ss5681 unipolar hall switch - low sensitivity 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 .5v to 24v operation ? - 40 c to 150 c superior temperature operation ? cmos technology ? low current consumption ? chopper - stabilized amplifier stage ? open drain output ? low sensitivity ? small size sot23 3l or sip 3l ? b oth rohs compliant packa ges 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 ? 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 ? current dete c tor 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
ss5681 unipolar hall switch - low sensitivity 2 v 3.1 0 nov 1 , 20 1 3 general descri ption s the s s 5681 is a uni polar hall - e ffect s ensor ic fa b- ricated from cmos 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 , 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 , small signal a m- plif ier, s c hm i tt t r i gger and a n open - drain out put driver . with suitable output pull up, they can be used with bipolar or cmos logic circuits. these hall - effect switches are monolithic integra t- ed circuits with tighter magnetic specifications, d e- signed to operat e continuously over extended te m- peratures to +150 c ,and are more stable with both temperature and supply voltage changes. the un i- polar switching characteris tic makes these devices ideal for use with a simple bar or rod magnet. thanks to its wide operating voltage range and e x- tended choice of temperature range, it is quite sui t- able for use in automotive, industrial and consumer applications. the device is delivered in a small outline transi s- tor (sot) or in a plastic single in line ( sip 3l flat) . both 3 - l ead 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 ( bop ) magnetic flux density applied on the branded side of the p ackage which turns the output driver on (v out = v dson ) release point (brp ) magnetic flux density applied on the branded side of the package which turns the output driver off (v out = high)
ss5681 unipolar hall switch - low sensitivity 3 v 3.1 0 nov 1 , 20 1 3 pin s definition and description 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 - 65 to 170 c 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 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 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
ss5681 unipolar hall switch - low sensitivity 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. 5v to 2 4v ( un l 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 s upply v oltage v dd ope r ating 3.5 24 v s upply cu rr ent i dd b < b rp 1.5 2.5 5 m a output s atu r ation v o ltage v d so n i o ut = 20 m a , b > b op 0.4 0.5 v output leakage cu rr ent i o ff b < b rp v o ut = 24v 0.01 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 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 ta=25c,v dd =12v dc 60 80 100 g release point b rp 20 50 80 g hysteresis b hyst 30 g so operating point b op ta=25c,v dd =12v dc - 100 - 80 - 60 g release point b rp - 80 - 50 - 20 g hysteresis b hyst 30 g output behavior versus magnetic pole dc ope rating 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 nor th pole magnetic field applied to the marked face.
ss5681 unipolar hall switch - low sensitivity 5 v 3.1 0 nov 1 , 20 1 3 application information typical three - wire application circuit automotive and harsh, noisy environments three - wire circuit f or proper operation, a 100nf bypass capacitor should be placed as close as possible to the device between the v dd and ground pin. for reverse voltage protection, it is recommended to connect a resistor or a diode in series with the v dd pin. when using a re sistor, three points are important: - the resistor has to limit the reverse current to 50ma maximum (v cc / r1( 50ma) - the resulting device supply voltage v dd has to be higher than v dd min (v dd = v cc ? r1 ?i dd ) - the resistor has to withstand the power diss ipated in reverse voltage condition (pd = v cc 2 / r1) when using a diode, a reverse current cannot flow and the voltage drop is almost constant ( 0.7v). therefore, a 100
/0.25w resistor for 5v application and a diode for higher supply voltage are recommended . when a weak power supply is used or when the device is intended to be used in noisy env ironment, it is reco m- mended th e second figure above is used. the low - pass filter formed by r1 and c1 and the zener diode z1 bypass the disturbances or voltage spikes o ccu r- ring on the device supply voltage v dd . the diode d1 provides additional reverse voltage protection. both solutions provide the required reverse voltage protection. 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 h a 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 .
ss5681 unipolar hall switch - low sensitivity 6 v 3.1 0 nov 1 , 20 1 3 package information package ua, 3 - pin sip : 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
ss5681 unipolar hall switch - low sensitivity 7 v 3.1 0 nov 1 , 20 1 3 package s o , 3- pin sot - 23: ordering i nformation part no. pb - free temperature code package code packing ss5681esot yes - 40c to 85c sot - 23 7- in. reel, 3000 pieces/reel ss5681euaa yes - 40c to 85c to - 92 bulk, 1000 pieces/bag s s 5681k sot yes - 40c to 12 5c sot - 23 7- in. reel, 3000 pieces/r eel s s 5681k uaa yes - 40c to 125 c to - 92 bulk, 1000 pieces/bag s s 5681 lsot yes - 40c to 150c sot - 23 7- in. reel, 3000 pieces/reel s s 5681 luaa yes - 40c to 150c to - 92 bulk, 1000 pieces/bag 2.70 3.10 1.00 1.30 0.70 0.90 0.00 0.10 0.35 0.50 0.10 0.25 0.20 m in 2.60 3.00 1.50 1.8 0 1.70 2.10 3 2 1 top side vie end notes 1). pinout: pin 1 v dd pin 2 output pin 3 gnd 2). all dimensions are in millimeters;
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