41812 sy/32812 sy 20120323-s00008/31512 sy no.a2039-1/5 http://onsemi.com semiconductor components industries, llc, 2013 june, 2013 lv8549mc overview the lv8549mc is a 2-channel low saturation voltage forward/re verse motor driver ic. it is optimal for full step motor drive in 12v system products. functions ? dmos output transistor adoption (upper and lower total ron=1 typ) ? the compact package (soic10) is adopted. ? v cc max=20v, i o max=1a ? for one power supply (the control system power supply is unnecessary.) ? current consumption 0 when standing by specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum power supply voltage v cc max -0.3 to +20 v output impression voltage vout -0.3 to +20 v input impression voltage v in -0.3 to +6 v gnd pin outflow current ignd for ch 1.0 a allowable power dissipation pd max * 1.0 w operating temperature topr -30 to +85 c storage temperature tstg -40 to +150 c *: when mounted on the specified printed circuit board (57.0mm 57.0mm 1.6mm), glass epoxy, both sides 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. recommendation operating conditions at ta = 25 c parameter symbol conditions ratings unit power supply voltage v cc 4.0 to 16 v input ?h? level voltage v in h +1.8 to +5.5 v input ?l? level voltage v in l -0.3 to +0.7 v bi-cmos integrated circuit 12v low saturation voltage drive stepping motor driver orderin g numbe r : ena2039b 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.
lv8549mc no.a2039-2/5 electrical characteristics at ta = 25 c, v cc = 12v ratings parameter symbol conditions min typ max unit i cc 0 standby mode ena=l 1 a power supply voltage i cc 1 ena=h 1.7 2.3 ma input current i in v in =5v 30 50 65 a thermal shutdown operating temperature ttsd design certification 150 180 210 c width of temperature hysteria ttsd design certification 40 c low voltage protection function operation voltage vthv cc 3.3 3.5 3.65 v release voltage vthret 3.55 3.8 3.95 v output on resistance (upper and lower total) r on i out =1.0a 0.7 1 1.25 output leak current i o leak v o =16v 10 a diode forward voltage vd id=1.0a 1.0 1.2 v package dimensions unit : mm (typ) 3426a pin assignment v cc 1 2 3 4 5 10 9 8 7 6 in1 in2 out1 out2 out3 out4 gnd lv8549mc ena nc pd max - ta 0 1.5 50 30 10 0 -30 0.5 1.0 0.52 70 -10 90 ambient temperature, ta -- c allowable power dissipation, pd max -- w specified circuit board: 57.0 57.0 1.6mm 3 glass epoxy board, both sides 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
lv8549mc no.a2039-3/5 block diagram pin function pin no. pin name pin function equivalent circuit 1 v cc power-supply voltage pin. v cc voltage is impressed. the permissible operation voltage is from 4.0 to 16.0(v). the capacitor is connected for stabilization for gnd pin (6pin). 2 ena motor drive control input pin. it shifts from the stand-by state to a prescribed output operation corresponding to the state of the input when the ena pin becomes a standby mode by l, the circuit current can be adjusted to 0, and it makes it to h. it is a digital input, and the range of l level input is 0 to 0.7(v) and the range of h level input are 1.8 to 5.5(v). pwm can be input. pull-down resistance 100(k ? ) is built into in the terminal. 3 in1 motor drive control input pin. driving control input pin of out1 (10pin) and out2 (9pin). pwm can be input. with built-in pull-down resistance. 4 in2 motor drive control input pin. driving control input pin of out3 (8pin) and out4 (7pin). pwm can be input. with built-in pull-down resistance. 5vreg 5 nc 6 gnd ground pin. 7 out4 driving output pin. the motor coil is connected bet ween terminal out3 (8pin). 8 out3 driving output pin. the motor coil is connected bet ween terminal out4 (7pin). 9 out2 driving output pin. the motor coil is connected bet ween terminal out1 (10pin). 10 out1 driving output pin. the motor coil is connected bet ween terminal out2 (9pin). v cc out1 (out3) out2 (out4) lvs input logic h-side pre l-side pre h-side pre l-side pre v cc v cc out1 out2 m out3 out4 in1 in2 ena tsd vref gnd
lv8549mc no.a2039-4/5 operation explanation 1. stm output control logic input output ena in1 in2 out1 out2 out3 out4 state l - - off off off off stand-by l l h l h l step 1 h l l h h l step2 h h l h l h step3 h l h h l l h step4 2. about the switch time from the stand-by state to the state of operation when ena pin are "l", this ic has completely stopped operating. after the time of reset (about 7 s of an internal setting) it shifts to a prescribed output st atus corresponding to the st ate of the input when the si gnal enters the ena pin. 3. example of current wave form at full-step mode. in1 100 (%) -100 0 100 -100 0 in2 i1 i2 step1 step2 step3 step4 ena out1 out3 in1 ena on in2 (*in1 and in2 are full-step input) (out2 is a reverse phase of out1) (out4 is a reverse phase of out3) stand-by state (reset time) excitation drive of two phase
lv8549mc ps no.a2039-5/5 applied circuit example * bypass capacitor (c1) connected between v cc -gnd of all examples of applied ci rcuit recommends the electric field capacitor of 0.1 a to 10 a. confirm there is no problem in operation in the state of th e motor load including the te mperature property about the value of the capacitor. mount the position where the capacitor is mounted on nearest ic. out1 10 9 8 7 6 out2 out3 out4 gnd 2 3 4 5 nc in2 in1 ena v cc lv8549mc m 1 c1 + logic input 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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