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3901003881 rev 016 features and benefits operating voltage range fro m 18v high magnetic sensitivity ? m purpose cmos t echnology chopper-stabilized amplifier low current consump t ion open drain ou t pu t thin sot23 3l and flat to- 9 both rohs compliant packages ordering code product code temperature code package code us3881 e us3881 k us3881 l us3881 e us3881 k us3881 l legend : temperature code: l for temperature range e for temperature range k for temperature range package code: ua for to option code: xxx packing form: re for reel ordering example: us3881kua 1 functional diagram low voltage & hi gh page 1 of 11 m 2.2v to m ul t i- s t age 9 2 3l application exa m automotive, cons u solid-state swi t ch brushless dc mo t speed de t ec t ion linear position de t angular position d proximity de t ec t io n temperature code package code option code packing form code ua aaa-000 ua aaa-000 ua aaa-000 se aaa-000 se aaa-000 se aaa-000 l for temperature range -40c to 150c e for temperature range -40c to 85c k for temperature range -40c to 125c ua for to -92(flat), se for tsot xxx -000: standard version re for reel , bu for bulk us3881kua -aaa-000-bu 2 general descriptio n the melexis us3881 is a designed in mixed signal cm o the device integrates a vol t sensor with dynamic offset c schmitt trigger and an open-d r in a single package . the low operating voltage an d temperature range make i t s automotive, industrial and co n applica t ions . the devices are delivered in a transistor (tsot) for surface in a plastic single in line (to hole moun t. both 3-lead packages are roh s u s 38 8 1 hall lat ch gh sensitivity data shee t mar/12 m ples u mer and i ndus t rial t or commu t a t ion t ec t ion d e t ec t ion n option code packing form code bu bu bu re re re n a hall-effect la t ch o s t echnology . t age regulator, hall c ancellation sys t em , r ain output driver, all d extended choice o f t s uitable for use in n sumer low vol t age a thin small ou t line mount process and - 92 flat) for t hrough- s complian t.
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 2 of 11 data shee t mar/12 table of contents 1 functional diagram ................................................... ................................................... .. 1 2 general description ............................. ................................................... ........................ 1 3 glossary of terms ............................... ................................................... ........................ 3 4 absolute maximum ratings ........................ ................................................... ................ 3 5 pin definitions and descriptions ................ ................................................... ................ 3 6 general electrical specifications ............... ................................................... ................ 4 7 magnetic specifications ......................... ................................................... ..................... 4 8 output behaviour versus magnetic pole ........... ................................................... ........ 4 9 detailed general description .................... ................................................... .................. 5 10 unique features ................................ ................................................... ......................... 5 11 performance graphs ............................. ................................................... .................... 6 12 application information ........................ ................................................... ..................... 7 12.1 typical three-wire application circuit ................................................... ................................................. 7 12.2 two-wire circuit ................................................... ................................................... ................................7 12.3 automotive and harsh, noisy environments three -wire circuit ................................................... ......... 7 13 application comments ........................... ................................................... ................... 7 14 standard information regarding manufacturability of melexis products with different soldering processes...................... ................................................... .................. 8 15 esd precautions ................................ ................................................... ........................ 8 16 package information............................. ................................................... ..................... 9 16.1 se package (tsot-3l) ................................................... ................................................... ..................... 9 16.2 ua package (to-92 flat) ................................................... ................................................... ................. 10 17 disclaimer ..................................... ................................................... ............................ 11
