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22807 ms pc b8-6750 no.a0595-1/13 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. LA6505 overview the LA6505 is a six-chan nel driver for cd and md players and recorders. it adopts direct pwm drive output in the spindle motor drive to minimize heat generation at high spindle speeds. it also features a soft switching function that minimizes spindle motor drive noise by making the current changes at each phase switch more gradual. the sled motor driver implements two-phase stepping driv e and supports direct pwm inputs. the LA6505 uses a btl amplifier design for the focus and tracking driver blocks , and a similar design for the loading driver as well. functions (1) spindle motor driver block ? three-phase brushless motor driver ? adopts a current feedback direct pwm drive design ? supports analog inputs and features a v-type control amplifier ? built-in oscillator circuit (the oscillator fre quency can be set with an external capacitor.) ? soft-switching drive ? fg output for one phase (the u phase) ? built-in reverse rotation prevention circuit ? built-in hall sensor power supply (npn transistor, open collector output) ? current limiter setting function (the limit is set by the resistor rf.) ? standby mode (ss) function that operates for the spindle driver and btl amplifiers. (2) sled motor driver block ? adopts a current feedback direct pwm drive design ? supports stepping motors ? muting function (mute-sld; only applies to the sled driver) (3) sled motor driver block ? btl amplifier based design ? built-in input operational amplifiers ? built-in level shifting circuits ? standby mode (ss) function monolithic linear ic for cd-rom, dvd-rom and md players six-channel driver orderin g numbe r : ena0595
LA6505 no.a0595-2/13 (4) loading block ? btl amplifier based design ? muting function (mute-load; only applies to the loading driver) (5) other circuits ? built-in thermal shutdown circuit (design guarantee) specifications absolute maximum ratings at ta = 25 c parameter symbol conditions ratings unit supply voltage - v cc v cc s signal system supply voltage, v cc vs-* 14 v supply voltage - p-spd vs-spd spindle block power stage supply voltage 14 v supply voltage - p-sld vs-sld sled block power stage supply voltage 14 v supply voltage - p-btl vs-btl btl am plifier block power stage supply voltage 14 v pd max1 independent ic 0.85 w allowable power dissipation pd max2 when mounted on the specified circuit 1.72 w maximum input voltage v in max 6v maximum output current 1 i o max1 spindle block 1.25 a maximum output current 2 i o max2 sled block output 0.5 a maximum output current 3 i o max3 outputs for the focus, tracking, and loading blocks 0.5 a operating temperature topr -30 to +85 c storage temperature tstg -55 to +150 c * specified board size : 76.1mm 114.3mm 1.6mm, glass epoxy board. recommended operating conditions at ta = 25 c parameter symbol conditions ratings unit supply voltage s v cc -s v cc -s vs-* 6 to 13 v supply voltage p v cc -p* v cc -s vs-* 6 to 13 v * : the term "vs-*" refers to vs-spd, vs-btl, and vs-sld. electrical characteristics at ta = 25 c, v cc = vs-spd = vs-sld = vs-btl = 8v, vref = 1.65v, rf-spd = 0.5 , unless especially specified. ratings parameter symbol conditions min typ max unit overall no-load current drain i cc -on1 ss : h, mute sled/load : h 50 58 ma i cc -off ss/mute sled/mute load : l 12 20 ma thermal shutdown operating temperature tsd junction temperature, design guarantee 150 180 210 c thermal shutdown hysteresis tsd junction temperature, design guarantee 40 c vref-amp vref-amp offset voltage v off -vref the potential difference between vref and vref-out -7 7 mv vref pin input current ivcre f vc = vref = 1.65v 1 a output on/off function (s/s : spindle driver) low-level input voltage v ss l 0.5 v high-level input voltage v ss h 2.0 v input current i ss h 60 a mute-sld/load : sled driver and loading driver low-level input voltage v mute l 0.5 v high-level input voltage v mute h 2.0 v input current i mute h 60 a continued on next page.
