View LA6502_1381473.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

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. 60607 ms pc b8-7414 no.7816-1/11 LA6502 overview this LA6502 is a 5ch driver for cd and dvd spindle driver : 3-phase linear sensor-less drive btl 4ch. features ? spindle driver block 1) 3-phase sensor-less motor driver 2) soft switching drive 3) analog input v type control 4) current limiter incorporated 5) counter electromotive fg output 6) reverse prevention circuit incorporated ? threading, focusing, tracking, and loading blocks 1) btl-amp type ? common block 1) thermal shutdown circuit in corporated (des ign guarantee) 2) mute function incorporated (pin 3) 3) op-amp (1ch) incorporated (open collector output) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit motor supply voltage 1 v cc 1 spindle, sled, loading power supply 14.5 v motor supply voltage 2 v cc 2 focus, tracking power supply 14.5 v pd max1 independent ic 0.8 w allowable power dissipation pd max2 mounted on a specified board. * 1.7 w * mounted on a board : 114.3 76.1 1.6mm 3 , glass epoxy board. continued on next page. monolithic linear ic 5ch driver for cd and dvd spindle driver : 3-phase linear sensor-less drive btl 4ch orderin g numbe r : en7816b
LA6502 no.7816-2/11 continued from preceding page. parameter symbol conditions ratings unit maximum input voltage v in max -0.3 to v cc +0.3 v maximum output current 1 i o max1 spindle output 1.0 a maximum output current 2 i o max2 sled output 0.6 a maximum output current 3 i o max3 focus, tracking output 0.85 a maximum output current 4 i o max4 loading output 0.6 a operating temperature topr -20 to +75 c storage temperature tstg -55 to +150 c recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit motor supply voltage 1 v cc 1 spindle, sled, loading power supply 4.5 to 13.8 v motor supply voltage 2 v cc 2 focus, tracking power supply 4.5 to 13.8 v electrical characteristics at ta = 25 c, v cc 1 = 8v, v cc 2 = 8v, vref = 1.65v ratings parameter symbol conditions min typ max unit common current drain i cc mute1, 2, 3 : h, v c = vref 30 40 ma standby current i ccq mute1, 2, 3 : l 0.3 0.5 ma vref pin input voltage ra nge vref 1.0 3.3 v vref pin input current ivcref v c = vref = 1.65v -0.2 -0.1 a mute1, 2, 3 l voltage vmute-l 0.5 v mute1, 2, 3 h voltage vmute-h 2.8 4.5 v mute1, 2, 3 input current imute vmute = 3v 60 100 a thermal shutdown operation temperature tsd designed target value 150 180 210 c thermal shutdown hysteresis width tsd designed target value 40 c note) design guarantee values, not measured. spindle driver output saturation voltage v o sat_sp i o =0.5a, source+sink 1.8 2.4 v ctl pin input voltage range vctl_sp 0 5 v ctl pin input current ivctl_sp v c = vref = 1.65v -0.2 -0.5 a control gain gvco_sp 0.29 0.34 0.39 v/v control dead zone width 1 vcdz1_sp forward +90 150 mv control dead zone width 2 vcdz2_sp revers -150 -90 mv current limiter voltage vlim_sp 0.36 0.4 0.44 v vcoin input current ivcoin_sp vcoin = 3v 1 a vco min frequency fvcomin_sp cx = 0.01 f, vcoin = open 0.35 0.45 0.55 khz vco max frequency fvcomax_sp cx = 0.01 f, vcoin = 5v 36 40 44 khz c1,c2 source current ratio rsource_ sp 1-(ic1 source/ic2 souce) -10 10 % c1,c2 sink current ratio rsink_sp 1-(ic1 sink/ic2 sink) -10 10 % c1 source, sink current ratio rc1_sp ic1 source/ic1 sink 40 60 % c2 source, sink current ratio rc2_sp ic2 source/ic2 sink 40 60 % fgo pin h voltage fgoh_sp fgo resistance 20k , 5v pull-up 4.8 v fgo pin l voltage fgol_sp fgo resistance 20k , 5v pull-up 0.15 0.4 v fr pin input voltage range vfr 0 5 v fr pin input current ifr vfr = 3v 54 100 a thread driver (amp3) output saturation voltage v o sat_3 i o = 0.3a, source+sink 1.5 1.8 v input voltage range v in _3 0 5 v ctl pin input current i in _3 v in = vref = 1.65v -0.5 -0.1 a current gain gvco_3 17.8 18.7 19.6 db output offset voltage v o off_3 note) -50 0 50 mv continued on next page.
