Description
- 💎【TTP223 Digital Capacitive Touch Sensor】
- ⚡【Supply Voltage】:2.5~5.5V DC
- 🥇Support 6 seconds self-lock
- 🥈Support self-calibration
🥉Support module is mounted in the surfaces of non-metallic materials such as plastic, glass, acrylic, you can make the keys hidden in the walls and desks.
- 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 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) Open drain mode by bonding option, OPDO pin is 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 key pad, And the function is disabled
- Auto calibration for life
- Re-calibration period is about 4.0sec, when key has not be touched
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