ss1 0 50 unipolar hall - effect digital switch 1 v 3 . 1 0 nov 1 , 2013 packages f eat u r es a n d b e n ef i ts 3 pin sot23 (suffix so) 3 pin sip (suffix ua) ? 4 .5v to 24v operation ? - 40 c to 150 c 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 functional block diagram application examples ? automotive, consumer and industrial ? solid - state switch ? brushless dc motor commutation ? speed detection ? angular position detection ? linear position detection ? proximity detection general description the SS1050 is a uni polar hall - effect sensor ic fabricated from bipolar technology. 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. 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 c , and are more stable with both temperature and supply voltage changes. the unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. thanks to its wide ope rating 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 flat). both 3- lead packages are rohs compliant. v dd out voltage regulatr chopper hall plate gnd sip package sot package pin 1 ? v dd pin 1 ? v dd pin 2 ? gnd pin 2 ? out pin 3 ? out pin 3 ? gnd
ss1 0 50 unipolar hall - effect digital switch 2 v 3 . 1 0 nov 1 , 2013 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) pin definitions and descriptions sot pin sip pin name type function 1 1 v dd supply supply voltage pin 2 3 out output open drain output pin 3 2 gnd ground ground pin absolute maximum ratings parameter symbol value units supply voltage v dd 28 v supply current i dd 50 ma output voltage v out 28 v output current i out 50 ma storage temperature range t s - 65 to 170 c operating temperature range symbol value units temperature suffix ?e? t a - 40 to 85 c temperature suffix ? k ? t a - 40 to 12 5 c temperature suffix ?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.
ss1 0 50 unipolar hall - effect digital switch 3 v 3 . 1 0 nov 1 , 2013 general electrical specifications dc operating parameters ta = 25c, v dd = 4 .5v to 24v (unless otherwise specified) parameter symbol test conditions min typ max units supply voltage v dd operating 4 .5 24 v supply current i dd b < b rp 4 5 7 ma output saturation voltage v dson i out = 20ma, b > b op 0.3 0.5 v output leakage current i off b < b rp v out = 24v 0. 1 10 a output rise time t r r l = 820 ?, c l = 20pf 0. 04 2.0 s output fall time t f r l = 820 ?, c l = 20pf 0.18 2.0 s magnetic specifications package parameter symbol test conditions min typ max units ua operating point b op t a =25c,v dd =12v dc 100 120 150 g release point b rp 50 70 120 g hysteresis b hys t 50 g so operating point b op t a =25c,v dd =12v dc - 150 - 120 - 100 g release point b rp - 120 - 70 - 50 g hysteresis b hys t 50 g output behavior versus magnetic pole dc operating parameters t a = - 40 c to 150 c , v dd = 4 .5v to 24v (unless otherwise specified) test conditions (ua) test conditions (s o ) 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 north pole magnetic field applied to the marked face.
ss1 0 50 unipolar hall - effect digital switch 4 v 3 . 1 0 nov 1 , 2013 application information 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
ss1 0 50 unipolar hall - effect digital switch 5 v 3 . 1 0 nov 1 , 2013 package so , 3- pin sot - 23: ordering information part no. pb - free temperature code package code packing SS1050 esot yes - 40c to 85c sot - 23 7- in. reel, 3000 pieces/reel SS1050 eua yes - 40c to 85c to - 92 bulk, 1000 pieces/bag SS1050 ksot yes - 40c to 12 5c sot - 23 7- in. reel, 3000 pieces/reel SS1050 kua yes - 40c to 12 5c to - 92 bulk, 1000 pieces/bag SS1050 lsot yes - 40c to 150c sot - 23 7- in. reel, 3000 pieces/reel SS1050 lua 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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