Overview: 

TTP223 is a single channel capacitive touch sensor chip for touch key control. Single channel design, 1 touch input, 1 touch output. Built-in high-precision voltage regulator module, power-on reset, low-voltage reset, hardware dithering, environment adaptive algorithms and other effective measures to greatly improve its anti-interference performance. Mainly used to replace mechanical switches or buttons. It has the advantages of low power consumption and wide operating voltage range.

Features.

● Wide operating voltage, 2.8V~6V.

● Built-in LDO voltage regulator circuit, unique environment adaptive algorithm.

● Built-in low voltage reset (LVR) function.

● Operating current: VDD=3V, no load, typical 2.5uA in low power mode.

● Maximum touch response time, approximately 64mS from standby mode.

● Adjustment of sensitivity using capacitors (1 to 50pF) connected to the touch panel.

● Various output modes can be configured via pins, providing direct output mode and switching output mode.

● High reliability, built-in de-jittering circuit, effectively preventing malfunctions caused by external noise interference.

● Fast power-on initialisation, less than 0.3 seconds stabilisation time.

● Simple peripheral circuit, low cost, easy to apply.

Scope of Application: ● Consumer products.

● Consumer products.

● Replacement of mechanical switch keys.

● Consumer electronic products such as desk lamps and fans.

● Touch switches: wall switches, power switches, light switches, start switches, and other applications.

● Bluetooth headset, smart lock, smart bracelet.