H X 31 44 Spe c if i ca ti ons S en s i ti vi ty Un i p ol ar H al l E ff ect S wi tch HX3144 i s an uni pol ar Hal l effe ct s ens or IC . It i ncorporat e s advanc ed chopper s t abi l i zat i on t echnol ogy t o provi de acc urat e and s t abl e m agnet i c s wi t ch poi nt s . The des i gn, s peci fi ca t i ons and perfor m ance have been opt i m iz ed for appl i cat i ons of s ol i d s t at e s wi t ches . The out put t rans i s t or wi l l be s wi t ched on (B OP) i n t he pres enc e of a s uffi ci ent l y s t ron g S out h pol e m agnet i c fi el d fac i ng t he m arked s i de of t he package . S i m il arl y, t he out put wi l l be s wi t ched off (B R P) i n t he pres ence of a weake r S out h fi el d and rem ai n off wi t h 0 fi el d. The package t yp e i s i n a Ha l oge n Fr e e vers i on was veri fi ed by t hi rd part y organi z at i on. Ha l oge n Fr ee packa ge i s avai l abl e by cus t om er s opt i on. F e at ure s a nd B e ne fi ts DM OS Hal l IC Techn ol ogy. R evers e bi as prot ect i on on power s uppl y pi n. S ol i d-S tat e R el i abi l i t y. C hopper s t abi l i zed am pl i fi er s t age. Uni pol ar, out put s wi t ches wi t h abs ol ut e val ue of S outh pol e from m agne t . Opera t i on down t o 3. 0V. Hi gh S ens i t i vi ty for di rect ree d s wi t ch repl ac em ent appl i cat i ons . 100% t es t ed at 125 for K S pec. C us t om s ens i t i vi t y / Tem pera t ure s el ect i on are avai l abl e. Good ES D P rot ect i on . A p pli c ati ons S ol i d s t at e s wi t ch Li m i t s wi t ch C urrent l i m it In t err upt er C urrent s ens i ng M agnet prox im i t y s ens or for ree d s wi t ch repl ac em ent Or de r ing num ber Part No. T emp erat u re S uf fi x P a cka g e T y pe HX3144UA (-40to + 125) ( T O- 9 2 S) HX3144ESO (-40to + 105) ( SOT -23) F unc ti onal Di ag ra m VDD O u t V olt a ge Re gul a tor A m p H all S en sor GND 1 / 4H X 314 4 Sp ec i f ic ati ons S en s iti vi ty Un i p olar H al l E ff ect S wi tch A bs olut e Ma xim um R a ting s At (T a=25 ) Ch aracte ri s ti cs V al u e s Un i t S uppl y vol t age ,( VDD) 28 V Out put Vol t age,( Vo) 28 V R evers e Vol t age , (V DD) -2 8 V M agnet i c fl ux dens i t y Unl imite d Ga uss Out put curre nt , (IOUT ) 50 mA Ope r at ing Te mpe r a t ure Ra nge , ( Ta) -4 0 to +1 25 S t orage t em pera t ure range, (T s) -5 5 to +1 50 M ax im um J unct i on Tem p,(T j ) 150 / W (j a ) 206 Therm al R es i s t ance / W ( j c) 148 P ackag e P ower Di s s i pat i on, (P D) 606 m W N o t e: D o n ot a p pl y re v e rs e v o l t a g e t o VD D a n d VO U T P i n , I t m a y b e c a u se d f o r Mi ss f u n c t i o n o r d a m a ge d d e v i c e . E le c tr ic al Sp ec i f ic ati ons DC Oper at i ng Par amet er s TA =+25, VD D = 1 2 V Par amet er s T es t Con d iti on s Mi n T yp Max U n it s Su p p ly V o lta ge , ( V DD) O p e ra tin g 3 . 0 2 4 . 0 V Su p p ly Cu r re n t, ( IDD) B<B OP 2 . 5 5 . 0 mA O u tp u t Sa tu ra ti o n V o lta ge , ( VSat ) I OUT = 2 0 mA , B>B OP 4 0 0 . 0 mV O u tp u t Le a ka ge Cu r re n t, ( Iof f ) I OFF B<B RP , V OUT = 2 0 V 1 0 . 0 u A O u tp u t Ris e Tim e , ( T R) 0 . 0 4 0 . 4 5 u S R L= 1k, C L = 20p F O u tp u t Fa ll Tim e , ( T F) 0 . 1 8 0 . 4 5 u S R L= 82 0 C L = 20p F Ele c tr o - S ta ti c D is c h a rge HM B 4 K V O p e ra te Po in t, ( B OP) 6 0 1 0 0 G a u s s Re le a s e Po in t, ( B R P) 4 0 8 0 G a u s s H ys t e r e s is , ( B HYS) 2 0 G a u s s 2 / 4