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. 90711 sy 20110825-s00006/70710 sy 20100625-s00003 no.a1802-1/6 LV8548M overview the LV8548M is a 2-channel low saturation voltage forward/reverse motor driver ic. it is optimal for motor drive in 12v system products and can drive either two dc motors, one dc motor using parallel connection, or a 2-phase bipolar stepping motor with 1-2 phase excitation mode drive. functions ? dmos output transistor adoption (upper and lower total ron=1 ? ? for one power supply (the control system power supply is unnecessary.) ? ? our motor driver ic, lb1948m, and compatible pin ? ? it is possible to connect it in parallel (parallel, connected operation of drive ch). ? specifications 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 * 1.05 w operating temperature topr -30 to +85 c storage temperature tstg -40 to +150 c *: when mounted on the specified pr inted 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. bi-cmos integrated circuit 12v low saturation voltage drive forward/reverse motor driver orderin g numbe r : ena1802a
LV8548M no.a1802-2/6 recommended operating range 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 electrical characteristics at ta = 25 c, v cc = 12v parameter symbol conditions ratings unit min typ max power supply voltage i cc 0 standby mode in1=in2=in3=in4=?low? 1 a i cc 1 it is "high" from in1 as for either of in4. load opening 1.7 2.3 ma input current i in v in =5v 35 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 vthr et 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) 3086b pin assignment sanyo : mfp10s(225mil) 1 10 5 6 (0.5) 1.7max 1.0 0.35 5.0 0.15 6.4 (1.5) 0.1 4.4 0.63 v cc 1 2 3 4 5 10 9 8 7 6 in1 in2 in3 in4 out1 out2 out3 out4 gnd LV8548M pd max - ta 0 1.05 1.5 0.55 90 30 60 0 120 -30 0.5 1.0 ambient temperature, ta -- c allowable power dissipation, pd max -- w
LV8548M no.a1802-3/6 block diagram 1. at two dc motor drive 2. at one stepping motor drive lvs input logic h-side pre l-side pre h-side pre l-side pre v cc v cc out1 out2 m m out3 out4 in1 in2 in3 in4 tsd vref gnd 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 in3 in4 tsd vref gnd
LV8548M no.a1802-4/6 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 in1 motor drive control input pin. driving control input pin of out1 (10pin) and out2 (9pin). it combines with in2 pin (3pin) and it fights desperately. the digital input it, range of the "l" level input is 0 to 0.7(v), range of the "h" level input is from 1.8 to 5.5(v). pwm can be input. pull-down resistance 100(k ? ) is built into in the pin. it becomes a standby mode be cause all in1, in 2, in3, and in4 pins are made "l", and the circuit current can be adjusted to 0. 3 in2 motor drive control input pin. driving control input pin of out1 (10pin) and out2 (9pin). it combines with in1 pin (2pin) and it uses it . pwm can be input. with built-in pull-down resistance. 4 in3 motor drive control input pin. driving control input pin of out3 (8pin) and out4 (7pin). it combines with in4 pin (5pin) and it uses it . pwm can be input. with built-in pull-down resistance. 5 in4 motor drive control input pin. driving control input pin of out3 (8pin) and out4 (7pin). it combines with in3 pin (4pin) and it uses it . pwm can be input. with built-in pull-down resistance. 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). operation explanation 1. dcm output control logic input output remarks in1 in2 in3 in4 out1 out2 out3 out4 l l l l off off off off stand-by l l off off 1ch stand-by h l h l forward l h l h reverse h h l l brake l l off off 2ch stand-by h l h l forward l h l h reverse h h l l brake v cc out1 (out3) out2 (out4)
LV8548M no.a1802-5/6 2. about the switch time from the stand-by state to the state of operation when in1, in2, in3, in4 are "l", this ic has complete ly stopped operating. after the time of reset of about 7 s of an internal setting, it shifts to a prescribed output status corre sponding to the state of the input when the signal enters the input terminal. reset of about 7 s doesn't hang even if the motor is driven from the stand-by state when either ch drives and the output becomes an output status corresponding to the state of the input. as for full power tr between the reset time, turning off is maintained. 3. example of current wave type in each excitation mode when stepping motor parallel input is controlled. ? 2 phase excitation ? 1-2 phase excitation application circuit example 1. example of applied circuit when two dc motor driving 2. example of applied circuit when one stepping motor driving in1 100 (%) -100 0 100 -100 0 in2 in3 in4 i1 i2 in1 100 (%) -100 0 100 -100 0 in2 in3 in4 i1 i2 out1 10 9 8 7 6 out2 out3 out4 gnd 2 3 4 5 in4 in3 in2 in1 v cc LV8548M m m 1 c1 + out1 10 9 8 7 6 out2 out3 out4 gnd 2 3 4 5 in4 in3 in2 in1 v cc LV8548M m 1 c1 + logic input logic input in1 out1 in3 out3 1ch input on 2ch input on 2ch input on input off stand-by state stand-by state 1ch side forward 2ch side forward (reset time) (reset time) there is no reset time when another ch drives.
LV8548M ps no.a1802-6/6 3. example of applied circuit when connecting it in parallel the use likened to h bridge 1ch is shown possible in the figure below by connecting in1 with in3, in2 with in4, out1 with out3, out2, and out4. (i o max=2.0a, upper and lower total r on =0.5 ) * 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. this catalog provides information as of september, 2011. specifications and information herein are subject to change without notice. out1 10 9 8 7 6 out2 out3 out4 gnd 2 3 4 5 in4 in3 in2 in1 v cc LV8548M m 1 c1 + logic input 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.
|
