TTP229-LSF

Model:TTP229-LSF

Package:SSOP28

 capacitive sensing design specifically for touch pad controls.

Operating voltage2.4V~5.5V
ƒBuilt-in regulator
ƒStand-by current At 3V, and sleep mode slow sampling rate 8Hz => Typical 2.5uA for 16 input keys => Typical 2.0uA for 8 input keys
ƒProvides to set 8 direct keys or 16 direct keys by option
ƒProvides to set 8 separate outputs only for 8 direct input keys mode
ƒHas I2C-bus slave interface, both can use for 8 and 16 direct input keys mode TTP229-LSF Slave Device Identifier and Address => [1010 111R]
ƒ8 separate outputs can select output driving types by option (CMOS/OD/OC with active high/low)
ƒOffer multi-key or single-key feature by option
ƒProvides two kinds of sampling rate that slow sampling rate 8Hz and fast sampling rate 64Hz at sleep mode
ƒHave the maximum key-on time about 80sec by pin option
ƒSensitivity can adjust by the capacitance(1~50pF) outside
ƒAfter power-on have about 0.5sec stable-time, During the time do not touch the key pad, and all functions are disabled
ƒAuto calibration for environment changing And the re-calibration period is about 4.0sec, when all keys are not activated for fixed time


Wide consumer products
ƒButton key replacement

Tel:0755-83010901