page ?no. ?: ? 1/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com rs431 ? adjustable ? precision ? shunt ? regulator ? general ? description ? the ? rs431? series ? are ? three \ terminal ? adjustable ? regulators ? with ? guaranteed ? thermal ? stability ? over ? applicable ? temperature ? ranges. ? the ? output ? voltage ? may ? be ? set ? to ? any? value ? between ? v ref ? (approximately ? 2.5 ? volts) ? and ? 36 ? volts ? with ? two ? external ? resistors. ? these ? devices ? have ? a ? typical ? dynamic ? output ? impedance ? of ? 0.2 . ? active ? output ? circuitry ? provides ? a ? very ? sharp ? turn \on ? characteristic, ? making ? these ? devices ? excellent ? replacement ? for ? zener ? diodes ? in? many ? applications. ? features ? programmable ? precise ? output ? voltage ? from ? 2.5v? to ? 36v ? high ? stability ? under ? capacitive ? load ? low? temperature ? deviation: ? 4.5mv ? typical ? low? dynamic ? output ? resistance: ? 0.2 ? typical ? sink ? current ? capacity ? from ? 1ma ? to ? 100ma ? low? output ? noise ? wide? operating ? range ? of ?\ 40? to ? 125 o c ? low? equivalent ? full \range ? temperature ? coefficient ? with ? 20ppm/ o c ? typical ? application ? circuits ? ? ? ? ? ? ? ? ? ? this ? integrated ? circuit ? can ? be ? damaged ? by ? esd. ? orister ? corporation ? recommends ? that ? all ? integrated ? circuits ? be ? handled ? with ? appropriate ? precautions. ? failure ?to ? observe? proper ?handling ?and? installation ? procedures ? can ?cause ?damage. ? ? esd ? damage ? can ? range ? from ? subtle ? performance ? degradation ? to ? complete ? device? failure. ? precision ? integrated ? circuits ? may ? be ? more ? susceptible ?to ?damage ?becaus e ? very ? small ? parametric ?changes ? could ? cause ?the ? device ?not ?to ? meet ?its ?published ? specifications. ? ? fig ? 1. ? v k =v ref ? fig ? 2. ? v k >v ref ?? fig ? 3. ? off \ state ? current ? in v k i i i ref v ref i k r 1 i i v k in i ref i k r 2 v ref note: v k =v ref (1+r 1 /r 2 )+i ref xr 1 in v k i off
page ?no. ?: ? 2/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com pin? assignments ? sot \ 23? to \ 92? (straight ? lead ? option) ? to \ 92? (formed ? lead ? option) ? package ? pin ? description ? 1 ? reference ? 2 ? cathode ? sot \ 23? 3 ? anode ? ? package ? pin ? description ? 1 ? reference ? 2 ? cathode ? to \ 92 ? 3 ? anode ? ordering ? information ? device? device? code? rs431 ? x ? yy ? z ? x? is ? reference ? voltage? precision ? designator: ? a: ? 2.5v ? 0.4% ? b:? 2.5v ? 0.8% ? yy ? is ? package ? designator ? : ? a: ? to \ 92 ? (straight ? lead ? option) ? at: ? to \ 92 ? (formed ? lead ? option) ? n:? sot \ 23? z ? is ? lead ? free ? designator ? : ? p: ? commercial ? standard, ? lead ? (pb) ? free ? and ? phosphorous ? (p) ? free ? package? g: ? green ? (halo g en ? free ? with ? commercial ? standard) ? block? diagram ? ? functional block diagram symbol reference anode cathode
