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1/4 rev. a ? 3??t?3?? b
us? structure silicon monolithic integrated circuit
a ? cd-rom/dvd-rom ; 5ch ????? product series 5ch power driver for cd-rom/dvd-rom BD7967EFS type BD7967EFS ? ? ~e??????t pwm ??m?>;`??p???ud{ function ~ pwm drive system is adopted to spindle driver, and highly effective driver can be achieved. ~
?t????? , ????????t ??? btl m?>;`?????q{ ~ linear btl method is adopted to sled motor driver and loading driver block, and a low noise can be achieved. ~????????t?v<??? btl ?>;` ?y??????w1t???v?
w????n{ ~ current feedback type btl is adopted to actuator driver and delay of current effected by load inductance can be reduced.
?07g absolute maximum ratings parameter g? symbol limits o? unit power mos ?o?y power mos power supply voltage spv m 1,2 15 ? 1 v ? ? /btl ?? ??o?y preblock/btl powerblock power supply voltage prev cc , v m act 15 v e??? ?
m??o?y spindle control block power supply voltage spv cc 7 v ?0? power dissipation pd 2 ? 2 w ?^9s c? operating temperature range topr -40 ? 90 ? -9s c? storage temperature range ts t g -55 ? 150 ? ? 1 powermos z?z? (10,12,13 pin) ??{ powermos output terminals (10,12,13 pin) is contained. ? 2 pcb 70mm70mm1.6mm z? )
?p 3 ??z ??3, x?
{ ta 1 25 ?? p?;b? ?xz 1 ?tmv 16.0mw ?na?{ pcb 70mm70mm1.6mm less than copper foil share 3% glass epoxy mounting. reduce power by 16.0mw for each degree above 25 ? . ?^ e (ta=-40 ? +85 ? ) operation condition (ta=-40 ? +85 ? ) ?o?y t`oxz?0????w
?`o<^m{ set the power supply voltage taking allowable dissipation into considering. parameter g? symbol 7 ? min a j typ 7g max o? unit ?? mos ?o?y power mos power supply voltage spvm1,2 spvcc 12 14 v ?????o?y preblock power supply voltage prevcc vmact 12 14 v ??????o?y power block power supply voltage v m act 4.5 5.0 prevcc v e???
m??o?y spindle control power supply voltage spvcc 4.5 5.0 6.0 v ? ?x??8t|?u?got??
?t ? ( ?hxt? ) ?pb?t qt? q`os??d?wpz zb? ?tx]?yxi^m{ 1l
?-x`os??d?{ this product has not been checked for the strategic materials (or service) defined in the foreign exchange and foreign trade co ntrol low of japan so that a verification work is required before exporting it. not designed for radiation resistance.
2/4 rev. a ?>$?
q electrical characteristics ( ?t|wsmv? ta = 2 5 ? , prevcc=spvm1/2=12v, spvcc=v m act=5v, v c =1.65v, rnf=0.165 ? ,rd=0.5 ? ) (unless otherwise noted ta=25 ? , prevcc=spvm1/2=12v, spvcc=v m act=5v, v c =1.65v, rnf= 0.165 ? ,rd=0.5 ? ) parameter symbol min. typ. max. unit condition ??s??v 1 quiescent current1 iq1 26 40 ma vcc loading off ??s??v 2 quiescent current2 iq2 20 32 ma vcc loading on ??s??v 3 quiescent current3 iq3 5 9 ma spvcc ???s??v 1 standby-on current ist1 1 ma vcc s??v circuit current ???s??v 2 standby-on current2 ist2 1 ma spvcc ?? ?3 ?" input dead zone (one side) vdzsp 20 50 100 mv ? z???? input output gain gmsp 1.2 1.5 1.8 arms/v rnf=0.165 ? z? on ? : %," frequency fosc 100 khz z?|????y output offset voltage voofsl -100 0 100 mv z?^?y output saturation voltage vosl 1.55 2.2 v io=500ma
?t?? ??? ? sled driver block ?yb? voltage gain gvsl 18.0 20.0 22.0 db z?|????v output offset current iooac -8 0 8 ma rl=8 ? 7g z? ? max output voltage amplitude vomac 3.6 4.0 v rl=8 ? ????? ??? ? actuator driver block ;a??? trans conductance gm 1.4 1.7 2.0 a/v vin=bias0.2v z?|????y output offset voltage vofld -50 0 50 mv z?^?y output saturation voltage vold 1.55 2.2 v io=500ma ????? ??? ? loading driver block ?yb? voltage gain gvld 13.5 15.5 17.5 db vc ??-x`os??d?{ ? this product is not designed for pr otection again radioactive rays ?
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$~ a1
$ package outlines ~ symbols max 18.85 include burr
3/4 rev. a ??
