TTP239-BSF

TTP239-BSF 8 keys Touch Pad Detector IC Outline z The TTP239-BSF 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 8 touch pads with 8 direct output pins. Characteristic z Operating voltage 2.4V ~ 5.5V z Built-in regulator for touch sensor z Built-in low voltage reset(LVR) function z Operating current, @VDD=3V no load At low power mode typical 5.0uA, At fast mode typical 30uA z @VDD=3V operating voltage : The response time about 160mS at low power mode, 60mS at fast mode z Sensitivity can adjust by the capacitance（1~50pF）outside for each touch pad z Provides Fast mode and Low Power mode selection by pad option (LPM pin) z Provides 8 direct outputs for 8 d...