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 3 of 11 data shee t mar/12 3 glossary of terms millitesla (mt), gauss units of magnetic flux dens i t y : 1mt = 10 gauss rohs restriction of hazardous subs t ances tsot thin small outline transistor (tsot package) ? also referred with the melexis package code ?se? esd electro-static discharge bldc brush-less direc t -curren t 4 absolute maximum ratings parame t er symbol value uni t s s upp l y v o l t a g e v dd 20 v s upp l y current i dd 50 m a output v o l t a g e v o ut 20 v output current i o ut 50 m a storage temperature range t s -50 to 150 c m a x i m u m j unc t i on temperature t j 165 c table 1: absolute maximum ra t ings exceeding the absolute maximum ratings may cause pe rmanent damage. exposure to absolu t e-maximum- rated conditions for extended periods may affect de vice reliabili t y . operating temperature range symbol value uni t s temperature s u ff i x ? e ? t a -40 to 85 c temperature s u ff i x ? k ? t a -40 to 125 c temperature s u ff i x ? l ? t a -40 to 150 c 5 pin definitions and descriptions se pin ua pin name type func t ion 1 1 v dd s upp l y s upp l y v o l t a g e p i n 2 3 out output open dr a i n output p i n 3 2 gnd ground ground p i n table 2: pin definitions and descrip t ions se package ua package
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 4 of 11 data shee t mar/12 a d d a d d 6 general electrical specifications dc operating parameters t = 25 o c, v = 12v (unless otherwise speci f ied) parameter symbol test conditions min typ max uni t s s upp l y v o l t a g e v dd o p e r a t i ng 2.2 18 v s upp l y current i dd b < b rp 1.5 2.5 5 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 current i o ff b < b rp, v out = 24 v 0.01 10 a output r i s e t i m e t r r l = 1k , c l = 20pf 0.25 s output f a ll t i m e t f r l = 1k , c l = 20pf 0.25 s m a x i m u m s w i t ch i ng frequency f s w 10 k h z se package t h e r m a l r e s i s t a nc e r th s i ng l e l a y e r (1s) jedec board 301 c/w ua package t h e r m a l r e s i s t a nc e r th 200 c/w table 3: electrical speci f ica t ions 7 magnetic specifications dc operating parameters t = 25 o c, v = 2.2v to 18v (unless otherwise speci f ied) parameter symbol test conditions min typ max uni t s o p e r a t i ng p o i n t b op e spec., t a = 85c 1 5 9 m t r e l ea s e p o i n t b rp - 9 - 5 - 1 m t hy s t e r e s i s b h y s t 5.5 10 12 m t o p e r a t i ng p o i n t b op l spec., t a = 150c 1 5 9 m t r e l ea s e p o i n t b rp - 9 - 5 - 1 m t hy s t e r e s i s b h y s t 5.5 10 12 m t table 4: magnetic speci f ica t ions 8 output behaviour versus magnetic pole o o dc operating parameters t a = -40 c to 150 c, v dd = 2.2v to 18v (unless otherwise speci f ied) parameter test conditions (se) out (se) test co nditions (ua) out (ua) south po l e b < b rp h i gh b > b op l o w north po l e b > b op l o w b < b rp h i gh table 5: output behaviour versus magnetic pole south pole north pole north pole south pole out = high out = low (v dson ) out = high out = low (v dson ) se package ua package
3901003881 rev 016 9 detailed general de sc based on mixed signal cmos tec h sensitivity. this multi-purpose lat ch the chopper-stabilized amplifier u s observed with hall sensors and a m and contributes to smaller chip siz e size is also an important factor to m this combination results in more s t the operating voltage from 2.2v to range according to ?l?, ?k? and ?e? consumer low voltage applica t ions . the output signal is open-drain typ e a pull-up resistor tied between a pu 10 unique features the us3881 exhibits latch magnet i poles to operate properly . se package - latch chara ct the device behaves as a latch wit h means magnetic fields with equival removing the magnetic field (b 0 ) device as a magnetic memory . a magnetic hysteresis b hyst keeps output oscillation near the switchin g low voltage & hi gh page 5 of 11 sc ription h nology, melexis us3881 is a hall-effect device with hig h ch suits most of the application requiremen t s . s es switched capacitor techniques to suppress the of fse t m plifiers. the cmos technology makes this advanced t e e and lower current consumption than bipolar technol og y m inimize the effect of physical s t ress . t able magnetic characteristics and enables faster an d m o 18v, low current consumption and large choice of o per a specification make this device suitable for automot ive, in . e . such output allows simple