TTP233C - TONTEK

TTP233C 1 key Touch Pad Detector IC

Key-on & timing control TOG AHLB DLYB Pad NO Pad Name Type 1 QO 2 OPDO OD 3 VSS P 4 LPMB I-PH 5 TOG I-PL 6 VDD P 7 AHLB I-PL 8 DLYB I-PH 9 MOTB I-PH 10 MOTA I-PH 11 I I/O Pad Description CMOS output pin Open drain output pin active low(have no Diode protective circuit) Negative power supply, ground Low power mode selection, 1(Default)=>.

Features

for DC or AC application. Characteristic z Operating voltage 2.4V ~ 5.5V z Built-in regulator for touch sensor z Operating current, @VDD=3V no load At low power mode typical 2.5uA, maximum 5uA At fast mode typical 5uA, maximum 10uA z The response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V z Sensitivity can adjust by the capacitance（1~50pF）outside z Stable touching detection of human body for replacing traditional direct switch key z Provides Fast mode and Low Power mode selection by pad option (LPMB pin) z Provides normal mode and delay-off mode selection by pad option (.