page ?no. ?: ? 3/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com absolute ? maximum ? ratings ? (operating ? temperature ? range? applies? unless ? otherwise ? specified) ? characteristics ? symbol ? value ? unit cathode ? voltage ? v ka ? 40? v? cathode ? current ? range ? (continuous)? i k ?\ 100?\?+150 ? ma? reference ? input ? current ? range ? i ref ? 0.05?\?+10 ? ma? sot \ 23? 370? to \ 92? 770? \\? \\? power ? dissipation ? p d ? \\? \\? mw operating ? temperature ? range ? (max.) ? t opr ?\ 40?\?+125 ? o c? storage ? temperature ? range ? t stg ?\ 65?\?+150 ? o c? operating ? conditions ? characteristics ? symbol ? min. ? max. ? unit cathode ? voltage ? v ka ? v ref ? 36? v? cathode ? current ? range ? (continuous)? i k ? 1? 100? ma? operating ? ambient ? temperature ? range ? t opr ?\ 40? 125? o c? electrical ? characteristics ? (t a =25c, ? unless ? otherwise ? specified) ? characteristics ? symbol ? test ? conditions ? min ? typ ? max ? unit 2.5v? 0.4% ? 2.49? 2.50? 2.51? reference ? input ? voltage? (fig1)? 2.5v? 0.8% ? v ref ? v k =v ref , ? i k =10ma? 2.48? 2.50? 2.52? v? deviation ? of ? reference ? input ? voltage ? over \ temperature ? (fig1) ? v ref(dev) ? v k =v ref , ? i k =10ma? t min t a t max ? ( \ 40?\?+125 o c) ? \? 4.5? 16? mv ? i k =10ma,, ? v k =10v ? to ? v ref ?\? 1.0? 2.7? mv/v ratio ? of ? change? in ? reference ? input ? voltage?to ? the ? change? in ? cathode ? voltage? (fig2)? v ref / v k i k =10ma,, ? v k =36v ? to ? 10v ?\? 0.5? 2.0? mv/v reference ? input ? current ? (fig2) ? i ref ? i k =10ma, ? r1=10k , ? r2= ? \? 0.7? 4? ua? deviation ? of ? reference ? input ? current ? over ? full ? temperature ? range ? (fig2) ? i ref(dev) ? i k =10ma, ? r1=10k? r2= , ? ta= \ 40?\?+125 o c? \? 0.4? 1.2? ua? minimum ? cathode ? current ? for ? regulation ? (fig1) ? i k(min) ? v k =v ref ?\ ? 0.4? 1.0? ma? off \ state ? cathode ? current ? (fig3) ? i k(off) ? v k =36v, ? v ref =0 ?\? 0.05? 1.0? ua? dynamic ? output ? impedance ? (fig1) ? z k ? v k =v ref , ? f 1khz, ? i k =1 ? to ? 100ma ?\? 0.15? 0.5 ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
page ?no. ?: ? 4/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com typical ? performance ? characteristics?
page ?no. ?: ? 5/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com typical ? performance ? characteristics? (continued) ?
page ?no. ?: ? 6/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com typical ? performance ? characteristics? (continued) ?
page ?no. ?: ? 7/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com sot \ 23 ? dimension ? ? notes: ? a. all ? linear? dimensions ? are ? in ? millimeters. ? b. this ? drawing ? is ? subject ? to ? change ? without ? notice. ? c. body ? dimensions ? do ? not ? include ? mold ? flash ? or ? protrusion. ? mold ? flash ? and ? protrusion ? shall ? not? exceed ? 0.15 ? per ? side.?
page ?no. ?: ? 8/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com to \ 92? dimension ? ? ? notes: ? a. all ? linear? dimensions ? are ? in ? inches? (millimeters). ? b. this ? drawing ? is ? subject ? to ? change ? without ? notice. ? c. lead ? dimensions ? are ? not? controlled ? within ? this ? area. ? d. falls ? within ? jedec ? to \ 226 ? variation ? aa ? (to \ 226 ? replaces ? to \ 92) ? e. shipping ? method: ? straight ? lead ? option ? available ? in ? bulk ? pack ? on ly. ? formed ? lead ? op tion ? available ? in ? tape ? & ? reel ? or ? ammo ? pack. ? ? ? ?
