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3-phase brushless motor driver for vtr capstans functions . 3-phase full-wave current linear drive system . torque ripple correction circuit built in (variable compensation ratio) . current limiting circuit built in/with control characteristic gain switch . output stage upper/lower oversaturation prevention circuit built in (no external capacitor required) . fg amplifier built in . thermal shutdown circuit built in 3147a-dip28hs [LB1889D] sanyo : dip28hs (500mil) package dimensions unit : mm 3206-qfp34h [lb1889] sanyo : qfp34h 3129-mfp36s [lb1889m] sanyo : mfp36s ordering number: en 5131 monolithic digital ic lb1889, 1889m, 1889d sanyo electric co.,ltd. semiconductor bussiness headquarters tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan 92595ha (ii) no.5131-1/13
specifications absolute maximum ratings atta=25 c parameter symbol conditions ratings unit maximum supply voltage v cc max 7v v s max 24 v maximum output current i o max 1.3 a allowable power dissipation pd max arbitrarily large heat sink lb1889 12.5 w arbitrarily large heat sink LB1889D 15.0 w independent ic lb1889 0.77 w independent ic lb1889m 0.95 w independent ic LB1889D 3.0 w operating temperature topr 20 to +75 c storage temperature tstg 55 to +150 c allowable operating ranges atta=25 c parameter symbol conditions ratings unit supply voltage v s 5to22 v v cc 4.5 to 5.5 v hall input amplitude v hall between hall inputs 30 to 80 mv 0-p gsense input range v gsense relative to control system gnd 0.20 to +0.20 v electrical characteristics atta=25 c, v cc =5v,v s =15v parameter symbol conditions min typ max unit v cc supply current i cc r l = (when stopped), v ctl =0v,v lim = 0 v 12 18 ma [output] output saturation voltage v osat 1 i o = 500 ma, rf = 0.5 w , sink + source v ctl =v lim = 5 v (with saturation prevention) 2.1 2.6 v v osat 2 i o = 1.0 a, rf = 0.5 w , sink + source v ctl =v lim = 5 v (with saturation prevention) 2.6 3.5 v output leakage current ioleak 1.0 ma [fr] fr pin input threshold voltage v fsr 2.25 2.50 2.75 v fr pin input bias current ib (fsr) 5.0 a [control] ctlref pin voltage v cref 2.37 2.50 2.63 v ctlref pin input range v cref in 1.70 3.50 v ctl pin input bias current ib (ctl) v ctl = 5 v, ctlref : open 8.0 a ctl pin control start voltage v ctl (st) with rf = 0.5 w ,v lim =5v,i o ^ 10 ma, hall input logic fixed, (u, v ,w=h,h,l) 2.20 2.35 2.50 v ctl pin control switch voltage v ctl (st2) rf = 0.5 w ,v lim = 5 v 3.00 3.15 3.30 v ctl pin control gm1 gm1 (ctl) with rf = 0.5 w , d i o = 200 ma, hall input logic fixed, (u, v ,w=h,h,l) 0.52 0.65 0.78 a/v ctl pin control gm2 gm2 (ctl) with rf = 0.5 w , d v ctl = 200 mv, hall input logic fixed, (u, v ,w=h,h,l) 1.20 1.50 1.80 a/v [current limit] lim current limit offset voltage voff (lim) with rf = 0.5 w ,v ctl =5v,i o ^ 10 ma, hall input logic fixed, (u, v ,w=h,h,l) 140 200 260 mv lim pin input bias current ib (lim) with v ctl = 5 v, ctlref : open, v lim =0v 2.5 a lim pin current limit level i lim with rf = 0.5 w ,v ctl =5v,v lim = 2.06 v, hall input logic fixed, (u, v ,w=h,h,l) 830 900 970 ma [hall amplifier] hall amplifier input offset voltage voff (hall) 6 +6 mv hall amplifier input bias current ib (hall) 1.0 3.0 a hall amplifier common-mode input voltage vcm (hall) 1.3 3.3 v continued on next page. lb1889, 1889m, 1889d no.5131 - 2/13
continued from preceding page. parameter symbol conditions min typ max unit [trc] torque ripple correction factor t rc at bottom and peak in rf waveform at i o = 200 ma (rf = 0.5 w , adj-open) note 2 9% adj pin voltage vadj 2.37 2.50 2.63 v [fg amplifier] fg amplifier input offset voltage voff (fg) 8 +8 mv fg amplifier input bias current ib (fg) 100 na fg amplifier output saturation voltage v osat (fg) at internal pull-up resistor load on sink side 0.5 v fg amplifier common-mode input voltage v cm (fg) 0.5 4.0 v [saturation] saturation prevention circuit lower set voltage v osat (det) voltage between each out and rf at i o =10ma, rf = 0.5 w ,v ctl =v lim =5v 0.175 0.25 0.325 v [tsd] tsd operation temperature t-tsd (design target) note 