LA6505 no.a0595-3/13 continued from preceding page. ratings parameter symbol conditions min typ max unit spindle motor driver block (output block) v o satl i o = 0.5a, v o (sink) 0.4 0.45 v output saturation voltage v o sath i o = 0.5a, v o (source) 1.2 1.5 v i o -leak (l) sink side 100 a output leakage current i o -leak (h) source side 100 a hall amplifier block input offset voltage v off -hall -6 6 mv input bias current ihb 1 3 a input voltage range v i cm 1.3 4 v minimum hall sensor input level v h in 60 mv pwm oscillator pwm oscillator frequency fosc between osc and ground : 330 pf 65 86 105 khz input amplifier vc pin input current ivctl vc = vr ef = 1.65v, spindle motor driver input 1 a forward gain gdf+ 0.4 0.46 0.52 v/v reverse gain gdf- 0.4 0.46 0.52 v/v forward limiter voltage vrf1 0.42 0.5 0.58 v reverse limiter voltage vrf2 0.42 0.5 0.58 v startup voltage v in 1.5 1.8 v input dead zone width vdz-spdl 150 200 250 mv fg pin : speed pulse output low-level output voltage v fg l ifg = 2ma 0.4 v hall comparator hysteresis v fg hys 4 8 15 mv hall sensor power supply hall sensor power supply voltage v h i h = 5 ma, with respect to the ground potential. 0.8 1.2 v allowable current i h 20 ma sled driver block (output block) maximum output voltage v o -sld i o = 0.2a 6.35 6.8 v i o leak (l) sink side 100 a output leakage current i o leak (h) source side 100 a input amplifier v in pin input current ivctl vc = vref = 1.65v, sled driver input 1 a i/o gain vg-sld 0.2 0.23 0.26 v/v output limit voltage li mt-sld 0.21 0.25 0.29 v startup voltage v in 1.5 1.8 v input dead zone width vdz-sld 100 150 200 mv input voltage range v in -op (sld) design guarantee, input buffer amplifier 0 v cc -1.5 v output on delay time ton 2 10 s output off delay time toff 2 10 s switching time tsw 2 10 s focus and tracking (btl-amp) output offset voltage v off -btl input operational amplifier buffer -50 50 mv maximum output voltage v o -btl i o = 0.3a 5.7 6 v i/o gain v g -btl 3.6 4 4.4 times slew rate sr across the btl amplifier output 1 v/ s input voltage range v in -op (btl) design guarantee, input buffer amplifier 0 v cc -1.5 v continued on next page.
LA6505 no.a0595-4/13 continued from preceding page. ratings parameter symbol conditions min typ max unit input operational amplifier output offset voltage v off -op -7 7 mv output sink current sink-op 2 ma output source current source-op 300 500 a input voltage range v in -op 1 v/ s input voltage range v in -op (btl) 0 v cc -1.5 v loading block (btl-amp) output offset voltage v off -load -50 50 mv maximum output voltage v o -load i o = 0.5a 6 6.6 v i/o gain v g -load 3.6 4 4.4 times slew rate sr 1 v/ s input voltage range vin-load design guarantee, input buffer amplifier 0 v cc -1.5 v package dimensions unit : mm (typ) 3278 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 sanyo : hssop48(375mil) ambient temperature, ta ? c allowable power dissipation, pd max ? w pd max ? ta 0 1 2 1.5 1.72 0.89 0.44 0.5 2.5 ? 30 80 60 20 40 0 100 specified circuit board : 76.1 114.3 1.6mm 3 glass epoxy board mounted on a circuit board independent ic
LA6505 no.a0595-5/13 block diagram - + signal system v cc fg (speed detection) oscillator frequency setting muting, sled system on/off osc - + - + - + current limiter setting ff 0.5v osc ff osc 0.25v spindle and btl amplifier on/off control logic output control - + - + - + - + ff osc 0.25v current limiter current limiter mute (loading) hall system bias power supply level shifter level shifter level shifter level shifter level shifter signal system ground saturation detection v cc _s u + u - vs_spd u-out v-out w-out rf_spdl fil1 fil2 gnd_s fg osc v + v - w + w - vref v in _spdl vref_out v in 1 - v in 1 + v in 1 mute_sld ss gnd_btl vs_btl gnd_sled v o 1 - v o 1 + v in 2 - v in 2 + v in _sld1 v in 2 v in _load hb mute_load v o 2 - v o 2 + v o - sld1 v o + sld1 rf_sld1 v in _sld2 v o - sld2 v o + sld2 rf_sld2 vload - vload +
