The TTP223 is a touch pad detector IC which offers 1 touch key.The touching detection IC is designed for replacing traditional direct button key with diverse pad size.Low power consumption and wide operating voltage are the contact key features for DC or AC application.FeaturesOperating voltage 2.0V~5.5V ƒOperating current @VDD=3V, no load, SLRFTB=1The response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V ƒSensitivity can adjust by the capacitance(0~50pF) outside ƒHave two kinds of sampling length by pad option(SLRFTB pin) ƒStable touching detection of human body for replacing traditional direct switch key ƒProvides Fast mode and Low Power mode selection by pad option(LPMB pin) ƒProvides direct mode?toggle mode by pad option(TOG pin)Open drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output ƒAll output modes can be selected active high or active low by pad option(AHLB pin) ƒHave the maximum on time 100sec by pad option(MOTB pin) ƒHave external power on reset pin(RST pin) ƒAfter power-on have about 0.5sec stable-time, during the time do not touch the key pad, And the function is disabled ƒAuto calibration for lifeRe-calibration period is about 4.0sec, when key has not be touched
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