wsh130 w i n s o n reserv es th e rig h t to m a k e ch an g e s to im p r o v e reliab ility o r m a n u f actu r ab ility . hall ef f ect sensor ic f e a t ur es: operates from 2.4v to 26v supply voltage with reverse voltage protection operates with m a gnetic fields from dc to 15khz on-chip hall sensor on-chip tem p erature com p ensation circuitry m i nim i zes shifts in on and of f points and hysteresis over tem p erature and supply voltage ideal sensor for speed m easurem ent, revolution counting, positioning, and dc brushless m o tors specifica tions : switching type: latch or non-latch type (s pole) latch: on(l) with m a gnetic south pole and of f (h) with north pole non-latch: on (l) with m a gnetic south pole and of f(h) without m a gnetic field functional description : w s h130 is designed to integrate hall sensor with output driver together on the sam e chip, it is suitable for speed m easurem ent, revolution counting, positioning, and dc brushless m o tors. it includes a tem p erature com p ensated voltage regulator , a dif f erential am plifier , a hysteresis controller and a open-collector output driver capable of sinking up to 20m a current load. an on-chip protection resistor is im plem ented to prevent reverse power fault. the tem p erature-dependent bias increases the supply voltage of the hall plates and adjusts the switching points to the decreasing induction of m a gnets at higher tem p eratures. subsequently , the open collector o u tput switch e s to the app r opria te sta t e. w s h130 are rated for operation over tem p erature range from ?40 ? c to 125 ? c and voltage ranges from 2.4v to 26v . pin descriptions: name p / i / o p i n # description v d d p 1 positive power supply g n d o 2 ground v o u t o 3 output pin ?w i n son, 2005/ 8/ 25
wsh130 w i n s o n reserv es th e rig h t to m a k e ch an g e s to im p r o v e reliab ility o r m a n u f actu r ab ility . absolute maximum ra ting (a t t a =25 ? c) supply v o ltage vcc -------------------------- 26v output breakdown v o ltage v out ( b r eakdown) ---------------- 30v magnetic flux density b -------------------------- unlim ited reverse protection v o ltage v r -------------------------- 26v output on current (c ontinuous) ic -------------------------- 25m a operating t e m p erature range t a -------------------------- (-40 ? c to +125 ? c) s t orage t e m p erature range t s -------------------------- (-65 ? c to +150 ? c) package power dissi pation pd -------------------------- 500m w electrical char acteristics: ( t = + 2 5 ? c, vcc=2.4v to 26v) characteristic s y m b o l t e st c o n d i t i o n s m i n t y p m a x u n i t s supply v o ltage vcc 2.4 26 v output saturation v o ltage v out (sat) vcc=12v ,ic=10m a b > bop 0.4 0 .7 v output leakage current i l e a k a g e v c c = 1 2 v , b < b r p < 0.1 10 ua supply current isupply vcc=12v ,output open 4.0 8 ma output rise t i m e t r vcc=12v ,rl=2k cl=20pf 1.0 10 us output falling t i m e tf vcc=12v ,rl=2k cl=20pf 0.3 1 .5 us function bloc k: ?w i n son, 2005/ 8/ 25
wsh130 w i n s o n reserv es th e rig h t to m a k e ch an g e s to im p r o v e reliab ility o r m a n u f actu r ab ility . ma gnetic char acteristics: c h a r a c t e r i s t i c s y m b o l g r a d e m i n . t y p . m a x . u n i t operating point bop a + 30 + 50 guass b + 50 +70 guass nl + 150 guass release point brp a -50 - 30 guass b - 7 0 -50 guass n l 0 guass hysteresis w i ndow bhys 3 0 2 0 0 g u a s s or dering inf o r m a t ion: ?w i n son, 2005/ 8/ 25
wsh130 w i n s o n reserv es th e rig h t to m a k e ch an g e s to im p r o v e reliab ility o r m a n u f actu r ab ility . p a c k a ge inf o r m a t ion: sot23: ?w i n son, 2005/ 8/ 25
wsh130 w i n s o n reserv es th e rig h t to m a k e ch an g e s to im p r o v e reliab ility o r m a n u f actu r ab ility . a pplica t ion cir cuit: fan application: magnetic detector: ?w i n son, 2005/ 8/ 25
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