TSH181 general purpose hall effect latch 1/7 version: b13 to - 92 s description TSH181, hall-effect sensor, designed for electronic commutation of brush-less dc motor applications. t he device includes an on-chip hall voltage generator f or magnetic sensing, a comparator that amplifies th e hall voltage, and a schmitt trigger to provide switching hysteresis for noise rejection, and open collector output. an internal band gap regulator is used to provide temp erature compensated supply voltage for internal cir cuits and allows a wide operating supply range. the device is identical except for magnetic switch points. the d evice includes on a single silicon chip a voltage regulat or, hall-voltage generator, small-signal amplifier, chopper stabilization, schmitt trigger, open-collector outp ut to sink up to 25ma. a south pole of sufficient s trength will turn the output on. the north pole is necessary to turn the output off. an on-board regulator permits opera tion with supply voltages of 3.5v to 20 v. features temperature compensation. wide operating voltage range. open-collector pre-driver. reverse bias protection on power supply pin. 100% at 125 o c hot test ordering information part no. package packing TSH181ct b0g to-92s 1kpcs / bulk bag note: g denote for halogen free product application high temperature fan motor 3 phase bldc motor application fan motor application speed sensing revolution counting absolute maximum rating (ta = 25 o c unless otherwise noted) characteristics limit value unit supply voltage v cc 20 v output voltage v out 30 v reverse voltage v cc/out -20 v magnetic flux density unlimited gauss output current i out 25 ma operating temperature range t opr -40 to +125 o c storage temperature range t stg -55 to +150 o c maximum junction temp t j 150 o c thermal resistance - junction to ambient q ja 206 o c/w thermal resistance - junction to case q jc 148 o c/w package power dissipation p d 606 mw note: do not apply reverse voltage to v cc and v out pin, it may be caused for miss function or damaged device. pin definition : 1. v dd 2. gnd 3. output
TSH181 general purpose hall effect latch 2/7 version: b13 c1 1000pf c2 15pf r1 10k ? block diagram typical application circuit electrical specifications ( dc operating parameters t a =+25 o c,v cc =12v) parameters test conditions min typ max units supply voltage operating 3.5 -- 20 v supply current b< b op -- 4 8 ma output saturation voltage i out = 10ma, b>b op -- -- 700 mv output leakage current i off b TSH181 general purpose hall effect latch 3/7 version: b13 magnetic specifications parameters test conditions min typ max units operate point 5 -- 90 gauss release point -90 -- -5 gauss hysteresis -- 100 -- gauss note: 1g (gauss) = 0.1mt (millitesta) output behavior versus magnetic pole dc operating parameters: t a = -40 to 125 o c, v cc = 3.5 to 20v parameter test condition out north pole b>b op open south pole b TSH181 general purpose hall effect latch 4/7 version: b13 characteristic performance figure 1. supply voltage vs. flux density figure 2. temperature vs. flux density figure 3. supply voltage vs. output voltage figure 4. temperature vs. output voltage figure 5. supply voltage vs. leakage current figure 6. power dissipation vs. temperature
TSH181 general purpose hall effect latch 5/7 version: b13 characteristic performance figure 7. temperature vs. supply current figure 8. temperature vs. power dissipation
TSH181 general purpose hall effect latch 6/7 version: b13 to-92s mechanical drawing unit: millimeters marking diagram 181 = device code y = year code ww = week code (01~52)
TSH181 general purpose hall effect latch 7/7 version: b13 notice specifications of the products displayed herein are subject to change without notice. tsc or anyone on its behalf, assumes no responsibility or liability for any erro rs or inaccuracies. information contained herein is intended to provide a product description only. no license, express or implied, to any intellectual property rights is granted by this document. except as provided in tscs terms and co nditions of sale for such products, tsc assumes no liability wh atsoever, and disclaims any express or implied warr anty, relating to sale and/or use of tsc products includi ng liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, cop yright, or other intellectual property right. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applica tions. customers using or selling these products for use i n such applications do so at their own risk and agr ee to fully indemnify tsc for any damages resulting from such i mproper use or sale.
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