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 el ectronics 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. 30409 ms / 60607 ms im b8-5218 / n2502as (ot) no.7192-1/4 LA6581T overview the LA6581T is a low-saturation btl output linear driving motor driver for single-phase bipo lar fan motors. it features quite, low power, high efficiency drive that suppresses reactive current. it is optimal for use in applications that require miniaturization and low noise, such as cpu cooling fan motors and 5 to 12v electronic game products. functions ? single-phase full-wave linear drive with btl output (gain resistance 500 ? to 284k ? , 55db) : suitable for the equipment requiring silent operation, such as ga me equipment, cpu cooler, etc. because of its freedom from switching noise. ? low-voltage operation possible, with wide operable voltage range (3 to 16v) ? low saturation output (upper + lower saturation voltage : v o sat (total) = 0.3v typ, i o = 100ma) : high coil efficiency with low current drain. ic itself does not generate much heat. ? high impedance of hall input pin ? fg output (rotation speed detection output : open collector output) ? heat protection circuit : when the large current flows becaus e of output short-circuit, raising the ic chip temperature above 180 c, the heat protection circuit suppresses the dr ive current, preventing ic burn and breakdown. ? ultraminiature package (msop8: 3.0mm 4.9mm 0.93mm typ) : small substrate wh ile allowing larger blades. specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 18 v output current i out max 0.30 a output withstand voltage v out max 18 v fg output withstand v fg max 18 v fg output current i fg max 5ma continued on next page. monolithic linear ic fan motor driver btl driver single-phase full-wave orderin g numbe r : en7192b
LA6581T no.7192-2/4 continued from preceding page. parameter symbol conditions ratings unit allowable power dissipation pd max 400 mw operating temperature topr -20 to +90 c storage temperature tstg -55 to +150 c * specified board: 20.0mm 10.1mm 0.8mm, paper phenol, wiring density 20%. recommended operating ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 2.5 to 16 v common-phase input voltage range of hall input v icm 0.3 to v cc -1.5 v electrical characteristics at ta = 25 c, v cc = 12.0v, unless es pecially specified. ratings parameter symbol conditions min typ max unit circuit current i cc in - = 5.8v, in + = 6.0v, r l = 14 19 ma out output low voltage v ol i o = 100ma 0.1 0.2 v out output high voltage v oh i o = 100ma 0.1 0.2 v hall bias voltage v hb rh = 360 ? +91 ? 1.85 1.95 2.05 v hall amplifier gain vg 52 55 58 db hall amplifier input current v inr -10 -2 10 a fg output low voltage v fg i fg = 3ma 0.2 0.3 v fg output leakage current i fgl v fg = 7v 30 a thermal protection circuit th * design guarantee 150 180 200 c * design guarantee : design target. measurement with a single unit not made. package dimensions unit : mm (typ) 3245b truth table in - in + out1 out2 fg mode h l h l l l h l h off during rotation ? ? off off ? during overheat protection sanyo : msop8(150mil) 3.0 1.1max 3.0 0.5 4.9 12 8 0.25 0.65 (0.53) (0.85) 0.125 0.08 0 pd max - ta --20 500 400 200 300 100 20 0406080 100 192 ambient temperature, ta - c allowable power dissipation, pd max - mw mounted on a board: 20 10 0.8mm 3 , paper phenol specified board 90
LA6581T no.7192-3/4 pin assignment 1 in + 2 hb 3 in ? 4 out1 8 7 6 5 fg v cc out2 gnd LA6581T top view block diagram 2.0vrg hb out1 out2 fg in + in - gnd v cc h timing chart hall signal output coil current fg pulse
LA6581T ps no.a0706-4/4 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 probabi lity. 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. 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 probabi lity. 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. application circuit example gnd v cc fg out1 out2 in + in ? hb *1 di cr *2 r2 *3 in + in ? hb *5 *4 r1 r2 h h LA6581T elements in substrate *1 : when di to prevent brea kdown in case of reverse connec tion is used, it is necessary to insert a capacitor cr to secure the regenerative current route. similarly, cr is necessary to enha nce the reliability when there is no capacitor near the fan power line. *2 : to obtain hall bias from v cc , carry out 1/2 v cc bias as shown in the figure. linear driving is made through voltage control of the coil by amplifying the hall output. when the hall element output is large, the startup performance and efficiency are impr oved. adjustment of the hall elem ent can reduce the noise further. *3 : when the hall bias is taken from the hb pin, constant-voltage bias is made with about 2.0v. therefore, the hall element can provide the output satisfactory in temper ature characteristics. adjust ment of the hall output amplitude is made with r1. (when v cc = 12v, the step *2 above proves ad vantageous for ic heat generation.) *4 : keep this open when not used. *5 : when the wiring from the hall output to ic hall input is long, noise may be carried through the wiring. this catalog provides information as of march, 2009. specifications and information herein are subject to change without notice.
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