91008 ms pc/d2002rm (ot) no.7117-1/7 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 electronics 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. LB11983 overview the LB11983 is a 3-phase full-wave current linear sensorless mo tor driver. it is optimal for refrigerator fan motor drive. features ? current linear driving technique. ? current limiter circuit. ? over saturation prevention circuit for output stage. ? provides coil back emf fg output. ? thermal shoutdown circuit. ? beat lock pervention circuit. specifications maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc max 14.5 v output application voltage v o max 14.5 v input application voltage v i max -0.3 to v cc +0.3 v output current i o max 1.0 a allowable power dissipation pd max independent ic 1.0 w operating temperature topr -30 to +85 c storage temperature tstg -55 to +150 c operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage v cc 7 to 13.8 v monolithic digital ic for fan motor driver for refrigerator 3-phase sensorless motor driver orderin g numbe r : en7117b
LB11983 no.7117-2/7 electrical characteristics at ta = 25 c, v cc = 12v ratings parameter symbol conditions min typ max unit supply current i cc vc = v cc 20 30 ma output saturation voltage 1 v o sat1 i o = 0.4a, source + sink 1.4 2.0 v output saturation voltage 2 v o sat2 i o = 0.8a, source + sink, rf = 0 1.8 2.6 v mcom pin common-mode input voltage range vic 0 v cc -2 v pcout output current 1 ipcou source side -90 a pcout output current 2 ipcod sink side 90 a vcoin input current ivcoin vcoin = 5v 0.1 0.2 a vco minimum frequency fvco min vcoin = open 400 hz vco maximum frequency fvcomax vcoin = 5v 18.5 khz c1, c2 source current ratio rso urce ic1source/ic2so urce -12 +12 % c1, c2 sink current ratio rsink ic1sink/ic2sink -12 +12 % c1 source and sink current ratio rc1 ic1source/ic1sink -35 +15 % c2 source and sink current ratio rc2 ic2source/ic2sink -35 +15 % counter fg output on volt v ol 0.4 v counter fg output off vol v oh 4 v thermal shutdown operating temperature ttsd design target value * 150 180 210 c thermal shutdown hysteresis ttsd design target value * 15 c note : * these items are design target values and are not tested. package dimensions unit : mm (typ) 3021c sanyo : dip20(300mil) 1 10 20 11 0.5 (3.25) 3.3 3.9max 24.0 (0.57) 2.54 1.2 0.25 7.62 6.4 0.51min 1.0 pd max ? ta 0 1.0 0.6 0.4 0.2 1.2 0.8 ? 20 80 85 60 20 40 0 100 ambient temperature, ta ? c allowable power dissipation, pd max ? w independent ic
LB11983 no.7117-3/7 pin assignment u out 20 v out 1 10 rf19 w out 2 nc18 mcom 3 vc17 v cc 4 fc16 LB11983 u in 5 bfgo15 v in 6 gnd14 w in 7 nc13 c1 8 pcout 12 c2 9 vcoin top view 11 cx
LB11983 no.7117-4/7 block diagram (external constant may vary depending on the motor used.) bfgo vco pll c1 c2 pcout 0.1f vcoin cx v cc vc fc 200 200 0.5 gnd rf u out mcom v cc v out w out u in v in w in 200 + - + - thermal shutdown circuit masking circuit rotor position detection circuit startup control circuit 8-divider beat lock preventive circuit upper saturation prevention control output drive circuit soft switching drive circuit timing control circuit
LB11983 no.7117-5/7 pin functions pin no. pin name function equivalent circuit 20 u out 1 v out 2 w out drum motor driver output pin. 19 rf minimum potential of the drum motor driver output transistor. this voltage is detected for constantcurrent control. the current limiter is also activated upon detection of this potential. 20 1 2 19 v cc 5 6 7 10k 20a 3.9 3.9 30k 30k 4 v cc power supply pin. (8 to 13.8v) 3 mcom middle point input pin of motor coil. the coil waveform is detected with reference to this voltage. 5 u in 6 v in 7 w in input pin of the coil waveform detection comparator. connected to each phase output with a built-in resistor of 10k 5 20 1 2 6 7 3 200 200 200 10k 2k v cc 8 c1 9 c2 triangular wave generating capacitor connection pin. this triangsular wave causes soft switching of coil output waveform. v cc vreg 9 8 1k 1/2vreg-vf 2s 15a5 a 15a 10 cx the operating frequency range and minimum operating frequency are determined from the value of capacitor connected to this pin and gnd in the vco circuit. 10 300 vreg v cc 100a 11 vcoin vco circuit voltage input pin. inputs the pcout pin voltage through cr filtering. 50k 10k 1.75v v cc vreg 11 50 a50 a continued on next page.
LB11983 no.7117-6/7 continued from preceding page. pin no. pin name function equivalent circuit 12 pcout vco circuit pll output pin. 12 vreg v cc 14 gnd gnd for others than the output transistor. 15 bfgo fg output to detect motor reverse feeder voltage. (composition of three phases) 15 vreg vreg + vf v cc 100a 5k 16 fc frequency characteristics compensation pin. insertion of a capacitor between this pin and gnd stops oscillation of the current control closed loop. 16 10k 1k 5k vreg v cc 17 vc speed control pin. the control is a constant-current control under current feedback from rf. normally, this pin is connected to v cc for use. 40k 27k 24k 200 vreg v cc 17 50 a50 a
LB11983 ps no.7117-7/7 sample application circuit (reference) notes 1. be sure to connect the vc pin to v cc directly before use. 2. for the constant of capacitor, etc., our value established through examination is given for reference. adjust the value according to the motor to be used when considering this ic. 3. if the output is not oscillated with the motor used, a cap acitor inserted between output coil ends is not necessary. 4. pins 5 through 7 (u in , v in , and w in ) are not to be used by a user. these are connected inside ic and should always be kept independent and open. 5. nc pins (14 and 18) are not connected inside ic and can be used as relay pins. 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 probability. 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. this catalog provides information as of september, 2008. specifications and information herein are subject to change without notice. 0.022f to 0.047f connect to v cc LB11983 v out w out mcom v cc u in v in w in c1 c2 cx 0.022f 0.022f 0.022f 0.022f 0.022f 0.5 0.1f 0.47f 1 2 3 4 5 6 7 8 9 10 u out rf nc vc fc bfgo gnd nc pcout vcoin top view 20 19 18 17 16 15 14 13 12 11 560k
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