TTP226 - TONTEK

TTP226 8 KEYS TOUCH PAD DETECTOR IC

The TTP222 is a touch pad detector IC which offers 8 touch keys. The touching detection IC is designed for replacing traditional direct button key with fixed pad size. Low power consumption and wide operating voltage are the contact key features for DC or AC application. FEATURES ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Operating voltage 2.0V~5.5V Operating current typical 10.

Features

for DC or AC application. FEATURES ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Operating voltage 2.0V~5.5V Operating current typical 100uA, max 160uA at VDD=3V The output refresh rate about 55Hz at VDD=3V 64 steps sensitivity selectable (SLSE0~5 pin option) Another have offer 2 kinds of base-step (OPST pin option) Stable touching detection of human body for replacing traditional direct switch key Provides direct mode、matrix mode and serial mode selected by pad option Maximum 8 input pads and 8 outputs for direct mode; Maximum 8 input pads for serial interface mode; Maximum 8 input pads provide fixed 2
*4 and 3
*3 mat.