LA6502 no.7816-3/11 continued from preceding page. ratings parameter symbol conditions min typ max unit focusing and tracking drivers (amp1, 2) output saturation voltage v o sat_1 i o = 0.6a, source+sink 1.8 2.2 v input voltage range v in _1 0 5 v ctl pin input current i in _1 v in = vref = 1.65v -0.5 -0.1 a control gain gvco_1 11.6 12.7 13.8 db output offset voltage v o off_1 note) -50 0 50 mv loading driver (amp4) output saturation voltage v o sat_4 i o = 0.2a, source+sink 1.3 1.6 v input voltage range v in _4 0 5 v ctl pin input current i in _4 v in = vref = 1.65v -0.5 -0.2 a control gain gvco_4 17.8 18.7 19.6 db output offset voltage v o off_4 note) -50 0 50 mv op-amp output l voltage v o l_5 i o = 1ma, sink 0.2 0.4 v input voltage range v in _5 0 5 v input offset voltage v i off_5 -5 0 5 mv note) the pre-opamp in the previous stage is used as buffer. mute function mode mute1 : h spindle : on mute2 : h focus, tracking, sled : on mute3 : h loadeng : on package dimensions unit : mm (typ) 3278 sanyo : hssop48(375mil) 17.8 0.2 10.5 7.9 0.65 0.2 (6.2) (0.45) (4.9) 0.1 2.4 max (2.2) 0.65 1.3 1.5 124 48 25 pd max -- ta ambient temperature, ta ? c allowable power dissipation, pd max ? w -20 0 100 0 2.5 2.0 20 40 60 80 1.5 1.0 0.5 0.8 1.7 0.48 1.02 specified board : 114.3 76.1 1.6mm 3 glass epoxy when mounted on a board independent ic
LA6502 no.7816-4/11 pin assignment 1 2 amp2in + amp2in - 3 a mp2out 4 v cc 2 5 nc 6 nc 7 out2r out2f 9 out1r 10 out1f 11 out3r 12 mgnd 13 mgnd 14 out3f 15 out4r 16 out4f 17 wout 18 vout 19 uout 20 nc 21 sprf 22 v cc 1 23 fr 24 mcom gnd mute1 mute2 mute3 nc amp1in + amp1in - amp1out spfgo spc2 spc1 spcx spvcoin ampin + ampin - ampout amp3out amp3in - amp3in + amp4in + amp4in - sgnd spfc v ref spctl gnd 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 8 LA6502 top view
LA6502 no.7816-5/11 block diagram (in certain applications, snubber may be added to the spindle motor coil output.) amp1in - amp1in + a mp1out out1f out1r amp2in - amp2in + a mp2out out2f out2r amp4in + out4f amp4in - out4r spfgo spc1 0.015 f 0.015 f spc2 v cc spvcoin 0.47 f 0.01 f 0.1 f spcx v ref fc spctl -- + -- + -- + -- + -- + -- + -- + 1 / 2(v cc 2 -- vf) 1 / 2(v cc 1 -- vf) -- + -- + pll vco fr 560k 200 200 1 / 8 tsd mute mute1 mute2 mute3 sgnd mgnd uout mcom sprf v cc 1 ampout vout wout ampin + ampin - out3r amp3out amp3in + amp3in - v ref out3f -- + soft switching drive circuit mask circuit timing control circuit startup control circuit rotor position detection circuit output drive circuit
LA6502 no.7816-6/11 sample application circuit (spindle block) note) the external constant is for reference only and the optimum constant may differ from one motor to another. 1 2 amp2in + amp2in - 3 amp2out 4 v cc 2 5 nc 6 nc 7 out2r out2f 9 out1r 10 out1f 11 out3r 12 mgnd 13 mgnd 14 out3f 15 out4r 16 out4f 17 wout 18 vout 19 uout 20 nc 21 sprf 22 v cc 1 23 fr 24 mcom gnd mute1 mute2 mute3 nc amp1in + amp1in - amp1out spfgo spc2 spc1 spcx spvcoin ampin + ampin - ampout amp3out amp3in - amp3in + amp4in + amp4in - sgnd spfc vref spctl gnd 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 8 0.1 f 0.1 f 0.47 f 0.1 f 0.015 f 0.015 f 0.1 f 0.1 f 1.65v control voltage 0.1 f 0.1 f
LA6502 no.7816-7/11 pin function pin no. pin name function pin voltage equivalent circuit 22 v cc 1 power pin to provide the voltage of all other than btl-amp1 and 2 output transistors. 4.5 to 13.8 4 v cc 2 power pin of the btl-amp1 and 2 outputs. 4.5 to 13.8 28 sgnd gnd for all other than output. 12 13 mgnd output gnd other than spindle 46 mute3 47 mute2 48 mute1 mute function control pin. mute : h ? motor drive mute : l ? drive off ?h? is for 2.8v or more. ?l? is for 0.5v or less. mute1 : sp mute2 : btl1, 2, 3 mute3 : btl4 0v to 4v 1 amp2in + op-amp non-inverted input pin. 2 amp2in - op-amp inverted input pin. 0v to 5v 3 amp2out op-amp output pin. 8 out2f btl-amp forward output pin 7 out2r btal-amp reverse output pin 44 amp1in + op-amp non-inverted input pin. 43 amp1in - op-amp inverted input pin. 0v to 5v continued on next page. 20k 100k 40k 10k v cc 1 46 5v 47 48 300 300 5v 1 2 5k 5k 5k 40k 20k 20k 40k 5v v cc 1v cc 2 3 7 8 300 300 44 43
