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. 31109 ms / 83100rm(ki) no.6203-1/5 LB1868M overview the LB1868M is a 2-phase unipolar brushless motor driver. with only a few peripheral parts, lockup protection and automatic recovery can be implemented. the ic can be configured for 12v or 24v operation and a wide range of variations, from low speed to h-high speed and from 60cm to 120cm square using the same pcb. this makes it easy to design highly reliable fan motor installations. features ? output protection zener diode with variable withstand voltage z1, z2 pins open: v o lm = 57v (24v specification) z1, z2 pins shorted: v o lm = 32v (12v specification) external zener diode connected across z1 ? v cc pins: support for fans with large drive current ? external resistor allows configuration for 12v or 24v ? direct hall element connection possible (built-in hall amplif ier with hysteresis supports core without auxiliary electrode) ? built-in output transistor with 1.0a output current (strengthened negative-current s upport for core without auxiliary electrode) ? built-in rotation detection function: low during rotation and high during stop ? built-in lockup protection with automatic recovery ? st pin for motor stop/drive (for standby mode of copiers etc.) ? fg output pin for rotation detection ? bc pin for kickback noise reduction (with 2 external capacitors) ? built-in thermal shutdown specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum input current i cc max t 20ms 200 ma maximum applied output voltage v out max internal v maximum output current i out max 1.0 a current flowing into rd, fg i rd max 10 ma rd, fg applied voltage v rd max 30 v st applied voltage v st max 7.5 v allowable power dissipation pd max mounted on a specified board * 800 mw operating temperature topr -30 to +80 c storage temperature tstg -55 to +150 c * specified board: 20mm 15mm 1.5mm, glass epoxy board. monolithic digital ic 2-phase brushless fan motor driver orderin g numbe r : en6203a
LB1868M no.6203-2/5 allowable operating ranges at ta = 25 c parameter symbol conditions ratings unit input current range i cc 6.0 to 50 ma common mode input voltage range v icm 0.2 to v in -1.5 v st high voltage v st h 4.5 to 7.0 v st low voltage v st l 0 to 0.5 v electrical characteristics at ta = 25 c, i cc = 10ma ratings parameter symbol conditions min typ max unit v o lm1 z1, z2 open 54 57 60 v output limiter withstand voltage v o lm2 z1, z2 short 31 33 35 v v o sat1 i o = 0.5a 0.95 1.2 v output saturation voltage v o sat2 i o = 1.0a 1.15 1.5 v v in voltage v in i cc = 7.0ma 6.4 6.7 7.0 v hall input sensitivity (at zero peak) v hn including offset and hysteresis 20 mv rd, fg output saturation voltage v rd sat i rd = 5ma 0.1 0.3 v ct drain current ic1 c = gnd 2.7 3.8 4.9 a ct discharge current ic2 c = v in 0.19 0.30 0.41 a v th 1 0.77 0.8v in 0.83 v comp input threshold voltage v th 2 0.42 0.45v in 0.48 v st input current i st v st = 5v 80 120 a thermal protection operating temperature tsd design target value * 180 c thermal protection circuit hysteresis ? tsd design target value * 40 c * design target value, do not measurement. package dimensions unit : mm (typ) 3111a sanyo : mfp14s(225mil) 1 14 7 8 8.0 0.15 (1.0) 1.0 0.35 1.7max (1.5) 0.1 4.4 0.63 6.4 -30 0 20 40 60 80 100 0 1.0 0.8 0.6 0.4 0.2 pd max -- ta -20 ambient temperature, ta -- c allowable power dissipation, pd max -- w specified board: 20 15 1.5mm 3 glass epoxy board.
LB1868M no.6203-3/5 pin assignment 1 in ? 2 in + 3 ct 4 st 5 out1 6 7 gnd 14 13 12 11 10 9 v in rd z2 z1 out2 8 nc top view LB1868M bc fg pin function pin no. pin name function 1 in ? hall input + pin. hysteresis amplifier 2 in + hall input ? pin. hysteresis amplifier 3 ct lockup protection time sett ing capacitor pin (0.47 to 4.7 f). 4 st start/stop pin. 5 bc output transistor common base pin. 6 out1 output 1 pin. 9 out2 output 2 pin. 7 gnd gnd pin. 10 z1 external zener diode pin (external zener diode to be connected between power supply and z1). 11 z2 kickback absorption voltage alteration pin (shorted to z1: 12v operation). 12 fg rotation frequency detector pin. 13 rd lockup detection pin (latch type). 14 v in regulated power supply input pin (limiting re sistor to be inserted between power supply and v in ). truth table st in + in ? ct out1 out2 rd fg h l l h h l l h l h l h h l h h l l h l l l l h l l h l h h l h h h h l l or open l h h h h h h * rd is a latch type output
LB1868M no.6203-4/5 block diagram in ? in + ct out1 gnd v in fg z2 z1 out2 l1 l2 h v cc r1 r2 0.47 to 10 f c1 bc st rd control block thermal shutdown constant current source application circuit example (1) 12v supply voltage 1 in ? 2 in + 3 ct 4 st 5 out1 6 bc 7 gnd 14 13 12 11 10 9 v in rd z2 z1 out2 8 nc LB1868M h 330 ? 2k ? v cc 12v 0.47 f fg
LB1868M ps no.6203-5/5 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. (2) 24v supply voltage 1 in ? 2 in + 3 ct 4 st 5 out1 6 bc 7 gnd 14 13 12 11 10 9 v in rd z2 z1 out2 8 nc LB1868M h 1.2k ? 2k ? v cc 24v 0.47 f fg (3) high-power fan (120mm-hh-speed) 1 in ? 2 in + 3 ct 4 st 5 out1 6 bc 7 gnd 14 13 12 11 10 9 v in rd z2 z1 out2 8 nc LB1868M h 2k ? v cc 12v (24v) 0.47 f fg 330 ? (1.2k ? ) vz=12v (24v) this catalog provides information as of march, 2009. specifications and information herein are subject to change without notice.
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