orderin g numbe r : ena1550 bi-cmos lsi two channels constant-current h-bridge driver LV8081GQ overview the LV8081GQ is a two-channel constant-current driver th at supports low-voltage operation. it is optimal for constant-current drive of stepping motors (af and zoom ) in portable equipment such as camera cell phones. features ? two channels constant-current h-bridge driver ? built-in position detection comparator, sw for the photo reflector (independent control) ? supports both 2 phase excitation drive and 1-2 phase excitation drive. ? implemented in a low-power mos ic process. ? ultraminiature easy to solder uc t16 package (2.6 2.6 0.6mm) ? built-in thermal shutdown circuit and low voltage shutdown circuit. ? 1.8v input interface with battery supply. ? out1-3 short , out2-4 short and reg1-2 is short-circuited, and it is possible to correspond as 1ch driver. specifications absolute maximum ratings at ta = -30 to 85 c(it becomes a design certification excluding 25 .) parameter symbol conditions ratings unit maximum supply voltage v cc , vm max 6.5 v output voltage v out max out1, out2, out3, out4 6.5 v input voltage v in max cont, in -0.3 to +6.5 v ground pin source current ignd per channel 400 ma allowable power dissipation pd max mounted on a circuit board.* 700 mw operating temperature topr -30 to +85 c storage temperature tstg -40 to +150 c * specified circuit board : 40 50 0.8mm 3 : 4-layer (2s2p) glass epoxy printed circuit board specifications of any and all sanyo semiconductor co.,l td. 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 ' sproductsor 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 (home appliances, av equipment, communication device, office equipment, industrial equ ipment etc.). the products mentioned herein shall not be intended for use for any "special application" (medica l equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, t ransportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of re liability and can directly threaten human lives in case of failure or malfunction of the product or may cause har m to human bodies, nor shall they grant any guarantee thereof. if you should intend to use our products for app lications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. if there is n o consultation or inquiry before the intended use, our customer shall be solely responsible for the use. 82609 sy 20071126-s00002 no.a1550-1/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ allowable operating ratings at ta = -30 to 85 c(it becomes a design certification excluding 25 . ) parameter symbol conditions ratings unit supply voltage v cc 2.5 to 6.0 v renge of fixed corrent setting i o 100ma or more is the design certification. 70 to 250 ma high-level input voltage v ih 1.25 to v cc v low-level input voltage v il cont, in -0.3 to 0.5 v electrical characteristics at v cc = 3.0v ,ta = -30 to 85 c(it becomes a design certification excluding 25 .) ratings parameter symbol conditions min typ max unit i cco in = 0v 0.1 1 a i cco 1 in = 3v 0.7 1 ma current drain i cco 2 v cc = 6.5v, in = 6.5v 0.85 1.1 ma ron1 v cc = 3.0v (high and low side total) en = 3.0v, i out = 100ma 2.0 3.0 output on resistance ron2 v cc = 5.0v (high and low side total) en = 5.0v, i out = 100ma 1.50 2.0 i out 1 between rfg and ground : 1 94 100 106 ma constant-current output i out 2 between rfg and ground : 0.5 (design specification) 188 200 212 ma output turn-on time trise with rfg1 and rfg2 shorted to ground 1.3 3 s output turn-off time tfall with rfg1 and rfg2 shorted to ground 0.25 0.7 s position detection voltage (high level) v h 1.0 1.06 v position detection voltage (low level) v l 0.74 0.8 v detection voltage hysteres is hys 0.165 0.18 0.195 v comparator input current value i compin v compin = 0v 0.15 0.3 a comparator output saturation voltage v o comp i o = 0.5ma 0.12 0.21 v pi/pr pin resistance ronpipr i o = 10ma 17 32 pi/pr pin current i pi/pr 20 ma i in 1 v in = 3v 50 85 a input current i in 2 v in = 6.5v 120 155 a note : the design specification items are design guarantees and are not measured. package dimensions unit : mm (typ) 3341 no.a1550-2/9 sanyo : uct16(2.6x2.6) 2.6 0.25 2.6 0.6 0.4 (0.035) (0.55) (0.125) (c0.116) (0.13) 0.5 top view side view side view bottom view 21 16 -30 -10 10 30 50 70 90 0 0.2 0.4 0.6 0.8 1.0 pd max -- ta 0.36 0.7 allowable power dissipation,pd max - w ambient temperature, ta - c mounted on a specified board : 50.0mm x 40.0mm x 0.8mm glass epoxy 4-layer substrate www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ pin assignment (uct16) rfg1 out1 out2 out3 out4 in2 cont gnd compin pi/pr (top view) 1 16 15 14 13 5 6 7 8 2 3 4 12 11 10 9 rfg2 in3 in4 in1 v cc compout block diagram vcc 0.1v rfg2 in 4 in 2 in1 lvs tsd vm gnd rfg1 cont in3 stm 1.0v compout compin pi/pr l o g i c 10k 10k 10k 10k 60k 60k 60k 60k pi sensor out1 out2 out3 out4 0.1uf micro computer micon signal constant-current calculation : i out = 0.1 rf example : when an i out of 100ma is required, rf must be 1 . usage notes the constant current is set by the resource rf connected between rfg and ground according to the formula shown above. in the electrostatic destruction diode, the terminal pipr, and the terminal comp, other terminals are the upper and lower diode specifications only in a lower diode. no.a1550-3/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ truth table input output in1 in2 in3 in4 cont out1 out2 out3 out4 comp & pipr mode low low low low low off off off off off standby mode low high low high channel 1, reverse high low high low channel 1, forward high high - - low low off off channel 1, brake mode low high low high channel 2, reverse high low high low channel 2, forward - - high high high off off low low on channel 2, brake mode note : the "-" input unstable state. when off, a high-impedance state. ? the ena goes to the standby state with a low-level input , and to the operating state with a high-level input. ? the control input switches the forward/reverse mode. ? the comparator and pipr can independently control the terminal cont. it is irrele vant to the state of in4 from in1. pin description pin no. pin name description equivalent circuit 1 2 3 4 5 16 out1 out2 out3 out4 rfg2 rfg1 1-4 : output pins h-bridge type output pins pins 1 and 2 are paired and pins 3 and 4 are paired. 