LA6505 no.a0595-6/13 pin assignment and application circuit example for the diodes between the spindle outputs (pins 15, 16, and 17), use schottky barrier diodes with current capacities of over 1a, small temperature coeffici ents, and low reverse currents. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 fr fr 10k 10k 10k 10k 10k 1 1 1 300 300 330pf 10k 10k 10k m m 1 0.5 0.1 f 0.1 f s_v cc vref_in mute_load v in _spdl v in _load v in 2 + vref_out v in 2 - rf_sld1 v in 2 mute_sled v in 1 + v in _sld2 v in 1 - v in _sld1 v in 1 sld_gnd vs_btl v o + sld1 v o 2 - v o - sld1 v o 2 + v o + sld2 v o 1 - v o -sld2 v o 1 + rf_sld2 vload - u-out vload + v-out gnd_btl w-out w - rf_spd w + ss v - vs_spd v + fil1 u - fil2 u + fg osc hb s_gnd
LA6505 no.a0595-7/13 pin functions pin no. pin descriptions 1 v cc _s signal system power supply and btl amplifier output stage power supply 2 mute_load loading output on/off control 3 v in _load loading input 4 vref-out vreg amplifier (buffer) output 5 rf_sld1 sled1 output current detection 6 mute_sled sled output on/off control 7 v in _sld2 sled2 input 8 v in _sld1 sled1 input 9 gnd_sld power system ground, sled 10 v o + sld1 sled1 + output 11 v o - sld1 sled1 - output 12 v o + sld2 sled2 + output 13 v o - sld2 sled2 - output 14 rf_sld2 sled2 output current detection 15 u-out u phase output 16 v-out v phase output 17 w-out w phase output 18 rf_spdl output current detection (spindle) 19 ss btl amplifier (channels 1 and 2) and spindle driver on/off control 20 vs_spdl spindle output stage power supply 21 fil1 source side output oscillation prevention 22 fil2 sink side output oscillation prevention 23 fg fg output. this is an open co llector output that outputs one of the hall phases (the u phase). 24 hb hall sensor bias power supply (open collector output) 25 gnd_s signal system ground 26 osc pwm oscillator frequency setting (a capacitor is connected between this pin and ground.) 27 u + hall sensor bias input (u + ) 28 u - hall sensor bias input (u - ) 29 v + hall sensor bias input (v + ) 30 v - hall sensor bias input (v - ) 31 w + hall sensor bias input (w + ) 32 w - hall sensor bias input (w - ) 33 gnd_btl power system ground and btl amplifier (including loading driver) 34 vload + loading driver output (+) 35 vload - loading driver output (-) 36 v o 1 + channel 1 output (+) 37 v o 1 - channel 1 output (-) 38 v o 2 + channel 2 output (+) 39 v o 2 - channel 2 output (-) 40 vs_btl power system ground and btl amplifier (including loading driver) 41 v in 1 channel 1 input, channel 1 operational amplifier output 42 v in 1 - channel 1 input, input operational amplifier inverting input 43 v in 1 + channel 1 input, input operational amplifier noninverting input 44 v in 2 channel 2 input, channel 1 operational amplifier output 45 v in 2 - channel 2 input, input operational amplifier inverting input 46 v in 2 + channel 2 input, input operational amplifier noninverting input 47 v in _spdl spindle input 48 vref_in reference voltage input
LA6505 no.a0595-8/13 pin description pin no. pin function equivalent circuit 43 42 41 46 45 44 v in 1 + v in 1 - v in 1 v in 2 + v in 2 - v in 2 channel 1 and channel 2 (btl amplifier) input. operational amplifier inputs and outputs. 3 v in _load loading driver input. 8 7 47 v in _sld1 v in _sld2 v in _sld3 sled and spindle driver inputs. 48 vref_in vref-in input (vref amplifier input). 36 37 38 39 34 35 v o 1 + v o 1 - v o 2 + v o 2 - vload + vload - outputs for channel 1, channel 2, and the loading driver. continued on next page. 10 a 10 a 12ma v in 1/2 v in 1 + /v in 2 + v in 1 - /v in 2 - gnd_s v cc _s gnd_s v cc _s 12.5 a 12.5 a v in _sld1/ v in _sld2 gnd_s v cc _s vref_in gnd_s 8 a v cc _s v o 1 - /v o 1 - v o 2 - /v o 2 - load + /load - ff vs_btl devices market with a broken circle are diodes added for structural reasons. 10 a 10 a 12ma v in _load gnd_s v cc _s