1 180 c tsd temperature hysteresis width d tsd (design target) note 1 20 c note 1: no measurements are performed for any values listed in the conditions column as design targets. note 2: the torque ripple correction factor is calculated using the rf voltage waveform as follows. truth table & control function source ? sink hall input fr uvw 1 v ? w hhl h w ? vl 2 u ? w hll h w ? ul 3 u ? v hlh h v ? ul 4 w ? v llh h v ? wl 5 w ? u lhh h u ? wl 6 v ? u lhl h u ? vl note: ``h'' in the fr column represents a voltage of 2.75 v or more; ``l'' represents a voltage of 2.25 v or less. (at v cc =5v) note: ``h'' in the hall input columns represents a state in which ``+'' has a potential which is higher by 0.01 v or more than that of the ``?'' phase inputs. conversely, ``l'' represents a state in which ``+'' has a potential which is lower by 0.01 v or more than that of the ``?'' phase input. note: since 180 energized system is used as the drive system, other phases than the sink and source phases are turned off. hall input logic settings gnd level correction factor = 2 (vp ? vb) vp + vb 100 (%) lb1889, 1889m, 1889d no.5131 - 3/13
control function & current limit function pin functions the pin number in ( ) is for mfp, that in < > is for dip, and other than these is for qfp. pin name pin no. function fr 1 (33) <26> forward/reverse select pin. the pin voltage selects forward/reverse. (vth = 2.5 v typ at v cc =5v) gnd 2 (34) <27> gnd for other than output transistor. minimum potential of output transistor is at rf pin. fgin () 5 (3) <28> input pin when fg amplifier is used with inverted input. feedback resistor is connected between this pin and fg-out. fgin (+) 6 (4) <1> noninverting input pin when fg amplifier is used with differential input. internal bias is not applied. fg-out 8 (5) <3> fg amplifier output pin. resistive load provided internally. ctl 9 (6) <4> speed control pin. control is exercised by constant-current drive with current feedback applied from rf. gm = 0.65 a/v & 1.50 a/v typ at rf = 0.5 w ctlref 10 (7) <5> control reference voltage pin. the voltage is set internally to approx. v cc /2 but this can be varied by applying voltage through a low impedance (input impedance = approx. 2.5 k w ). lim 11 (8) <6> current limiting function control pin. the output current is varied linearly by this pin voltage; slope = 0.5 a/v typ at rf = 0.5 w . fc 12 (9) <7> speed control loop frequency characteristic correction pin uin + , uin vin + ,vin win + , win 13, 14 (10, 11) <8, 9> 15, 16 (12, 13) <10, 11> 17, 18 (14, 15) <12, 13> u-phase hall device input pin; logic ``h'' represents in+ > in?. v-phase hall device input pin; logic ``h'' represents in+ > in?. w-phase hall device input pin; logic ``h'' represents in+ > in?. v cc 19 (16) <14> power supply pin for supplying power to all circuits except output section in ic; this voltage must be stabilized so as to eliminate ripple and noise. v s 22 (21) <15> output selection power supply pin adj 23 (22) <16> pin for external adjustment of torque ripple correction factor. when this factor is to be adjusted, a voltage is externally applied to the adj pin through a low impedance. if the voltage applied is increased, the factor drops; conversely, if it is reduced, the factor rises. the factor varies between 0 and 2 times that of the open state. (the voltage is set inside to approx. v cc /2 internally, and the input impedance is approx. 5 k w .) rf (pwr) rf (sns) 24 (23) <17> 33 (31) <24> output current detection pin. current feedback is applied to the control section by connecting rf between this pin and gnd. the lower oversaturation prevention circuit and torque ripple correction circuit are activated in accordance with this pin voltage. since the oversaturation prevention level is set with this voltage, the lower oversaturation prevention effect may deteriorate in the high current range if the rf value is reduced to an extremely low level. the pwr and sense pins must always be connected. uout vout wout 27 (26) <21> 29 (27) <22> 31 (28) <23> u-phase output pin v-phase output pin w-phase output pin (built-in spark killer diode) gsense 34 (32) <25> gnd sensing pin. by connecting this pin to the neighboring gnd on the rf resistor side of the motor gnd wire which contains rf, the effect that gnd common impedance exerts on rf can be eliminated. (this pin must not be left open.) control characteristics current limit characteristics slope = 0.50 a/v typ lb1889, 1889m, 1889d no.5131 - 4/13
