Capacitive Touch Sensor TTP223

SKU: MD-26908 Categories: , ,

$ 3.20 $ 2.40

Product Description

Features

  • Operating Voltage: 2.0V~5.5V
  • Operating Current VDD=3V, no-load, SLRFTB=1
  • The response time max about 60mS at fast mode, 220mS at low power mode VDD=3V
  • Sensitivity can adjust by the capacitance(0-50pF) outside
  • Have two kinds of sampling length by pad option(SLRFTB pin)
  • Stable touching detection of the human body for replacing traditional direct switch key
  • Provides Fast mode and Low Power mode selection by pad option(LPMB pin)
  • Provides direct mode? toggle mode by pad option(TOG pin)
  • The open-drain mode by bonding option, OPDO pin is an open-drain output, Q pin is CMOS output
  • All output modes can be selected active high or active low by pad option(AHLB pin)
  • Have the maximum on-time 100sec by pad option(MOTB pin)
  • Have external power-on reset pin(RST pin)
  • After power-on have about 0.5sec stable-time, during the time do not touch the keypad, And the function is disabled
  • Auto calibration for the life
  • The re-calibration period is about 4.0sec when the key has not to be touched

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