ss1352 unipolar hall switch 1 v 3.1 0 nov 1 , 20 13 f eat u r es a n d b e n ef i ts ? w i de ope r at i ng v o l t age r a nge f r om 3.5v to 24v ? medium sensitivity ? cm o s t e c hno l ogy ? cho ppe r - s tab ili z ed a m p li f i e r s tage ? superior temperature stability ? extremely low switchpoint dr ift ? insensitive to physical stress ? l ow c u rr ent c on s um pt i on ? o pen d r a i n ou t pu t ? ti ny s o t 23 3l or f l at sip 3l both ro h s co m p l i ant pa ck ages application examples ? a uto m ot i ve, c on s um er and indu s t ri al ? s o l i d - s ta t e s w i t c h ? interrupter ? s pe ed d ete c t i on ? l i n ear p os i t i on dete c t i on ? a ngul ar pos i t i on d ete c t i on ? p r o xi m i t y d e te c t i on 3 pin sot23 (suffix so) 3 pin sip (suffix ua) functional block diagram v dd out voltage regulat o r chopper hall plate gnd sip package so t package pin 1 ? v dd pin 1 ? v dd pin 2 ? gnd pin 2 ? out pin 3 ? out pin 3 ? gnd
ss1352 unipolar hall switch 2 v 3.1 0 nov 1 , 20 13 general d e scription the ss1352 is a uni polar hall effect sensor ic fabricated from mixed signal cmos technology. the de v i c e i n teg r a t es a vol ta g e r e gu l ato r , h a l l s en s or w i th d y na m i c of f s et c an c e l l a t i on s y s te m , s c hm i tt t r i gger and a n ope n - d r a i n out put d ri v e r , a l l i n a s i ng l e pa c k age. it incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points. there are many applications for this hed ? hall electronic device - in addition to those listed abov e. thanks to its wide operating voltage ran ge and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consumer applications. the device is delivered in a small outline transistor (sot) for surface mount process or in a plastic single in line ( sip flat) f or through - hole mount. both 3 - lead packages are rohs compliant. glossary of terms millitesla (mt) , gauss units of magnetic flux density: 1mt = 10 gauss rohs restriction of hazardous substances operating point (b op ) magnetic flux density applied on the branded side of the package which turns the output driver on (v out = v dson ) release point (b rp ) magnetic flux density applied on the branded side of the package which turns the output dr iver off (v out = high)
ss1352 unipolar hall switch 3 v 3.1 0 nov 1 , 20 13 pin s definition and description unique features b a s ed on m i x ed s i gn a l c m o s te c hno l og y , ss1352 i s a ha l l - e ff e c t de v i c e w i th h i gh m agne t i c s en s i t i v i t y . t h i s m ul t i - pur pos e l at c h meets m os t of the a ppl i c at i on r e q u i r e m ent s . t he c hoppe r - s ta bi li z ed a m pli f i er u s es s w i t c he d c a p a ci tor te c hn i q ue t o s upp r e s s t he off s et gene r a l l y ob s e rv e d w i th ha l l s en s o r s a nd a m p li f i e rs . t he cm o s te c hnol ogy m a kes th i s a dv an c e d te c hn i que po ssi bl e and c ont r i b u tes to s m a ller c h i p si z e and l o wer c u rr ent c ons um pt i on th a n bi pol ar t e c hno l ogy . t he s m a l l c h i p si z e i s a l s o a n i m po r tant f a c tor t o m i ni m iz e t h e e ff e c t of p hy sic al s t r e ss . t h i s c o m b i nat i on r e s u l ts i n m or e s tab l e m agnet i c c ha r a c te r i s t i c s a nd e na bl es f a s ter and m o r e p r e c i s e de si gn . t he w i de ope r a t i ng vo l ta g e f r o m 2 .5v to 2 4v , l ow c u r r ent c on s um pt i on a nd l a r ge c ho i c e of o p e r a t i ng te m pe r atu r e r an ge a cc o r d i ng to ? l ? , ? k ? a nd ? e ? s p e c i f i c at i on s m a k e th i s de v i c e s u i tab l e f or auto m ot i v e, i ndu s t r i a l a nd c on s u m er a p p li c a t i on s . absolute maximum ratings p ar am eter s y m b ol v al ue un i ts s upply v oltage v dd 28 v s upply cu rr ent i dd 50 m a output v o ltage v o ut 28 v output cu rr ent i o ut 50 m a s to r age t e m pe r atu r e range t s - 50 to 150 c m axi m um junction t e m pe r atu r e t j 165 c sot p i n sip pi n na m e t y pe f un c t i o n 1 1 v dd s upply s upply v oltage pin 2 3 out output open d r ain output pin 3 2 gnd g r ound g r ound pin
ss1352 unipolar hall switch 4 v 3.1 0 nov 1 , 20 13 o pe r at i ng t e m pe r atu r e r a nge s y m b o l v al ue un i ts t e m pe r atu r e s uffix ? e ? t a - 40 to 85 c t e m pe r atu r e s uffix ? k ? t a - 40 to 125 c t e m pe r atu r e s uffix ? l ? t a - 40 to 150 c e xc eed i ng t he ab s o l ute m a x i m u m r at i ngs m a y c a us e pe r m anent da m age. e xpo s ur e to ab s o l ute - m a xi m u m - r ated c o ndi t i o ns f or e x ten d ed p e r i o ds m a y a ff e c t de v i c e r e l i a b i l i t y . general electrical specifications dc o pe r a t i ng p a r a m ete r s t a = 25c , v dd = 3. 5v to 24v ( un l e s s ot h e r w i s e s pe c i f i ed) p ar am eter s y m b o l t e s t cond i t i ons m i n t y p max un i ts s upply v oltage v dd ope r ating 3.5 24 v s upply cu rr ent i dd b < b rp 5 m a output s atu r ation v o ltage v d so n i o ut = 20 m a , b > b op 0.5 v output leakage cu rr ent i o ff b < b rp v o ut = 24v 1 10 a output rise t i m e t r r l = 1k ? , c l = 20pf 0.25 s output f all t i m e t f r l = 1k ? , c l = 20pf 0.25 s m axi m um s witc h ing fr equency f s w --- 10 k hz p ackage t he rm al resista n ce r th s ingle layer ( 1s ) jed e c boa r d 301 c/w note: the output of ss1352 will be switched after the supply voltage is over 2.2v, but the magnetic characteristics won't be n ormal until the supply is over 3 .5v. magnetic specifications dc operating parameters v dd = 3 . 5 to 24v (unless otherwise specified) package parameter symbol test conditions min typ max units ua operating point b op t a =25c,v dd =12v dc - 160 - 100 g release point b rp - 140 - 50 g hysteresis b hyst 40 g so operating point b op t a =25c,v dd =12v dc 100 160 g release point b rp 50 140 g hysteresis b hyst 40 g
ss1352 unipolar hall switch 5 v 3.1 0 nov 1 , 20 13 output behavior versus magnetic pole dc operating parameters t a = - 40c to 150 c , v dd = 3. 5 to 24v (unless otherwise specified) test conditions (ua) test conditions (so) out b > b rp b < b rp high b < b op b > b op low the sot - 23 device is reversed from the ua pack age. the sot - 23 output transistor will be turned on (drops low) in the presence of a sufficiently strong sou th pole magnetic field applied to the marked face. application information it is strongly recommended that an external bypass capacitor be connected (in close proximity to the hall sensor) between the supply(v dd pin) and ground(gnd pin) of the device to reduce both external noise and noise generated by the chopper stabilization technique. as is shown in the following