5, 16 : current sensing resistor connection pins connect the current sensing resistor between these pins and ground to detect the output currents for constant current control. pin 16 corresponds to the out put from pins 1 and 2 and pin 5 to the output from pins 1 and 2. - + 10k 0.1v v cc 1 5 2 6 7 8 9 10 in3 in4 in1 in2 cont logic input pins v cc gnd 6 11 gnd ground continued on next page. no.a1550-4/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ continued from preceding page. pin no. pin name description equivalent circuit 12 compin photo reflector position sensing comparator input v cc 1k gnd 12 13 compout photo reflector position sensing comparator output this pin serves as an open-collector output of the npn transistor. 1k gnd 13 14 pi/pr a switch, with nmos open-drain output, used to turn on/off the power supply of the position sensor unit. when using this switch, connect the position sensor unit between this pin and the v cc pin. on/off control of this switch is accomplished by cont pin. setting the cont pin high turns on the switch. 6 v cc gnd 15 v cc power supply pin timing chart (1) stepper motor timing chart timing chart for 2-phase drive channel 1 output mode in1 in3 iin2 in4 forward standby standby reverse forward standby standby forward reverse forward channel 2 output mode forward reverse forward reverse no.a1550-5/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ (2) timing chart for 1-2 phase drive (slow decay mode) channel 1 output mode in1 in3 iin2 in4 channel 2 output mode forward brake brake brake brake standby standby reverse forward standby standby forward reverse forward photosensor position detection application circuit example (a) application circuit compin v cc compout tr ic peripheral circuits : position sensor block sensor power supply microcontroller power supply ic internal circuits : position detection circuit pi/pr no.a1550-6/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ (b) timing chart v cc v cc cont compin 1.00v hysteresis : 0.2 v microcontroller power supply transistor drive region compout pi/pr conparator and pipr operation area standby standby no.a1550-7/9 www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ no.a1550-8/9 a ?n cco current drain, i 01234567 3 4 5 6 12 8 01234567 supply voltage, v cc ?v 0 0.5 0.1 0.2 0.3 0.4 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1 1.5 0 0.3 0.4 0.5 0.1 0.2 0.6 output current, i o ?a position detection circuit threshold voltage 0 0.5 1 1.5 2 2.5 3 3.5 0.8 0.85 0.95 0.9 1 1.05 input voltage, v in ?v pi/pr pin current (v cc = 3v/5v) 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02 pi/pr pin current ? a pi/pr pin voltage ? v 0.095 0.096 0.097 0.098 0.099 0.1 0.101 0.102 0.103 0.104 0.105 03 4 5 6 12 7 supply voltage, v cc ?v output current, i o ?a 07 supply voltage, v cc ?v current drain, i cco 1?ma ? v vsat ?v v o output voltage, i cco ? v cc supply voltage, v cc ?v in input current (v in = 3v) i cco 1 ? v cc output on resistance (high and low side total) constant-current output (between rfg and ground : 1 ) v cc = 3v v cc = 5v v cc = 3v v cc = 5v 0 10 20 30 40 50 60 70 80 90 100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 5 10 15 20 25 30 35 40 45 50 a ? input current, i www.datasheet.co.kr datasheet pdf - http://www..net/
LV8081GQ sanyo semiconductor co.,ltd. assumes no responsib ility for equipment failures that result from using products at values that exceed, even momentarily, rate d values (such as maximum ra tings, operating condition ranges, or other parameters) listed in products specif ications of any and all sanyo semiconductor co.,ltd. products described or contained herein. sanyo semiconductor co.,ltd. strives to supply high-qual ity high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. it is possible that these probabilistic failures or malfunction could give rise to acci dents 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 e vents cannot occur. such measures include but are not limited to protective circuits and error prevention c ircuits for safe design, redundant design, and structural design. upon using the technical information or products descri bed 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 f or 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. information (including circuit diagr ams and circuit parameters) herein is for example only; it is not guaranteed for volume production. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equi pment, 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 c o.,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 conc erned 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 in formation storage or retrieval system, or otherwise, without the prior written consent of sanyo semiconductor co.,ltd. this catalog provides information as of august, 2009. specifications and information herein are subject to change without notice. ps no.a1550-9/9 www.datasheet.co.kr datasheet pdf - http://www..net/
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