1 key Touch Pad Detector IC The CXTC8922B TonTouchTM is a touch pad detector IC which offers 1 touch key. The device built-in regulator for touch sensor. Stable sensing method can cover diversity cond

   产品概述 返回TOP8c1嘉泰姆

The CXTC8922B TonTouchTM is a touch pad detector IC which offers 1 touch key. The device built-in regulator for touch sensor. Stable sensing method can cover diversity conditions. The touching detection IC is designed for replacing traditional direct button key with diverse pad size. Low power consumption and wide operating voltage are the contact key features for DC or AC application

   产品特点 返回TOP8c1嘉泰姆

z Operating voltage 2.4V ~ 5.5V 8c1嘉泰姆

z Built-in regulator for touch sensor 8c1嘉泰姆

z Built-in low voltage reset (LVR) function 8c1嘉泰姆

z Operating current, @VDD=3V no load At low power mode typical 2.5uA, maximum 5uA 8c1嘉泰姆

z The response time max about 220mS at low power mode @VDD=3V 8c1嘉泰姆

z Sensitivity can adjust by the capacitance（1~50pF）outside 8c1嘉泰姆

z Stable touching detection of human body for replacing traditional direct switch key 8c1嘉泰姆

z Provides Low Power mode 8c1嘉泰姆

z Provides direct output or toggle output selection by pin option (TOG pin) 8c1嘉泰姆

z Q pin is CMOS output can be selected active high or active low by pin option (AHLB pin) 8c1嘉泰姆

z After power-on have about 0.5sec stable-time, during the time do not touch the key pad, and the function is disabled 8c1嘉泰姆

z Auto calibration for life 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 sec8c1嘉泰姆

   应用范围 返回TOP8c1嘉泰姆

z Wide consumer products 8c1嘉泰姆

z Button key replacement8c1嘉泰姆

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