block diagram hall amplifier hall input combination unit (linear matrix) combined output logarithmic compression unit logarithmic inverse transformation & differential distribution output stage upper saturation prevention control differential distribution & torque ripple correction unit drive distribution circuit & lower saturation prevention control feedback amplifier forward/ reverse selection control amplifier 1 control amplifier 2 fg amplifier reference voltage lb1889, 1889m, 1889d no.5131 - 5/13
pin assignment [lb1889] note: frame must be connected to gnd for gnd potential stablization. top view allowable power dissipation, pd e w ambient temperature, ta e c pdeta lb1889, 1889m, 1889d no.5131 - 6/13
pin assignment [lb1889m] note: although there is no internal connection between the frame pin and gnd, frame must be connected to gnd externally for gnd potential stabilization. (package : mfp-36s-lf) top view allowalle power dissipation, pd e w ambient temperature, ta e c pdeta lb1889, 1889m, 1889d no.5131 - 7/13
pin assignment [LB1889D] dip-28hs bent opposite (resin side) top view allowable power dissipation, pd e w ambient temperature, ta e c pdeta lb1889, 1889m, 1889d no.5131 - 8/13
sample application circuit [lb1889] gaas is recommended as the hall device. hall bias resistor r is selected to match the sensor output. forward/reverse instructing voltage supply pin torque instructing voltage supply pin note: the constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics. hall output hall output hall input power gnd adj voltage supply pin current limit setting voltage supply pin ctl ref voltage supply pin fg output pin hall output vcc vs lb1889, 1889m, 1889d no.5131 - 9/13
sample application circuit [lb1889m] gaas is recommended as the hall device. hall bias resistor r is selected to match the sensor output. forward/reverse instructing voltage supply pin torque instructing voltage supply pin note: the constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics. adj voltage supply pin current limit setting voltage supply pin ctl ref voltage supply pin fg output pin hall output hall output hall output hall input power gnd vs vcc lb1889, 1889m, 1889d no.5131 - 10/13
sample application circuit [LB1889D] gaas is recommended as the hall device. hall bias resistor r is selected to match the sensor output. forward/reverse instructing voltage supply pin power gnd torque instructing voltage supply pin note: the constants provided in this sample application circuit are provided by way of example and are not intended to guarantee the characteristics. adj voltage supply pin current limit setting voltage supply pin ctl ref voltage supply pin fg output pin hall output hall output hall output hall input vs vcc (resign side) lb1889, 1889m, 1889d no.5131 - 11/13
pin input/output equivalent circuit pin name input/output equivalent circuit uin (+) uin () vin (+) vin () win (+) win () each (+) input each (?) input u-out v-out w-out v s rf (power) rf (sense) each output lower oversaturation prevention circuit input block ctl lim ctlref fr adj continued on next page. lb1889, 1889m, 1889d no.5131 - 12/13
continued from preceding page. pin name input/output equivalent circuit fgin () fgin (+) fgout fc no products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 accept full responsibility and indemnify and defend sanyo electric co., ltd., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on sanyo electric co., ltd., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. this catalog provides information as of september, 1995. specifications and information herein are subject to change without notice. lb1889, 1889m, 1889d no.5131 - 13/13

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