page ?no. ?: ? 9/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com soldering ? methods ? for ? orister?s? products ? 1. ? storage ? environment: ? temperature=10 o c~35 o c? humidity=65%15% ? 2. ? reflow ? soldering ? of ? surface \ mount ? devices ? ? profile? feature ? sn \ pb ? eutectic ? assembly ? pb \ free ? assembly ? average ? ramp \ up ? rate ? (t l ? to ? t p ) ? <3 o c/sec ? <3 o c/sec ? preheat? \? temperature ? min ? (ts min ) ? \? temperature ? max ? (ts max ) ? \? time ? (min ? to ? max) ? (ts) ? ? 100 o c? 150 o c? 60~120 ? sec ? ? 150 o c? 200 o c? 60~180 ? sec ? tsmax? to ? t l ? ? \? ramp \ up ? rate ? ? <3 o c/sec ? ? <3 o c/sec ? time ? maintained ? above: ? \? temperature ? (t l ) ? \? time ? (t l ) ? ? 183 o c? 60~150 ? sec ? ? 217 o c? 60~150 ? sec ? peak ? temperature ? (t p ) ? 240 o c? +0/ \ 5 o c ? 260 o c? +0/ \ 5 o c ? time ? within ? 5 o c? of ? actual ? peak ? temperature ? (t p ) ? 10~30 ? sec ? 20~40 ? sec ? ramp \ down ? rate ? <6 o c/sec ? <6 o c/sec ? time ? 25 o c? to ? peak ? temperature ? <6 ? minutes? <8 ? minutes? 3. ? flow ? (wave) ? soldering ? (solder ? dipping) ? products ? peak ? temperature ? dipping ? time ? pb ? devices. ? 245 o c? 5 o c? 5sec ? 1sec ? pb \ free ? devices. ? 260 o c? +0/ \ 5 o c ? 5sec ? 1sec ? ? ? ? ? ? figure ? 1: ? temperature ? profile ? t p t l ramp-down ramp-up ts max ts min critical zone t l to t p t s preheat t l t p 25 t 25 o c to peak time temperature
page ?no. ?: ? 10/10 ds \ rs431 \ 09??? september, ? 2009 ? www.orister.com ? ? important ? notice: ? ? ? ? orister ? corporation ? orister ? cannot ? assume ? responsibility ? for ? use ? of ? any ? circuitry ? other ? than ? circuitry ? entirely ? embodied ? in ? an ? orister ? product. ? no ? circuit ? patent ? licenses, ? copyrights, ? mask ? work ? rights, ? or ? other ? intellectual ? property ? rights ? are ? implied. ? ? orister ? reserves ? the ? right? to ? make ? changes ? to ? their ? products ? or ? specifications ? or ? to ? discontinue ? an y ? prod uct ? or ? service ? without ? notice. ? except ? as ? provided ? in ? orister?s ? terms ? and ? conditions ? of ? sale, ? orister ? assumes ? no ? liability ? whatsoever, ? and ? orister ? disclaims ? any ? express ? or ? implied ? warranty ? relating ? to ? the ? sale ? and/or ? use? of ? orister ? products ? including ? liability ? or ? warranties ? relating ? to ? fitness ? for ? a? particular ? purpose, ? merchantability, ? or ? infringement ? of ? any ? pa te nt, ? copyright ? or ? other ? intellectual? property ? right. ? in ? order ? to ? minimize ? risks ? associated ? with ? the ? customer?s ? applications, ? adequate ? design ? and ? operating ? safeguards ? must ? be ? provided ? by ? the ? customer ? to ? minimize? inherent ? or ? procedural ? hazards. ? testing ? and ? other ? quality ? control ? techniques ? are ? utilized ? to ? the ? extent ? orister ? deems ? necessary ? to ? su pp ort ? this ? warranty. ? specific ? testing ? of ? all? parameters ? of ? each ? device ? is ? not? necessarily ? performed. ?? ? orister ? and ? the ? orister ? logo ? are ? trademarks ? of ? orister ? corporation. ? all ? other ? brand ? and ? product ? names ? appearing ? in ? this ? document ? are ? registered ? trademarks ? or ? trademarks ? of ? their ? respective ? holders. ? ? ? ?
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