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TTP232-CA6 Datasheet, PDF (1/8 Pages) Tontek Design Technology – 2 keys Touch Pad Detector IC
TTP232-CA6
2 keys Touch Pad Detector IC
Outline
z The TTP232-CA6 TonTouchTM IC is capacitive sensing design specifically for touch pad
controls. The device built in regulator for touch sensor. Stable sensing method can cover
diversity conditions. Human interfaces control panel links through non-conductive dielectric
material. The main application is focused at replacing of the mechanical switch or button. The
ASSP can independently handle the 2 touch pads with 2 direct output pins
Characteristic
z Operating voltage 2.4V ~ 5.5V
z Built-in regulator for touch sensor
z Operating current, @VDD=3V no load
z At stand-by typical 2.5uA
z The maximum touch response time about 220mS from stand-by state @VDD=3V
z Sensitivity can adjust by the capacitance(1~50pF)outside for each touch pad
z Output mode fix direct mode and active low mode
z Have the maximum on time 16sec
z Fix multi-key feature
z After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and
the function is disabled
z Auto calibration for life
z The re-calibration period is about 1 sec within 8 sec after power-on. When key has been
touched within 8 sec or key has not been touched more than 8 sec after power-on, then the
re-calibration period change to 4 sec
Applications
z Wide consumer products
z Button key replacement
2014/11/07
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Version:1.0