figure, a 0.1f capacitor is typical. f or r e ve rs e vo l t a ge p r ote c t i on, i t i s r e c o m m ended t o c onne c t a r e s i s tor or a d i ode i n s e ri es w i t h t he v dd p i n. w h en u s i ng a r e s i s to r , t h r e e po i nts a r e i m po r tant: - the r e s i s tor has to li m i t t h e r e v e rs e c u rr ent t o 50 m a m a xi m um ( v cc / r1 50 m a ) - the r e s u l t i ng de v i c e s uppl y vo l ta g e v d d has t o be h i g her th a n v dd m i n ( v dd = v c c ? r1 * i dd ) - the r e s i s tor has to w i t hs t a nd t h e po w er d i ssi p a ted i n r e v e rs e vo l t a ge c ond i t i on ( p d = v cc 2 / r1 ) w h en u s i ng a d i ode, a r e ve rs e c u rr ent c an not f l ow and the vo l t a ge d r op i s a l m o s t c on s tant ( 0.7v ) . t he r e f o r e, a 100? / 0.25 w r e s i s tor f or 5v a pp li c a t i on a nd a d i ode f or h i gher s uppl y vol ta ge a r e r e c o m m end e d. typical three - wire application circuit w h en a w eak po w er s upp l y i s u s ed or w h en t he de v i c e i s i n te n ded to be u s e d i n no i s y e nvi r onm ent, i t i s ss1352
ss1352 unipolar hall switch 6 v 3.1 0 nov 1 , 20 13 r e c omm ended t h at following f i gu r e i s u s e d. automotive and severe environment protection circuit t he l o w - pa s s f il ter f o r m ed b y r 1 a nd c 1 a n d t he z e ne r d i ode z 1 b y p a s s the d i s tu r ban c es or vo l ta ge s p i k es o cc u rri ng on t he de v i c e s upp l y v o l t age v d d . t he d i ode d1 p r ov i des a dd i t i on a l r e ve rs e vo l ta g e p r o t e c t i on. b oth s o l u t i ons p r ov i de t he r eq u i r ed r e v e rs e vo l t a ge p r ote c t i on. esd precautions el e c t r on i c s e m i c onduc tor p r odu c ts a r e s en s i t i ve to e l e c t r o s ta t i c d i sc ha r ge ( e s d ) . a l w a y s o b s e rv e e l e c t r o s t a t i c d i sc ha r ge c ont r o l p r o c e du r es w h en e ver h a ndl i ng s e m i c onduc tor p r oduc t s . ss1352
ss1352 unipolar hall switch 7 v 3.1 0 nov 1 , 20 13 package information package so , 3 - pin (sot - 23) : 0.56 0.66 0.85 1.50 chip 3 2 1 bottom view of sot - 23 package 2.82 1.05 0.70 0.00 0.30 0.10 0.30 2.65 1.50 1.80 3 2 1 top view side view end view notes: 1). pinout: pin 1 v dd pin 2 output pin 3 gnd 2). all dimensions are in millimeters;
ss1352 unipolar hall switch 8 v 3.1 0 nov 1 , 20 13 package ua, 3 - pin sip( to - 92): ordering information part no. pb - free temperature code package code packing ss1352 e ua yes - 40c to 85c sot - 23 bulk, 1000 pieces/bag ss1352 esot yes - 40c to 85c sot - 23 7- in. reel, 3000 pieces/reel ss1352 k ua yes - 40c to 12 5c sot - 23 bulk, 1000 pieces/bag ss1352 k sot yes - 40c to 12 5c sot - 23 7- in. reel, 3000 pieces/reel ss1352 l ua yes - 40c to 150c sot - 23 bulk, 1000 pieces/bag ss1352 lsot yes - 40c to 150c sot - 23 7- in. reel, 3000 pieces/reel 4.0 0.01 1 2 3 1.27 2.13 1.87 1.00 1.20 45 1 1.52 0.1 3 1 0.75 0.05 3.0 0.01 0.44 0.01 0.05 0.05 1.6. 0.1 0.84(nom) 3 1 6 1 6 1 3 1 14 .5 1 active area depth: sensor location 1 2 3 notes: 1). controlling dimension : mm ; 2). le a ds must be free of flash and plating voids ; 3). do not bend leads within 1 mm of lead to package interface ; 4). pinout: pin 1 v dd pin 2 gnd pin 3 output 0.39 0.01 0.38 0.01 2.54
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