TTP229-BSF
Model：TTP229-BSF
Package：SSOP28
16 KEYS OR 8 KEYS TOUCH PAD DETECTOR IC
Operating voltage： 2.4V~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 a 2-wires serial output interface, both can use for 8 and 16 direct input keys mode
ƒ8 separate outputs can select output driving types by option
(CMOS/OD/OC with active high/low)
ƒ2-wires serial interface can select active high or low by option
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
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 a 2-wires serial output interface, both can use for 8 and 16 direct input keys mode
ƒ8 separate outputs can select output driving types by option
(CMOS/OD/OC with active high/low)
ƒ2-wires serial interface can select active high or low by option
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
ƒButton key replacement
Tel：0755-83010901