ماژول TTP223 اورجینال

نقد و بررسی اجمالی

کلید تاچ لمسی خازنی Touching Button Self-Locking/No-Locking Capacitive Switches Single Channel Reconstruction

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GENERAL DESCRIPTION

The TTP223-BA6 TonTouchTM 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

FEATURES

Operating voltage 2.0V~5.5V

Operating current @VDD=3V, no load

At low power mode typical 1.5uA, maximum 3.0uA

The response time max 220mS at low power mode @VDD=3V

Sensitivity can adjust by the capacitance(0~50pF) outside

Stable touching detection of human body for replacing traditional direct switch key

Provides Low Power mode

(Provides direct mode、toggle mode by pad option(TOG pin

Q pin is CMOS output

(All output modes can be selected active high or active low by pad option(AHLB pin

After power-on have about 0.5sec stable-time, during the time do not touch the key pad

And the function is disabled

Auto calibration for life

At low power mode the re-calibration period is about 4.0sec normally

When key detected touch and released touch, the auto re-calibration will be redoing after

about 16sec from releasing key