connectivity with ttl o r c m pu ll-up voltage and the device ou t pu t. i c switching characteristics. therefore, it requires both s ct eristic ua package - latch char a h symmetric operating and release switching points ( b op l ent strength and opposite direction drive the outpu t hig h ) keeps the output in its previous state. this latch ing pr op b op and b rp separated by a minimal value. this hyster e g poin t. u s 38 8 1 hall lat ch gh sensitivity data shee t mar/12 h magne t ic t generally e chnique possible y . the small chip m ore precise design . a ting t empera t ure in dustrial and m os logic by using s outh and nor t h a cteristic op =|b rp |). this h and low . op erty defines t he e sis preven t s
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 6 of 11 data shee t mar/12 11 performance graphs
3901003881 rev 016 12 application informa ti 12.1 typical three-wire a pp 12.3 automotive and hars h three-wire circuit 13 application comm en for proper operation, a 100nf byp a the v dd and ground pin . for reverse voltage protection, it is when using a resistor, three point s - the resistor has to limit th - the resulting device supp l - the resistor has to withst a when using a diode, a reverse cur r therefore, a 100 /0.25w resistor f both solutions provide the required when a weak power supply is use d recommended that figure 13.3 fro m the low-pass filter formed by r1 an occurring on the device supply volt ag low voltage & hi gh page 7 of 11 ti on pp lication circuit 12.2 two-wir e h , noisy environments no t e : with this circuit, p r currents can be de connecting wires . the resistors rl a bias the input cur r specifications for l b rp : i off = i r + b op : i on = i off + en ts a ss capacitor should be placed as close as possible to t recommended to connect a resistor or a diode in ser ie s s are impor t an t: h e reverse current to 50ma maximum (v cc / r1 50m a) l y voltage v dd has to be higher than v dd min (v dd = v cc a nd the power dissipated in reverse voltage conditio n ( p r ent cannot flow and the voltage drop is almost cons tan t f or 5v application and a diode for higher supply vol tage reverse voltage pro t ec t ion . d or when the device is intended to be used in noisy en v m the application information section is used . an d c1 and the zener diode z1 bypass the disturbances o ag e v dd . the diode d1 provides additional reverse volt a u s 38 8 1 hall lat ch gh sensitivity data shee t mar/12 e circuit r ecise on and off de tected using only t wo a nd rb can be used t o r ent. refer to the par t l imiting values . i dd = v dd /r b + i dd i out = i off + v dd / r l t he device be t ween s with the v dd pin . a) ? r1 .i dd ) 2 p d = v cc / r1) t ( 0 . 7v) . are recommended . v ironment, it is o r voltage spikes a ge pro t ec t ion .
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 8 of 11 data shee t mar/12 14 standard information regarding manufacturability of melexis products with different soldering processes our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test metho ds: reflow soldering smds (s urface m ount d evices) ? ipc/jedec j-std-020 moisture/reflow sensitivity classification for nonh ermetic solid state surface mount devices (classification reflow profiles according to table 5-2) ? eia/jedec jesd22-a113 preconditioning of nonhermetic surface mount device s prior to reliability testing (reflow profiles according to table 2) wave soldering smds (s urface m ount d evices) and thds (t hrough h ole d evices) ? en60749-20 resistance of plastic- encapsulated smds to combin ed effect of moisture and soldering heat ? eia/jedec jesd22-b106 and en60749-15 resistance to soldering temperature for through-hol e mounted devices iron soldering thds (t hrough h ole d evices) ? en60749-15 resistance to soldering temperature for through-hol e mounted devices solderability smds (s urface m ount d evices) and thds (t hrough h ole d evices) ? eia/jedec jesd22-b102 and en60749-21 solderability for all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature prof ile etc) additional classification and qualificatio n tests have to be agreed upon with melexis. the application of wave soldering for smds is allo wed only after consulting melexis regarding assuran ce of adhesive strength between device and board. melexis is contributing to global environmental con servation by promoting lead free solutions. for more information on qualifications of rohs compliant products (rohs = european directive on t he restriction of the use of certain hazardous substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx 15 esd precautions electronic semiconductor products are sensitive to electro static discharge (esd) . always observe electro static discharge control pro cedures whenever handling semiconductor produc t s .