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$ block diagram ? application circuit z?
? pin description no. symbol description no. symbol description 1 v
m?, j?y?? reference voltage input 44 ctkerr1 2 vintk ??????????? tracking driver input 43 ctkerr2 ????????; `?i??a
?z? connection with capacitor for error amplifier 3 spv m 2 e??? ????o?? 2 spindle driver power supply 2 42 cfil e?????????; `?i??a
?z? connection with capacitor for spindle loop 4 vinfc ??????? focus driver input 41 vnffc ?????<z? feedback for focus driver 5 cfcerr1 40 vmact ???????????o feedback for focus driver 6 cfcerr2 ????????; `?i??a
?z? connection with capacitor for error amplifier 39 vnftk ?????????<z? feedback for tracking driver 7 ldin ??????? loading driver input 38 votk- ????????? ? z? tracking driver negative output 8 spin e???
m??? spindle driver control input 37 votk+ ?????????
y z? tracking driver positive output 9 sprnf e???????vu z?? spindle driver current sense 36 vofc- ????? ? z? focus driver negative output 10 w e?????? w
z? spindle driver output w 35 vofc+ ?????
y z? focus driver positive output 11 spgnd e??? ??? gnd spindle driver power ground 34 pregnd ? gnd pre-ground 12 u e?????? u
z? spindle driver output u 33 powgnd btl ??? gnd btl block power ground 13 v e?????? v
z? spindle driver output v 32 ldo- ???????? ? z? loading driver negative output 14 hw+ ?? ?? w+ ?? hall amp.w positive input 31 ldo+ ????????
y z? loading driver positive output 15 hw- ?? ?? w- ?? hall amp.w negative input 30 slo-
?t????? ? z? sled driver negative output 16 hv+ ?? ?? v+ ?? hall amp.v positive input 29 slo+
?t?????
y z? sled driver positive output 17 hv- ?? ?? v- ?? hall amp.v negative input 28 ctl1 ?????
m??? 1 driver logic control input 1 18 hu+ ?? ?? u+ ?? hall amp.u positive input 27 prev cc ????? ??o loading block power supply 19 hu- ?? ?? u- ?? hall amp.u negative input 26 ctl2 ?????
m??? 2 driver logic control input 2 20 spv m 1 e??? ????o?? 1 spindle driver power supply 1 25 opout |??? z? op amp output 21 hb ???? hall bias 24 slin
?t??????? sled driver input 22 fg fg ?? z? frequency generator output 23 sp + cc e??? ?
m??o spindle block control power supply ??z??????z????????w
y z?z ? z?x??t0b??
q positive/negative output of focus, the tracking, and the loading driver are the polarities to the input.
?t?????w
y z?z ? z?x|??? z? 25pin t0b??
q positive/negative output of the sled motor driver are the polarities to the operational amplifier output (25 pin). ?; w?? cautions in using the ic 1 }
?07gtmmo absolute maximum ratings ? ic tsv?`ox ?gtx g ???x?los?z\w c?opk?y?;zt|?^xejk??d?{`t`z1c?y (spv m z prev cc z v m act z spv cc ) zt| ?^9s c? (topr) srw
?07g?yqh ?z ub?a?uk?z3????`xx|??srw ut??u?pv?d?wpz
?07g ?yq??os? t??u
y^?? ?txz???srw g$s?
?0f?ab?ou|s&m?`?b{ we are careful enough for quality control about this ic. so, there is no problem under normal operation, excluding that it exce eds the absolute maximum ratings. however, this ic might be destroyed when the absolute maximum ratings, such as impressed voltages (spv m z prev cc z v m act z spv cc ) or the operating temperature range(topr), is exceeded, and whether the destruction is short circuit mode or open circuit mode cannot be specified. please take into consideration the physical countermeasures for safety, such as fusing, if a particular mode that exceeds the absolute maximum rating is assumed. 2 }?o??wo
?tmmo reverse polarity connection ?o??wo
?t?? ic u ub?a?uk??b{o
? u-;q`o? ?t?oq ic w?oz?zt|t????t??|??????sw0f?a`oxi^m{ connecting the power line to the ic in reverse polarity (from that recommended) will damage the part. please utilize the direct ion protection device as a diode in the supply line and motor coil line. 7$ 7d 9 9 l l l l l l l l l l $633&/5 %&5&$5&3 41(/% ."53*9 %65: $0/530- )"--".13&7&34&1305&$5 7. '( 065 l l l l 1sf7dd 417dd 7."$5 1px(/% 1sf(/% 54% -&7&- 4)*'5 -&7&- 4)*'5 )"-- )"-- )"-- . . 53"$,*/( */165 '0$64 */165 -0"%*/( */165 41*/%-& */165 41*/%-& '( l 7."$5 7 3e 53"$,*/( 3e '0$64 -0"%*/( 4-*%& $0. 7dd 1sf7dd 7 $0. 01065 4-*%& */ 417dd 7 7dd )"-- #*"4 #3",& .0%& 45"/%#: $0/530-
4/4 rev. a 3 }?o???tmmo power supply line t??woi??t??s
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\?vw&?q`o? ic w?o gnd e?t???? 0.1f ????sw0f?`z0??x?r ???tx?9pw0?uzui\?\qsr ~?
