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. 40809 ms 20090323-s00009 no.a1433-1/4 LA6595T overview the LA6595T is a single-phase bipolar fan motor driver that achieves quite operation, power savings, silent operation and high efficiency that suppresses reactive current through btl output linear drive. it provides lock protection and rotation detection circuits on chip, and is optimal for applications that require high reliability and low noise, such as notebook personal computers, power supplies in consumer electronic equipment, car audio, and cpu cooling systems. features ? btl output single-phase full-wave lin ear drive (gain resistor : 1 to 360k ? , 51db) ? supports low-voltage drive and features a wide usable voltage range (2.2 to 14.0v) ? low saturation output (high side + low side saturation voltage : v o sat (total) = 1.2v (typical), i o = 200ma) ? built-in lock protection and automatic return circuits ? built-in rd (rotation detection) output ? thermal protection circuit ? small-sized, high ther mal capacity package specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 15 v output current i out max 0.5 a output voltage v out max 15 v rd output pin output withstand voltage v rd max 15 v rd output current i rd max 10 ma allowable power dissipation pd max mounted on a specified board* 400 mw operating temperature topr -30 to +90 c storage temperature tstg -55 to +150 c * specified board : 114.3mm 76.1mm 1.6mm, glass epoxy board. orderin g numbe r : ena1433 monolithic linear ic btl drive single-phase full-wave fan motor driver
LA6595T no.a1433-2/4 recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 2.2 to 14.0 v common-phase input voltage range of hall input v icm 0 to v cc -1.5 v electrical characteristics at ta = 25 c, v cc = 12v, unless otherwise specified. ratings parameter symbol conditions min typ max unit i cc 1 drive mode (ct = low) 36 9 ma circuit current i cc 2 lock protection mode (ct = high) 2.5 5 7.5 ma lock detection capacitor charge current i ct 1 0.9 1.2 1.5 a capacitor discharge current i ct 2 0.10 0.18 0.25 a capacitor charge/discharge current ratio r ct r cd = i ct 1/i ct 2 5 6.5 8 ct charge voltage v ct 1 1.3 1.5 1.7 v ct discharge voltage v ct 2 0.3 0.5 0.7 v out output low saturation voltage v ol i o = 200ma 0.25 0.45 v out output high saturation voltage v oh i o = 200ma 0.95 1.2 v hall input sensitivity vhn zero peak value (including offset and hysteresis) 7 15 mv rd output pin low-level voltage v rd i rd = 5ma 0.15 0.3 v rd output pin leakage current i rdl v rd = 15v 1 30 a package dimensions unit : mm (typ) 3245b 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 -30 0 30 60 90 120 0 500 400 300 200 100 pd max -- ta ambient temperature, ta -- c allowable poswer dissipation, pd max -- mw specified board: 114.3 76.1 1.6mm 3 glass epoxy board. 192
LA6595T no.a1433-3/4 pin assignment 1 in + 2 in ? 3 ct 4 out1 5 6 7 8rd v cc out2 gnd top view LA6595T block diagram in + in ? ct out1 rd v cc out2 gnd h ct=0.47 to 1 f control circuit charge/discharge circuit discharge pulse truth table in ? in + ct out1 out2 rd mode high low high low low low high low low high low during rotation ? ? high off off off lock protection
LA6595T ps no.a1433-4/4 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. application circuit example in + in ? ct out1 rd v cc out2 gnd h cr di *1 r2 r2 *4 *2 *3 circuit board mounted cpmponents *1. if the diode di (which protects the ic destruction by reverse connection) is used, it is necessary to insert the capacitor cr and provide a regenerative cu rrent route. similarly, if there is no nearby capacitor on the fan power supply line, cr will also be necessary to improve reliability. *2. if the hall sensor bias is taken from v cc , a 1/2 v cc bias, as shown in the figure, must be used. linear drive is implemented by amplifying the hall sensor output and applying voltage control to the coil. if the hall effect sensor provides a strong output, the startup characteristics and efficiency will be good, then even quieter operation will be achieved by adjusting the hall effect sensor. *3. this pin must be left open if unused. *4. if the line from the hall sensor output to the hall sensor input of ic are long, noise may enter the system from that line. if that becomes a problem, insert a capacitor as shown in the figure. this catalog provides information as of april, 2009. specifications and information herein are subject to change without notice.
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