n2206 / 83002 rm (im) no.7111-1/5 any and all sanyo semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. consult with your sanyo semiconductor representative nearest you before using any sanyo semiconductor products described or contained herein in such applications. sanyo semiconductor assumes no responsibility 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 products described or contained herein. lb11862m overview the lb11862m is optimal for small fan applications, especially cpu cooling fans, due to its single-phase full-wave drive technique and the compact package. low switching noise and effective motor drive are further advantages. features ? support for 5v/12v dual power supply voltage. ? built-in regenerative circuit allows use of reverse-connecti on protection diode. ? built-in hall amplifier with hysteresis (supports core without commutating pole). ? built-in lockup protection and au tomatic recovery circuits. ? latch-type lockup detection output (rd) is low during rotation and high during stop. ? hall bias pin and start/stop pin allow reduced current drain in standby mode. ? built-in thermal protection circuit. specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum supply voltage v cc max 17 v maximum output current i out max 0.8 a maximum output withstand voltage v out max 17 v rd maximum output withstand voltage v r max 17 v rd maximum output current i r max 5ma hb maximum output current i b max 10 ma st maximum input voltage v st max 15 v allowable power dissipation pd max mounted on the s pecified board* 800 mw operating temperature topr -40 to +85 c storage temperature tstg -55 to +150 c *specified board : 114.3 76.2 1.5 mm, glass epoxy. orderin g numbe r : enn7111 monolithic digital ic single-phase full-wave fan motor driver
lb11862m no.7111-2/5 allowable operating range at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 3.8 to 16.8 v st input high-level voltage sth 3 to 14 v st input low-level voltage stl -0.3 to 0.4 v hall input common-mode input voltage range vicm 0.2 to v cc -1.5 v electrical characteristics at ta = 25 c, v cc = 5v, unless otherwise specified. ratings parameter symbol conditions min typ max unit operating mode (ct = l, st = l) 12 17 ma lock protecting mode (ct = h, st = l) 2.5 4.0 ma circuit current i cc standby mode (st = h) 110 150 a lock detection capacitor charging current ict1 vct = 0.2 v 1.5 2.1 3.0 a capacitor discharging current ic t2 vct = 3.0 v 0.21 0.35 0.50 a capacitor charging/discharging current ratio rct rcd = ict1/ict2 5.0 6.0 8.0 - ct charging voltage vc t1 2.55 2.75 2.95 v ct discharging voltage vc t2 1.6 1.8 2.0 v output low-level voltage v ol i o = 200 ma 0.2 0.3 v output high-level voltage v oh i o = 200 ma 3.9 4.1 v hall input sensitivity vhn zero peak value. (including offset, hysteresis) 7 15 mv rd output pin low-level voltage vrd ird = 5 ma 0.1 0.3 v rd output pin leakage current irdl vrd = 15 v 30 a hb output low-level voltage vh bl ihb = 5 ma 1.0 1.3 v st pin input current ist vst = 5 v 75 100 a package dimensions unit : mm 3086b-mfp10s (225mil) [ lb11862m ]
lb11862m no.7111-3/5 truth table st in- in+ ct out1 out2 rd hb mode h - - - off off off off standby h l h l l h l l h l l operating l h off off off l lock protection (the rd output is latched at ?l?-level in operating mode and ?h?-level in stop mode.) pin assignment sample application circuit (1) d1 is used to prevent ic destruction caused by reverse-connection. it can be omitted if no problems are expected. (2) c2 is used to apply a kickback regenerative curre nt when using the ic with the coil current over 500 ma. (3) when ct is not used, it should be connected to ground. (4) when rd, st, and hb are not used, they should be left open. gnd v cc rd out1 out2 c1=0.47 to 1 f ct st hb in+ in- h d1 c2 motor coil gnd out1 ct in+ in- rd hb st v cc out2 lb11862m top view
lb11862m no.7111-4/5 block diagram
lb11862m no.7111-5/5 ps specifications of any and all sanyo semiconductor 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. sanyo semiconductor co., ltd. strives to supply high-quality high-reliability products. however, any and all semiconductor products fail with some probability. it is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage 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. in the event that any or all sanyo semiconductor products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining 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 permission of sanyo semiconductor co., ltd. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equipment, refer to the "delivery specification" for the sanyo semiconductor product that you intend to use. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. this catalog provides information as of august, 2002. specifications and information herein are subject to change without notice.
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