qtejwsm\q? g ]?ywoqz>`oxi^m{ due to return of regenerative current by reverse electromotive force, using electrolytic and ceramic suppress filter capacitors (0.1f) close to the ic power input terminals (vcc and gnd) is recommended. please note: the electrolytic capacitor value decreases at lower temperatures. 4 }??????tmmo gnd line gnd z?w??xmts??^ y6tsmo?z7???ts??ot`oxi^m{?hz?mtaiq ??? gnd ??-tmmo thermal design ?mw?; y6pw?0? (pd) ??qz g ????lh?
?-??loxi^m{ do not exceed the power dissipation (pd) of the package specification rating under actual operation, and please design enough t emperature margins 6 }z?3???q?
tmmo short circuit mode between terminals and wrong mounting ??, xt ? ?z?mz ic w2v???c?t g ]??xi^m{?lo ? ?zh ?z?o??wo
?q?7 ic u ub?a?uk??b{?hzz??z?q ?oz????t? u??sr`o3???`h ?tmmo? uwa?uk??b{ do not mount the ic in the wrong direction and displacement, and be careful about the reverse-connection of the power connector . moreover, this ic might be destroyed when the dust short the terminals between them or gnd. 7 }??w?^tmmo radiation ??pw]?;pxz??^?b?d
quk??bwp]??xi^m{ strong electromagnetic radiation can cause operation failures. 8 } aso tmmo aso (area of safety operation) ic ??;b?mtxzt???w z?????u
?07gzt| aso ?yqsm?o
?`oxi^m{ do not exceed the maximum aso and the absolute maximum ratings of the output driver. 9 }? ?s? (tsd: ??3????? ) tmmo tsd (thermal shut-down) ???3??9s (tj) u 175 ? (typ.) ts?qz? ?s? (tsd s? ) u?^`zt???w?? z??b?o off y6t`?b{? 25 ? (typ.) w9s?a?3uk??b{? ? s?xzkx?p??$k
?t? ic ? ?b?\q?$q`hs?pk?z ic w-zt|- a?$qx`os??d?{?loz\ws???^^do??w?;zt|?^?
2q`h?;x`smpxi^m{ the tsd is activated when the junction temperature (tj) reaches 175 ? (with +/-25 ? (typ.) hysteresis), and the output terminal is switched to off. the tsd circuit aims to intercept ic from high temperature. the guarantee and protection of ic are not purpose. therefore, please do not use this ic after tsd circuit op erates, nor use it for assumption that operates the tsd circuit 10 } z? gnd w???tmmo capacitor between output and gnd z? gnd tgvs????
?^?om? ?z??twa?t?? vcc u 0v ?hx gnd q3???`h???t f?z^?h?vu z?tv?? ub?a?uk? ?b{ z? gnd w???x 0.1f ??b? ?xz ic t?utt?a?uk?wp 1 ?]qt ?cl???loxi^m{?hu*?pw? ?wdtxz ?c?o?|?t`ot?
?`u*??mz?o?|?t`ot? ?xc`oxi^m{^?t
i?>0fq`oz
?qo?tx???a`z v?-wmtx g ]??xi^m{ the stress might hang to ic by connecting the capacitor to the terminal with low impedance. then, please discharge electricity in each and all process. moreover, when attaching or detaching from jig in the inspection process, please turn off the power before mounting the ic, and turn on after mounting the ic, and vi ce versa. in addition, please take into consideration the countermeasures for electrostatic damage, such as giving the earth in assembly process, transportation or preservation. 12 }??z?tmmo input terminal ? ic xt?3?? ic pk?z
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?`om? ?z ?px??)u???? (gnd) ? ( z? a) wz???? (npn) px???? (gnd) ? ( z? b) wz pn
? u/
\??|??q`o?^`?b{^?tz???? (npn) px
2 \w/
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?u?^b?\qt??zs??^w? ???vi\`z??^z{mox uwj ?qs???b{`huloz??z?t???? (gnd ? p , x ) ???m?y?1cb?srz/
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?u?^b??os?mm?`sm?o g t??`oxi^m{?hz ic t?o?y?1c`omsmz??z?t?y?1c`sm pxi^m{?7t?o?y?1c`om? ?t?z??z?x?o?y?$?
