30712 sy 20120117-s00010 no.a2014-1/5 http://onsemi.com semiconductor components industries, llc, 2013 june, 2013 lb1973ja overview the lb1973ja is a two-channel h-bridge driver that suppor ts for low saturation draive operation. it is optimal for h-bridge drive of stepping motors (af and zoom) in portable equipment su ch as camera cell phones. features ? two-channel h-bridge driver ? 2 phase excitation, 1-2 phas e excitation drive are possible ? 2ch simultaneous connection is possible ? the range of the operation voltage is wide.(1.8v to 7.5v) ? parallel input interface ? built-in thermal protection 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 max - v sf to v cc +v sf v input voltage v in max -0.3 to +8.0 v spark killer di order direction electric i sf max 1000 ma ground pin source current i gnd per channel 1000 ma allowable power dissipation pd max *mounted on a bord 800 mw operating temperature topr -20 to +85 c storage temperature tstg -40 to +150 c * mounted on a specified board : 114.3mm 76.1mm 1.6mm, glass epoxy 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. allowable operating ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 1.8 to 7.5 v high-level input voltage v ih r in = 1k ? 1.3 to 7.5 v low-level input voltage v il r in = 1k ? -0.3 to +0.5 v monolithic digital ic two-channel h-bridge driver orderin g numbe r : ENA2014 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.
lb1973ja no.a2014-2/5 electrical characteristics at ta = 25c, v cc = 1.9v ratings parameter symbol conditions min typ max unit i cco 1 v cc = 1.9v,in1 to in4 = low level 0.01 1 a i cco 2 v cc = 3v,in1 to in4 = low level 0.01 1 a i cc 1 in1 = high level,in2 to in4 = low level 18 25 ma source current i cc 2 in1 = high level,in2 to in4 = low level, v cc = 3v 19 27.5 ma v out 11 i out = 270ma,v cc = 1.9v to 3.6v, ta = -20 to 85 c v out = upper tr and under tr in1 = high level, in2 to in4 = low level supplementation: standard similar as for in2 to in4 = high level 0.2 0.3 v output saturation voltage1 (single connection) v out 12 i out = 350ma,v cc = 1.9v to 3.6v, ta = -20 to 85 c v out = upper tr and under tr in1 = high level, in2 to in4 = low level supplementation: standard similar as for in2 to in4 = high level 0.25 0.4 v v out 21 i out = 270ma,v cc = 1.9v to 3.6v, ta = -20 to 85 c v out = upper tr and under tr out1-3,out2-4 short. in1 and in3 = high level, in2 and in4 = low level supplementation: standard similar as for in2 and in4 = high level 0.12 0.2 v output saturation voltage2 (parallel connection) v out 22 i out = 500ma,v cc = 1.9v to 3.6v, ta = -20 to 85 c v out = upper tr and under tr out1-3,out2-4 short. in1 and in3 = high level,in2 and in4 = low level supplementation: standard similar as for in2 and in4 = high level 0.2 0.35 v output electric current with the parasitic element i pa v in = 1.9 to 3.6v, ta = -20 to 85 c *1 9 ma input current i in v in = 1.9v 32 70 a themal shutdown operation temperature ttsd *2: design guarantee 140 c temperature hysteresis width ? t *2: design guarantee 20 c spark killer diode reverse current i s (leak) v cc -out = 8v, v in = low level 10 a forword voltage v sf i sf = 400ma, v in = low level 1.7 v *1: output electric current with the parasitic element_i pa : the current value that the off ch(- free) output is pulled at the time of one side ch drive by a parasitic element *2: design guarantee value and does not measure * vsf: the current order direction voltage true in a time
lb1973ja no.a2014-3/5 package dimensions unit : mm (typ) 3178b pin assignment truth table input output in1 in2 in3 in4 out1 out2 out3 out4 mode low low low low off off off off standby mode high low high low channel 1, forward low high - - low high - - channel 1, reverse high low high low channel 2, forward - - low high - - low high channel 2, reverse high high - - - - high high the logic output for the first high-level input is produced. sanyo : ssop16(225mil) 5.2 4.4 6.4 0.22 0.65 (0.33) 18 9 16 0.5 0.15 1.5max 0.1 (1.3) out1 out2 out3 out4 in2 gnd in1 in3 in4 v cc (top view) 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 16 nc nc nc nc nc nc -20 0 20 40 60 80 100 85 0 0.2 0.4 0.6 0.8 1.0 pd max -- ta allowable power dissipation,pd max - w ambient temperature, ta -- c mounted on a specified board : 114.3mm x 76.1mm x 1.6mm glass epoxy
lb1973ja no.a2014-4/5 stepping motor control example (1) timing chart for 2-phase drive (2) timing chart for 1-2 phase drive in1 in3 i in2 in4 channel 1 output mode forward standby standby reverse forward standby standby forward reverse forward channel 2 output mode forward reverse forward reverse in1 in3 i in2 in4 off off off off channel 1 output mode channel 2 output mode forward standby standby reverse forward standby standby forward reverse forward
lb1973ja ps no.a2014-5/5 block diagram v cc gnd in2 in1 in3 in4 out1 out2 30k 100k 30k 100k 30k 100k 30k 100k control block circuit thermal shutdown circuit out4 out3 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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