WSH137 winson reserves the right to make changes to improve reliability or manufacturability. ?winson, 2015/5/7 linear hall effect sensor ic features: ? wide operating range 3.0~12v, - 40 ~125 ? flat response to 23khz ? high sensitivity 4.3mv/g ? wide sensible magnetic field range on different supplied voltage 450 gauss on 5v supplied voltage 1,000 gauss on 12v supplied voltage. low operating current 3ma ? two package styles to - 92s/sot - 23 available. ? built - in temperature compensated circuit to minimize temperature?s effect functional description : the w137 integrates hall sensing element, linear amplifer, sensitivity controller and emitter follower output stage.it accurately tracks extremely small change in magnetic flux density ? generally too small to operate hall effect switch. w137 can be applied as current sensor, tooth sensor, proximity detectors and motion detectors. as sensitive monitor of magnetic flux, it can effectively measure a system?s performance with negligible system loading w hile providing isolation from contaminated and electrically noisy environments.
WSH137 winson reserves the right to make changes to improve reliability or manufacturability. ?winson, 2015/5/7 electrical characteristics: (t=+25?c, vdd=5.0v ) characteristic symbol test conditions min typ max units supply voltage vcc 3.0 12 v supply current isupply b=0 gauss 3.0 5.0 ma quiescent vout v0g b=0 g ( a grade) 2.45 2.5 2.55 v b=0 g ( b grade) 2.4 2.5 2.6 sensitivity vout b= 0 to 400 g 3.85 4.3 4.75 mv/g bandwidth bw 23 khz measurable guass range mgr vdd=5v 450 gauss vdd=12v 1000 temperature drift vout b=0 gauss 0.5 mv/ 1. all output - voltage measurements are made with a voltmeter having an input impedance of at least 100 k 2. do not apply any load on output pin, it will degrade ic performance.
WSH137 winson reserves the right to make changes to improve reliability or manufacturability. ?winson, 2015/5/7 package information: to92s: sot23:
WSH137 winson reserves the right to make changes to improve reliability or manufacturability. ?winson, 2015/5/7 characteristics diagram: y = 0.004x + 2.5363 r2 = 0.9993 0.000 1.000 2.000 3.000 4.000 5.000 6.000 -1000 -800 -600 -400 -200 0 200 400 600 800 1000 v g WSH137 vout vs. magnetic field with vdd 5v n s y = 0.0033x + 1.7037 r2 = 0.9988 0.000 0.500 1.000 1.500 2.000 2.500 3.000 3.500 -700 -600 -500 -400 -300 -200 -100 0 100 200 300 400 500 600 700 v g WSH137 vout vs. magnetic field with vdd 3.3v n s
WSH137 winson reserves the right to make changes to improve reliability or manufacturability. ?winson, 2015/5/7 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 mv/g v WSH137 sensitivity vs. vdd 2.000 2.500 3.000 3.500 4.000 4.500 5.000 5.500 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 ma v WSH137 current vs. vdd
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