qw- a?oq`oxi^m{ this ic is a monolithic ic, and has p+ isolation and p substrate for the element separation. therefore, a parasitic pn junction is firmed in this p-layer and n-layer of each element. for instance, the resistor or the transistor is connected to the terminal as shown in the figure below. when the gnd voltage potential is gre ater than the voltage potential at terminals a on the resistor, at terminal b on the transistor, the pn junction operates as a parasitic diode. in addition, the parasitic npn transistor is fo rmed in said parasitic diode and the n layer of surrounding elements close to said parasitic diode. these parasitic elements are formed in the ic because of the voltage relation. the parasitic ele ment operating causes the interference of circuit operation, then the wrong operation and destruction. therefore, please be careful so as not to operate the parasitic elements by impressin g to input terminals lower voltage than gnd (p substrate). please do not apply the voltage to the input terminal when the power-supply voltage is not impressed. moreover, please impress each input terminal lower than the power-supply voltage or equal to the specified range in the guaranteed voltage when the power-supply voltage is impressing. ic w??? simplified structure of ic 13 }??
???tmmo earth wiring pattern ? ?? gnd qg?v gnd uk? ?zg?v gnd ???q ? ?? gnd ???x ?`z???
w ? qg?vt???y!=u ? ?? gnd w?y?!=^dsm?otz ??w, j:p:??b?\q?
* ?`?b{? ?z ? ?w gnd w
????!?`sm?o??`oxi^m{ if small signal gnd and large current gnd exist, disperse their pattern. in addition, for voltage change by pattern wiring impe dance and largecurrent not to change voltage of small signal gnd, each ground terminal of ic must be connected at the one point on the set circuit board. as for gnd of external parts, it is sim ilar to the above-mentioned. 14 }o8?? reverse-rotation braking ?s8t?o8????oqvxzoi??t??`o<^m{?hz z??v? g ?y`zo8????;b?s8
:?u| `o<^m{ in the case of reverse-rotation braking from high-speed rotation, pay good attention to reverse electromotive force. furthermor e, fully check output current and consider the revolutions applied to the reverse-rotation brake. 15 } spv m -spgnd ???tmmo about the capacitor between spvm and spgnd spv m -spgnd ???x pwm ???qwx ^s?y~?vw!=?u )`z\?t?? spv m ?ywz??hq?tauk??b{hi`z???u ic t?xs?yz
??e???sw1t??zfw?lx?<`?b{ spv m -spgnd ???x ic wxt ?`o?x?os&m?`?b{ the capacitor between spvm and spgnd absorbs the change in a steep voltage and the current because of the pwm drive, as a resul t, there is a role to suppress the disorder of the spvm voltage. however, the effect falls by the influence of the wiring impedance etc, if the capacitor becomes far from ic. ple ase examine the capacitor between spvm and spgnd to arrange it near ic. z? a /
\
? gnd p + p p , x z? a /
\
? z? b /
\
? gnd p p , x cb gnd e z? b e c b /
\
? gnd cb? w
? ? ???? (npn) p + p + p + resistor transistor(npn) terminal-a terminal-a terminal-b parasitic element p-substrate parasitic parasitic p-substrate surrounding elements parasitic element terminal-b
notes no technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of rohm co.,ltd. the contents described herein are subject to change without notice. the specifications for the product described in this document are for reference only. upon actual use, therefore, please request that specifications to be separately delivered. application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. rohm co.,ltd. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by rohm co., ltd. is granted to any such buyer. products listed in this document are no antiradiation design. appendix1-rev2.0 thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact your nearest sales office. rohm customer support system the americas / eupope / asia / japan contact us : webmaster@ rohm.co. jp www.rohm.com copyright ? 2007 rohm co.,ltd. the products listed in this document are designed to be used with ordinary electronic equipment or de vices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. it is our top priority to supply products with the utmost quality and reliability. however, there is always a chance of failure due to unexpected factors. therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. rohm cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the notes specified in this catalog. 21, saiin mizosaki- cho, ukyo-ku, kyoto 615-8585, japan tel : +81-75-311-2121 fax : +81-75-315-0172 appendix

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Price & Availability of BD7967EFS

Part #	Manufacturer	Description	Price	BuyNow Qty.
BD7967EFS-E2 BD7967EFS-E2-ND	ROHM Semiconductor	IC HALF BRIDGE DRVR 2A 44HTSSOP	1500: USD5.36673	0

Part #	Manufacturer	Description	Price	BuyNow Qty.
BD7967EFS-E2 755-BD7967EFS-E2	ROHM Semiconductor	Motor / Motion / Ignition Controllers & Drivers POWER DRIVER 44-PIN		0

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