SS41 bipolar hall-effect position sensor 2012 1 v2.00 may 1, features and benefits ? 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) application examples ? brushless dc motor commutation ? automotive, consumer and industrial ? solid-state switch ? speed measurement ? revolution counting ? angular position detection ? proximity detection
SS41 bipolar hall-effect position sensor 2 v2.00 may 1, 2012 general description the SS41 is an integrated hall effect latched sensor designed for electronic commutation of brush-less dc motor applications. the device integrates 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. 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. if a magnetic flux density larger than threshold bop, output is turned on (low). the output state is held until a magnetic flux density reversal falls below brp, causing output to be turned off (high). thanks to its wide operating voltage range and extended choice of temperature range, it is quite suitable for use in dc motor 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 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)
SS41 bipolar hall-effect position sensor 3 v2.00 may 1, 2012 pin definitions and descriptions sot pin sip pin name type function 1 1 vdd 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 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 absolute maximum ratings operating temperature range symbol value units temperature suffix ?e? ta -40 to 85 c temperature suffix ?k? ta -40 to 125 c temperature suffix ?l? ta -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.
SS41 bipolar hall-effect position sensor 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 5 10 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 0.4 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 0.01 5 a output r i s e t i m e t r r l = 1k ? , c l = 20pf 0.3 1.5 s output f a ll t i m e t f r l =1k ? , c l = 20pf 0.3 1.5 s ? ? [pku1]: ? ?? ? ? 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 5 37 70 g r e l ea s e p o i n t b rp -70 -37 -5 g hy s t e r e s i s b h y s ta=25 ,vdd=5v dc 75 g application information ?
SS41 bipolar hall-effect position sensor package information package f, 3-pin sip: 5 v2.00 may 1, 2012
SS41 bipolar hall-effect position sensor 6 v2.00 may 1, 2012 package ft, 3-pin sot-23 ordering information part no. pb-free temperature code package code packing SS41esot yes -40c to 85c sot-23 7-in. reel, 3000 pieces/ reel SS41eua yes -40c to 85c to-92 bulk, 1000 pieces/ bag SS41ksot yes -40c to 125c sot-23 7-in. reel, 3000 pieces/ reel SS41kua yes -40c to 125c to-92 bulk, 1000 pieces/ bag SS41lsot yes -40c to 150c sot-23 7-in. reel, 3000 pieces/ reel SS41lua yes -40c to 150c to-92 bulk, 1000 pieces/ bag
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