ss1 1 39 unipolar hall - effect digital switch 1 v 3.1 0 nov 1 , 20 1 3 f eat u r es a n d b e n ef i ts ? 3.8 v to 24v operation ? - 40 c to 150 c superior temperature operation ? bipolar t e c hno l ogy ? open - collector 50 ma output ? reverse battery protection ? small size sot 89 3l ? solid - state reliability ? resistant to 60v supply voltage ? sensitivity of temperature compensation ci r- cuitry 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 ? b r u s h l e s s dc m otor c omm uta t i on ? 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 sot 89 (suffix sp) functional block diagram voltage regulator hall plate amp v dd gnd output
ss1 1 39 unipolar hall - effect digital switch 2 v 3.1 0 nov 1 , 20 1 3 general descri ption the ss1139 is a uni polar hall - e ffect sensor ic fa b- ricated from bipolar technology. the de v i c e i nt e- g r a t es a vo l ta g e r e gu l ato r , reverse battery prote c- tion diode, h a l l s en s or w i th d y na m i c of f s et c a n- c e l l a t i on s y s te m , temperature compensation ci r- cuitry, small signal amplifier, s c hm i tt tr i gger and a n open - collector out put to sink up to 50 ma. with suitable output pull up, they can be used with bipolar or cmos logic circuits. these hall - effect switches are monolithic integrat - ed circuits with tighter magnetic specifications, d e- signed to operate continuously over extended te m- peratures to +150 c ,and are more stable with both temperature and supply voltage changes. internal compe nsation characteristic makes the sensitivity increas e slightly with temperature increasing , so that this ic is particularly suitable to be used with the commonly low - cost magnets. if a magnetic flux density larger than threshold bop, output is turned on (low). when a magnetic flux density reversal falls below brp, output will be turned off (high). thanks to its wide operating voltage range , e x- tended choice of temperature range and high reli a- bility , it is quite suitable for use in automotive, i n- dustrial and consumer applications. 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 driver off (v out = high)
ss1 1 39 unipolar hall - effect digital switch 3 v 3.1 0 nov 1 , 20 1 3 pin definitions and descriptions absolute maximum ratings p ar am eter s y m b o l v al ue un i ts s upply v oltage v dd 60 v reverse voltage v dd - 24 v output v o ltage v o ut 30 v output cu rr ent i o ut 50 m a magnetic flux density b no limit operating temperature range t a - 40 to +150 c s to r age t e m pe r atu r e range t s - 65 to 170 c maximum junction temp erature t j +150 c lead temperature (solding, 5 sec) t l +250 c package power dissipation p d 450 mw o pe r at i ng t e m pe r atu r e r a nge symbol 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 ded pe r i o ds m a y a ff e c t de v i c e r e l i a bi l i t y . sot p i n na m e t y pe f un c t i o n 1 v dd s upply s upply v oltage pin 2 gnd g r ound g r ound pin 3 out output open collector output pin
ss1 1 39 unipolar hall - effect digital switch 4 v 3.1 0 nov 1 , 20 1 3 general electrical specifications dc o pe r a t i ng p a r a m ete r s t a = 25c , v dd = 3.8 v to 2 4v ( unl e s s ot he r w i s e s p e 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 supply voltage v dd operating 3.8 24 v supply current i dd v dd =12v 5 10 ma output saturation voltage v dson i out = 20ma, b > b op 0.45 0.6 v output current i on b > b op 10 ma output leakage current i off b < b rp 0.1 10 a output rise time tr v cc =12v, r l = 1.1k ?, c l = 20pf 0.2 1.5 s output fall time tf v cc =12v, r l = 1.1k ?, c l = 20pf 0.5 1.0 s magnetic specifications package parameter symbol test conditions min typ max units sp operating point b op ta=25c,vdd=12v dc 75 120 g release point b rp 25 80 g hysteresis b hyst 50 g output behavior versus magnetic pole dc operating parameters ta = - 40c to 150 c , vdd = 3. 8 v to 24v (unless otherwise specified) test conditions ( sp ) out b < b rp high b > b op low
ss1 1 39 unipolar hall - effect digital switch 5 v 3.1 0 nov 1 , 20 1 3 performance characteristics application information 0 10 20 30 40 50 60 70 80 -40 25 85 125 150 temperature() flux densitygauss bop brp bhys magnetic switch range versus temperature 0 20 40 60 80 100 120 140 -40 25 85 125 150 temperature() flux densitygauss bop brp bhys magnetic switch range versus temperature ss1139
ss1 1 39 unipolar hall - effect digital switch 6 v 3.1 0 nov 1 , 20 1 3 package sp , 3 - pin sot - 89 ordering information part no. pb - free temperature code package code packing ss1139 es p t yes - 40c to 85c sot - 89 7- in. reel, 3000 pieces/reel ss1139 ks p t yes - 40c to 12 5c sot - 89 7- in. reel, 3000 pieces/reel ss1139 ls p t yes - 40c to 150c sot - 89 7- in. reel, 3000 pieces/reel
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