s 58 81 - aa unipolar hall switch - low sensitivity 1 v 2 . 0 0 m ay 1 , 20 12 f eat u r es a n d b e n ef i ts C 3 .5v to 24v operation C - 40 to 150 superior temperature operation C cmos technology C low current consumption C chopper - stabilized amplifier stage C open drain output C low sensitivity C small size - sot23 3l or sip 3l C both rohs compliant pack ages vdd out voltage regulatr chopper hall plate gnd ua packa ge se package pin 1 C v dd pin 1 C v dd pin 2 C gnd pin 2 C out pin 3 C out pin 3 C gnd 3 pin sot23 (suffix so ) 3 pin sip (suffix ua) a p p li cat i o n exa m p l es C a uto m ot i v e, c on s u m er and indu s t ri al C s o l i d - s ta t e s w i t c h C b r u s h l e s s dc m otor c o mm uta t i on C s p e ed d ete c t i on C a n g u l ar po s i t i o n d ete c t i on C p r o x i m i t y d e te c t i on C current detector functional block diagram
s 58 81 - aa unipolar hall switch - low sensitivity 2 v 2 . 0 0 m ay 1 , 20 12 general descri ption s the s5881 - aa is a uni polar hall - e ffect s ensor ic fabricated from cmos technology. the de v i c e i n teg r a t es a v o l ta g e r e g u l ato r , h a l l s en s or w i th d y na m i c o f f s et c an c e l l a t i o n s y s te m , small signal amplifier, s c h m i tt t r i gger and a n open - drain o ut p ut driver . with suitable output pull up, they can be used with bipolar or cmos logic circuits. these hall - effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150 ,and are more stable with both temperature and supply voltage changes. the unipolar switching characteris tic makes these devices ideal for use with a simple bar or rod magnet. thanks to i ts wide operating voltage range 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) or in a plastic single in line ( sip 3l f lat) . 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 ( b op ) magnetic flux density applied on th e 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)
s 58 81 - aa unipolar hall switch - low sensitivity 3 v 2 . 0 0 m ay 1 , 20 12 p i n s d e f i n i t i on a n d d esc r i p t i on ab s o l u te m ax i m u m r at i ng s p a r a m eter s y m b o l v a l ue un i ts s upp l y v o l t a g e v d d 28 v s upp l y c u rr e n t i dd 50 m a output v o l t a g e v o ut 28 v output c u rr e n t i o ut 50 m a s to r age t e m pe r atu r e range t s - 65 to 1 7 0 c a b s o l u t e m a x i m u m r at i ngs o pe r at i ng t e m pe r atu r e r a nge s y m b o l v a l ue un i ts t e m pe r atu r e s u ff i x
s 58 81 - aa unipolar hall switch - low sensitivity 4 v 2 . 0 0 m ay 1 , 20 12 ge n e r al e l ec t ri c al s p ec i f i cat i on s dc o pe r a t i n g p a r a m ete r s t a = 25 , v dd = 3 . 5 v to 2 4 v ( u n l e s s ot h e r w i s e s p e c i f i ed) p a r a m 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 upp l y v o l t a g e v dd o p e r a t i ng 3 . 5 24 v s upp l y c u rr e n t i dd b < b rp 1.5 2. 5 5 m a output s a t u r a t i o n v o l t a g e v d s o n i o ut = 20 m a , b > b op 0. 4 0. 5 v output l ea k a g e c u rr e n t i o ff b < b rp v o ut = 24 v 0. 0 1 10 a output r i s e t i m e t r r l = 1k ? ? m a gn et i c s p e c i f i c at i on s dc o pe r a t i n g p a r a m e te r s v dd = 3 . 5v to 2 4v ( un l e s s othe r w i s e s pe c i f i e d) s5881 - aa p a r a m 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 o p e r a t i ng p o i n t b op ta=25 rp 15 35 50 g hy s t e r e s i s b h y s 30 g app li cat i o n i n f or mat i o n typical th ree - wire application circuit
s 58 81 - aa unipolar hall switch - low sensitivity 5 v 2 . 0 0 m ay 1 , 20 12 automotive and harsh, noisy environments three - wire circuit application comments for proper operation, a 100nf bypass capacitor should be placed as close as possible to the device between the vdd and ground pin. for reverse voltage protection, it is recommended to connect a resistor or a diode in series with the vdd pin. when using a resistor, three points are important: - the resistor has to limit the reverse current to 50ma maximum (vcc / r1 - the resulting device supply voltage vdd has to be higher than vdd min (vdd = vcc C r1.idd) - the resistor has to withstand the power dissipated in reverse voltage condition (pd = vcc 2 / r1) u sing a diode, a reverse current cannot flow and the vo lt age drop is almost constant ( 0.7v). both solutions provide the required reverse voltage protection. when a weak power supply is used or when the devi ce is intended to be used in noisy environment, it is recommended that figure 13.3 from the application information section is used. the low - pass filter formed by r1 and c1 and the z ener diode z1 bypass the disturbances or voltage spikes occurring on the d evice supply voltage vdd. the diode d1 provides additional reverse voltage protection. esd p r eca u t i on s el e c t r o n i c s e m i c ondu c tor p r odu c ts a r e s en s i t i v e 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 g e c ont r o l p r o c e du r es w h en e v er h a n d l i ng s e m i c ondu c tor p r o d u c t s .
s 58 81 - aa unipolar hall switch - low sensitivity 6 v 2 . 0 0 m ay 1 , 20 12 packa g e i n f o r ma t io n package ua, 3 - pin sip :
s 58 81 - aa unipolar hall switch - low sensitivity 7 v 2 . 0 0 m ay 1 , 20 12 package se , 3 - pin sot - 23 : ordering information part no. pb - free temperature code package code packing s5881 - aa esot yes - 40c to 85c sot - 23 7 - in. reel, 3000 pieces/re el s5881 - aa eua yes - 40c to 85c to - 92 bulk, 1000 pieces/bag s5881 - aa k sot yes - 40c to 12 5c sot - 23 7 - in. reel, 3000 pieces/reel s5881 - aa k ua yes - 40c to 125 c to - 92 bulk, 1000 pieces/bag s5881 - aa lsot yes - 40c to 150c sot - 23 7 - in. reel, 3000 piec es/reel s5881 - aa lua yes - 40c to 150c to - 92 bulk, 1000 pieces/bag
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