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. 30211 sy 20110215-s00002 no.a1933-1/5 LV5027M overview LV5027M is a high voltage led drive controller which dr ives led current up to 3a with external mosfet. LV5027M is realized very simple led circuits with a few external parts. functions ? high voltage led controller ? low noise switching system - 5 stages skip mode frequency - soft driving ? built-in reference voltage circuit (internal 0.605v) ? short protection circuit specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit maximum input voltage v in max -0.3 to 42 v cs v cs _abs -0.3 to 7 v out pin v out _abs -0.3 to 42 v allowable power dissipation pd max 1.0 w junction temperature tj 150 c operating temperature topr -30 to +125 c storage temperature tstg -40 to +150 c recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit input voltage v in 8.5 to 42 v bi-cmos ic led driver ic orderin g numbe r : ena1933 www.datasheet.co.kr datasheet pdf - http://www..net/
LV5027M no.a1933-2/5 electrical characteristics at ta = 25 c, v in = 12v, unless otherwise specified. ratings parameter symbol conditions min typ max unit reference voltage block built-in reference voltage vref 0.585 0.605 0.625 v vref v in regulation vref_ln v in = 8.5 to 24v 0.5 % under voltage lockout operation start input voltage uvloon 8 9 10 v operation stop input volta ge uvlooff 6.3 7.3 8.3 v hysterisys voltage uvloh 1.7 v oscillation frequency fosc rt = open 50 khz maximum duty maxduty 93 % comparator input offset voltage (between cs and vref) vio_vr 1 10 mv iiocs 160 na input current iioref 80 na cs pin max voltage vom 1 v malfunction prevention mask time tmsk 150 ns thermal protection circuit thermal shutdown temperature tsd *design guarantee 165 c thermal shutdown hysterisys tsd *design guarantee 30 c drive circuit out sink current i o i 500 1000 ma out source current i o o 120 ma minimum on time tmin 200 300 ns v cc current uvlo mode v in current i cc off v in < uvloon 80 120 a normal mode v in current i cc on v in > uvloon, out = open 0.6 ma v in over voltage protection circuit v in over voltage protection voltage v in ovp 24 27 30 v cs terminal abnormal sensing circuit abnormal sensing voltage csocp 1.9 v *: design guarantee (value guaranteed by design and not tested before shipment) package dimensions unit : mm (typ) 3086b sanyo : mfp10s(225mil) 1 10 5 6 (0.5) 1.7max 1.0 0.35 5.0 0.15 6.4 (1.5) 0.1 4.4 0.63 www.datasheet.co.kr datasheet pdf - http://www..net/
LV5027M no.a1933-3/5 pin assignment pin function pin no. pin name function 1 nc no connection 2 nc no connection 3 nc no connection 4 cs led current sensing pin. when this pin voltage exceeds vref (or ref_in), external fe t is off. and if the voltage of the pin exceeds 1.9v, LV5027M turns to latch-off mode. 5 nc no connection 6 gnd gnd pin 7 out driving the external fet gate pin. 8 v in power supply pin. operation: v in > uvloon stop: v in < uvlooff switching stop: v in > v in ovp 9 nc no connection 10 gnd gnd pin nc nc nc nc cs nc gnd gnd out v in LV5027M (top view) www.datasheet.co.kr datasheet pdf - http://www..net/
LV5027M no.a1933-4/5 block diagram sample application circuit v cc ac+ ac- led+ led- out cs gnd built-in regulator reference voltage tsd uvlo ovp oscilator + - 0.605v short protection circuit current limit comparater s r q control logic v in cs gnd out www.datasheet.co.kr datasheet pdf - http://www..net/
LV5027M ps no.a1933-5/5 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. 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. skip frequency function LV5027M contains the skip frequency function for reduction of the peak value of conduction noise. this function changes the frequency as follows. cs pin abnormal stop function if the voltage of the pin exceeds 1.9v, LV5027M turns to latch-off mode and switching is stopping. this catalog provides information as of march, 2011. specifications and information herein are subject to change without notice. switching frequency is changed as follows. ? 0.9 1.1 1.05 1 0.95 0.9 1.1 ? it?s repeated by this loop. this catalog provides information as of march, 2011. specifications and information herein are subject to change without notice. v in out 45k 55k 52.5k 50k 47.5k 45k skip frequency function uvlo unlocked www.datasheet.co.kr datasheet pdf - http://www..net/
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