 / 3 / 4=h / l / h / l v cc =5v 0 0.2 0.4 0.6 0.8 1.0 0.7 0.5 0.1 0.3 0.6 0.4 0 0.2 v out -- i out v cc =v in =4.0v i cc - v cc characterstics power-supply voltage, v cc - v current drain, i cc - ma input current, i in - a output saturation voltage, v out - v input voltage, v in - v input current, i out - a 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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