SS443 unipolar hall-effect digital switch 1 v2.00 may 1, 2012 features and benefits ? a pplication examples ? automotive, consumer and industrial ? solid-state switch ? brushless dc motor commutation ? speed detection ? linear position detection ? angular position detection ? proximity detection ? 4.5v to 24v operation ? -40 to 150 superior temperature operation ? bipolar technology ? open-collector 25 ma output ? reverse battery protection ? small size-sot23 3l or sip 3l ? solid-state reliability ? resistant to physical stress ? activate with small, commercially available permanent magnets 3 pin sot23 (suffix so) 3 pin sip (suffix ua) functional block diagram vdd out voltage regulatr c hoppe r hall p late gnd s ip package sot package pin 1 ? v dd pin 1 ? v dd pin 2 ? gnd pin 2 ? out pin 3 ? out pin 3 ? gnd ?
SS443 unipolar hall-effect digital switch 2 v2.00 may 1, 2012 general description the SS443 is a unipolar hall-effect sensor ic fabricated from bipolar technology. the device in tegrates a voltage regulator, reverse battery protection diode, hall sensor with dynamic offset cancellation system, temperature compensation circuitry, small signal amplifier, schmitt trigger and an open-collector output to sink up to 25 ma. 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, de signed to operate continuously over extended temperatures to +150 ,and are more stable with both temperature and supply vo ltage changes. the unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. thanks to its wide operating vo ltage range and extended choice of temperature range, it is quite suitable for use in automotive, industrial and consum er applications. the device is delivered in a small outline transistor (sot) or in a plastic single in line (sip 3l flat). both 3-lead packages are rohs compliant. glossary of terms millitesla (mt), units of magnetic flux density: 1mt = 10 gauss rohs restriction of hazardous substances operating point (b op ) magnetic flux density applied on the bran ded 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)
SS443 unipolar hall-effect digital switch 3 v2.00 may 1, 2012 pin definitions and descriptions sot pin sip pin name type function 1 1 v dd s upp l y s upp l y v o l t a g e p i n 2 3 o ut o u t pu t open dr a i n output p i n 3 2 gnd g r ound ground p i n absolute maximum ratings absolute maximum ratings parameter symbol value units s upp l y v o l t a g e v dd 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 storage temperature range t s -65 to 170 c operat ing temperature range symbol value units temperature s u ff i x ? e ? t a -40 to 85 c temperature s u ff i x ? k ? t a -40 to 150 c temperature s u ff i x ? l ? t a -40 to 150 c exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute-maximum- rated conditions for extended periods may affect device reliability .
SS443 unipolar hall-effect digital switch 4 v2.00 may 1, 2012 general electrical specifications dc operating parameters t a = 25 , v dd = 4.5v to 24v (unless otherwise specified) parameter symbol test conditions min typ max units s upp l y v o l t a g e v dd o p e r a t i ng 4.5 24 v s upp l y c u rr e n t i dd b < b rp 4 5 7 m a output s a t u r a t i on v o l t a g e v d s on i out = 20ma, b > b op 0.3 0.5 v output l ea k a g e c u rr e n t i o ff b < b rp v out = 24 v 0.1 10 a output r i s e t i m e t r r l = 820? , c l = 20pf 0.04 2.0 s output f a ll t i m e t f r l =820 ? , c l = 20pf 0.18 2.0 s magnetic specifications dc operating parameters v dd = 4.5v to 24v (unless otherwise specified) parameter symbol test conditions min typ max units o p e r a t i ng p o i n t b op 150 170 190 g r e l ea s e p o i n t b rp 100 125 160 g hy s t e r e s i s b h y s ta=25 ,vdd=12v dc 45 g application information ?
SS443 unipolar hall-effect digital switch 5 v2.00 may 1, 2012 package information package a, 3-pin sip:
SS443 unipolar hall-effect digital switch 6 v2.00 may 1, 2012 package at, 3-pin sot-23: ordering information part no. pb-free temperature code package code packing SS443esot yes -40c to 85c sot-23 7-in. reel, 3000 pieces/ reel SS443eua yes -40c to 85c to-92 bulk, 1000 pieces/ bag SS443ksot yes -40c to 125c sot-23 7-in. reel, 3000 pieces/ reel SS443kua yes -40c to 125c to-92 bulk, 1000 pieces/ bag SS443lsot yes -40c to 150c sot-23 7-in. reel, 3000 pieces/ reel SS443lua yes -40c to 150c to-92 bulk, 1000 pieces/ bag ?
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