Single bond touch sensing key design circuit

Published:2011/9/14 20:35:00 Author:nelly | Keyword: single bond, touch, ensing key, design | From:SeekIC

SinglebondtouchsensingchipTTP223canbeappliedfordifferentkindsofeletronic devices. The design issimple,andtheapplicationsareflexible.Thereferencecircuitisintheattachment. Characterdescription: 2.5V~5Vwideworkingvoltagerange,3uA~5uAsuper-lowworkingcurrent SOT23-6package,smallvolume,convenientdesign ThereisonlyaCScapacityinPeripheralequipment.Thecircuitissimple Thesensingdistanceisover5cm,whichcanbeadjustedbychangingtheCScapacityparameter Variouskindsofoutputmethodscanbechosen ItcanpartlyreplacetheQT100,andthecostislow Ithasthepowerfulanti-jammingperformance,anditwillnotbetriggeredwrongly.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Basic_Circuit/Single_bond_touch_sensing_key_design_circuit.html

Print this Page | Comments | Reading(3)