LA6502 no.7816-8/11 continued from preceding page. pin no. pin name function pin voltage equivalent circuit 42 amp1out op-amp output pin. 10 out1f btl-amp forward output pin. 9 out1r btl-amp reverse output pin. 31 amp3in + op-amp non-inverted input pin. 32 amp3in - op-amp inverted input pin. 0v to 5v 33 amp3out op-amp output pin of previous stage. 14 out3f btl-amp forward output pin. 11 out3r btl-amp reverse output pin. 30 amp4in + non-inverted input pin. 0.3v to 5v 29 amp4in - btl-4ch reference voltage pin 1v to 4v 16 out4f btl-amp forward output pin. 15 out4r btl-amp reverse output pin. continued on next page. 5k 5k 5k 40k 20k 20k 40k 5v v cc 1v cc 2 42 10 9 300 300 31 32 5k 5k 5k 40k 10k 10k 40k 5v v cc1 33 14 11 300 5v 300 29 30 5k 5k 5k 40k 10k 10k 40k 5v v cc1 15 16
LA6502 no.7816-9/11 continued from preceding page. pin no. pin name function pin voltage equivalent circuit 36 ampin + op-amp non-inverted input pin. 35 ampin - op-amp inverted input pin. 0v to 5v 34 ampout op-amp output pin. 19 spuout 18 spvout 17 spwout spindle motor driver output pin. 21 sprf spindle motor driver output transistor power pin detects this voltage for constant current control /the current limiter also detects this potential and is activated. 24 mcom spindle motor coil mid-point input pin detects the coil voltage waveform with reference to this voltage. 39 spc1 40 spc2 spindle triangular wave generating capacitor connection pin with this triangular wave, the coil output waveform is soft switched. continued on next page. 300 300 36 35 v cc 1 5v 34 19 v cc 1 17 21 18 v cc 1 17 18 19 24 17 18 19 2k 10k 10k 200 200 200 1 / 2 v cc -- vf 1k v cc 1 5v 40 39
LA6502 no.7816-10/11 continued from preceding page. pin no. pin name function pin voltage equivalent circuit 38 spcx with the value of a capacitor connected between this pin and gnd in the spindle vco circuit, the operation frequency range and minimum operation frequency are determined. 27 spfc frequency characteri stics compensation pin. with a capacitor inserted between this pin and gnd, oscillation of the current control system closed loop can be stopped. 25 spctl spindle speed control pin control is the constant current control by applying current return from drs. 0v to 5v 26 vref spindle speed control reference pin btlamp internal vref buffer input pin. 1v to 3.3v 41 spfgo spindle motor counter electromotive voltage detection fg output pin (synthesis of three phases) 37 spvcoin drum block vco circuit voltage input pin pcout pin voltage is filtered with cr for input. continued on next page. 5v 300 38 5v 27 v cc 1k 20k 5v 300 25 300 300 300 300 300 5v 26 v cc 1 5v 41 4.7k 1k 5v 37
LA6502 ps no.7816-11/11 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. continued from preceding page. pin no. pin name function pin voltage equivalent circuit 23 fr spindle block v-type control switching pin. fr : h ? vref < spctl drive fr : l ? vref < spctl drive ?h? is for 2.8v or more. ?l? is for 0.5v or less. 0v to v cc 1 this catalog provides information as of january, 2007. specifications and information herein are subject to change without notice. this catalog provides information as of june, 2007. specifications and information herein are subject to change without notice. 40k v cc 1 25k 23

▲Up To Search▲

Price & Availability of LA6502

	To Download LA6502 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .