hall ef f e ct switc h ic f e a t ur es: z operates from 2.4v to 26v supply volta ge with reverse vo ltage protection z operates with m a gnetic fields from dc to 15khz z on-chip hall sensor z on-chip tem p eratu r e co mpensation circu itr y m i nim i zes shifts in on and of f points and hysteresis over tem p erature and supply voltage z ideal s e nsor for speed measurem ent, revolution counting, pos ition i ng, and dc brushless motors z on(l) with m a gnetic south pole and of f (h) with north pole functional description : fh130 is designed to integrate hall sensor with output driver together on the sam e chip, it is su itable for speed m easurem ent, revolution countin g, position i n g, and dc brushles s motors. it includes a tem p eratu r e compensated vo ltage regu lator , a dif f erential am plifier , a hysteres is cont roller and a open-collector output driver capable of sinking up to 20m a current lo ad. an on-chip protection resistor is im plem ented to preven t reverse power fault. the tem p erature-d e pend ent bias increases the supply voltage of the hall p l ates and adjusts the switching points to th e de creas ing ind u cti on 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. wsh130 ar e rated for operation over tem p erature range from ?40 ? c to 125 ? c and voltage ranges from 2.4v to 26v . pi n descripti o ns: name p / i / o p i n # description v d d p 1 positive po wer supply g n d o 2 ground v o u t o 3 output pin absol u te 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 25ma 30v fh130 hall effect latch sensor
reverse protection v o ltage v r --------------- ----------- 26v output on current (continuous) ic ------------------ -------- 25m a operating t e m p erature range t a --------------- ----------- (-40 ? c to +125 ? c) s t orage t e mperatu r e range t s --------------- ----------- (-65 ? c to +150 ? c) package power dissipation pd ------------------ -------- 500m w e l ectrical 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=10ma b > bop 0.2 0 .6 v output leak age current ileakag 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 s output falling t i m e tf vcc=12v ,rl=2k cl=20pf 0.3 1 .5 s functi on bloc k: 2 5 ma 30 v fh1 3 0 hall effect latch sensor
m a 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 p o int bop a + 30 + 50 guass b + 50 + 70 guass c + 1 2 0 g u a s s release point brp a -50 - 30 guass b - 7 0 -50 guass c -120 guass hysteresis w i ndow b hys 6 0 1 0 0 g u a s s or dering inf o r m a t ion: 2 5 ma 30 v fh1 3 0 hall effect latch sensor
package information: sot-23: 2 5 ma 30 v fh1 3 0 hall effect latch sensor sip-3: marking marking
a ppli c a t ion cir cuit: fan application: magnetic detector: 2 5 ma 30 v fh1 3 0 hall effect latch sensor
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