LA6505 no.a0595-9/13 continued from preceding page. pin no. pin function equivalent circuit 20 18 15 16 17 vs_spd rf_spdl u-out v-out w-out spindle and other output pins. 5 14 9 10 11 12 13 rf_sld1 rf_sld2 sld_gnd v o + sld1 v o - sld1 v o + sld2 v o - sld2 sled system output pins. 27 28 29 30 31 32 u + u - v + v - w + w - hall sensor bias inputs. 26 osc oscillator frequency setting. this pin sets the pwm oscillator frequency. 23 fg fg output. this pin outputs a signal synchronized with the u phase. (single hall sensor output) continued on next page. sld_gnd v o - sld1/v o - sld2 v o - sld1/v o + sld2 fr fr rf_sld1/rf_sld2 v cc _ sv cc _ s devices market with a broken circle are diodes added for structural reasons. u - /v - /w - u + /v + /w + gnd_s gnd_s 100 a v cc _s v cc _s osc gnd_s v cc _s 30 a fg gnd_s v cc _s vs_spd u-out v-out w-out rf_spdl fr fr fr devices market with a broken circle are diodes added for structural reasons.
LA6505 no.a0595-10/13 continued from preceding page. pin no. pin function equivalent circuit 24 hb hall bias output. 6 2 19 mute_sled mute_load ss ss and muting control inputs. these inputs control the on/off states of the corresponding outputs. hb gnd_s v cc _s mute_sled /mute_load /ss gnd_s v cc _s 75k 100k
LA6505 no.a0595-11/13 spindle truth table (for forward rotation, v in spdl > vref) hall sensor input output status u v w input u + u - v + v - w + w - source sink fg output (1) h l h l l h w v h (2) h l l h l h w u h (3) h l l h h l v u h (4) l h l h h l v w l (5) l h h l h l u w l (6) h l h h l l h u v l (for reverse rotation, v in spdl < vref) hall sensor input output status u v w input u + u - v + v - w + w - source sink fg output (1) h l h l l h v w h (2) h l l h l h u w h (3) h l l h h l u v h (4) l h l h h l w v l (5) l h h l h l w u l (6) h l h h l l h v u l (u + > u - ) (u + < u - ) (u + > u - ) (u + < u - ) (w + > w - ) (w + < w - ) (source) (sink) (source) (sink) (source) (sink) phase u phase v phase w phase u phase v phase w (hall sensor input) (output current)
LA6505 no.a0595-12/13 output on/off control functions 1. relationships between muting inputs and output states mute sled sled output h on l off 2. relationship between s/s and the corresponding output mute sled spindle btl-amp h on l off * : the btl amplifier and the loading driver input amplifie r operate regardless of the mu te inputs. the output on/off states are controlled only by muting the output amplifiers. * : when both the mute and s/s pins are low, the outputs go to the high-impedance stat e. however, note that the output amplifier gain setting feedback resistor is connected. btl amplifier i/o relationship * : the loading driver input operational amplifier is a voltage-follower circuit (v in and v in - are shorted together). * : to make the i/o relationship easier to see in figure 7, block diagram, the diagram is written as though gain is applied in the input amplifier. in the actual circuit, however, the gain occurs in the output amplifier. mute sled loading driver output h on l off v in * vref-in v o * + v o *- v in - v in + 11k 44k 44k 22k 22k 11k vrff-out level shifter
LA6505 ps no.a0595-13/13 spindle and sled gain and limiter (spindle) i/o gain rf resistor ( ) forward/reverse limiter current (a) (a/v) (v/v) 0.5 1.0 1.0 0.5 1.0 0.5 0.5 (sled) i/o gain rf resistor ( ) forward/reverse limiter current (a) (a/v) (v/v) 0.5 1.0 0.50 0.25 0.50 0.25 0.25 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. this catalog provides information as of february, 2 007. specifications and information herein are subject to change without notice. forward gain input dead zone width forward forward limit voltage reverse limit voltage reverse forward gain

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