TTP229 Overview
The TTP229 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.
TTP229 Key Features
- Operating voltage：2.4V~5.5V for built-in regulator enable
- Built-in regulator with external enable/disable option
- Stand-by current
- Provides to set 8 direct keys or 16 direct keys by option
- Provides to set 8 separate outputs only for 8 direct input keys mode
- Has two kinds of serial output interface, both can use for 8 and 16 direct input keys mode Include 2-wires serial interf
- 8 separate outputs can select output driving types by option (CMOS/OD/OC with active high/low)
- 2-wires serial interface can select active high or low by option
- Offer multi-key or single-key feature by option
- Provides two kinds of sampling rate that slow sampling rate 8Hz and fast sampling rate 64Hz at sleep mode