3901003881 rev 016 0.891 +/- 0.05 0.20 2.90 b s c see note 3 0.95 b s c 0.30 0 . 45 16 package informati on 16.1 se package (tsot-3l ) low voltage & hi gh page 9 of 11 0 . 45 1.90 b s c 0.127 + 0.023 - 0.007 0.15 0.20 on ) u s 38 8 1 hall lat ch gh sensitivity data shee t mar/12
3901003881 rev 016 1.65 + /- 0.10 3.00 + /- 0.20 2.5 m i n see note 4 1 4 . 50 + / - 0.5 16.2 ua package (to-92 fl a 4.10 + /- 0.20 + 0.10 1.50 + 0.10 0.00 0.20 2.62 - 0.11 0.74 - 0.11 5 no m + 0.02 0.46 - 0.03 1.27 + /- 0.03 2.54 + /- 0.03 0.38 + /- 0.03 45 n o m 3 n o m 1.87 2.13 1.27 1.53 ma r low voltage & hi gh page 10 of 11 1 4 . 50 + / - 0.5 a t) 0.10 n o t e s: 0.11 m 5 max 1. all d i m e nsion s are i n m illi m e t e r s 2. package d i m e nsion exclusive m o l d i ng fl a sh . 3. the end fl a sh sh a ll not exceed 0.127 mm on each sid e . 4. to preserve r e li a b ili t y, it i s recommended t o have t o t a l l ea d l e ng t h e qu a l to 2.5 mm m i n i m u m , measured f r o m the package li n e . m a r ki ng : 1 st l i n e : u38 - part number (u s 3881 ) 2 nd l i n e : yww y - l a st d i g i t of ye a r ww - ca l e nd a r w ee k 0.38 + /- 0.03 0.41 0.45 n o t e s: 1. all d i m e nsion s are i n m illi m e t e r s r ked s i d e u s 38 8 1 hall lat ch gh sensitivity data shee t mar/12
u s 38 8 1 hall lat ch low voltage & high sensitivity 3901003881 rev 016 page 11 of 11 data shee t mar/12 17 disclaimer devices sold by melexis are covered by the warranty and patent indemnification provisions appearing in its term of sale. melexis makes no warranty, expres s, statutory, implied, or by description regarding the information set forth herein or regarding the freed om of the described devices from patent infringemen t. melexis reserves the right to change specifications and prices at any time and without notice. therefo re, prior to designing this product into a system, it i s necessary to check with melexis for current infor mation. this product is intended for use in normal commerci al applications. applications requiring extended temperature range, unusual environmental requiremen ts, or high reliability applications, such as milit ary, medical life-support or life-sustaining equipment a re specifically not recommended without additional processing by melexis for each application. the information furnished by melexis is believed to be correct and accurate. however, melexis shall no t be liable to recipient or any third party for any d amages, including but not limited to personal injur y, property damage, loss of profits, loss of use, inte rrupt of business or indirect, special incidental o r consequential damages, of any kind, in connection w ith or arising out of the furnishing, performance o r use of the technical data herein. no obligation or liability to recipient or any third party shall ari se or flow out of melexis rendering of technical or other ser vices. ? 2012 melexis nv. all rights reserved. for the latest version of this document, go to our website at www.melexis.com or for additional information contact melexis direc t: europe, africa, asia: america: phone: +32 1367 0495 phone: +1 248 306 5400 e-mail: sales_europe@melexis.com e-mail: sales_usa @melexis.com iso/ts 16949 and iso14001 certified

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