TTP224N-BSB / 4 key touch button control IC / 4-channel capacitive touch sensor switch chip TTP224 / TTP224N TonTouchTMIC is a design principle using capacitive touch sensing IC, IC built-in voltage regulator circuit section to use the touch sensor, stable induction method can be applied to a variety of electronic products. panel medium can be absolutely complete source material and is designed to replace the traditional mechanical structure of the switching or ordinary buttons and design offers four touch inputs and four direct outputs Features Operating voltage 2.4V ~ 5.5V by an external Option to choose whether to enable the internal regulator circuit functions Operating current @ VDD = 3V with no load: a low-power mode typical 2.5uA typical fast mode 9uA @ VDD = 3V operating voltage: In the fast mode KEY fastest response time of 100ms, the low-power mode 200mS in TTP224 in fast mode KEY fastest response time of 60ms, the low-power mode to 160mS can be sensitive to TTP224N each KEY carried out by an external capacitor adjustment (0 ~ 50pF). Providing LPMB port selection fast mode or low-power mode. provide a direct output mode, trigger mode, open-drain Output, CMOS active-high or active-low output via TOG / AHLB / OD port selection provide no protection diodes, two output ports TPQ0D, to provide active low TPQ2D only MOT1, MOT0 port selection valid key longest output time: Big power 120 seconds / 64 seconds / 16 seconds / Infinity After about 0.5 seconds of system stabilization time, during this period do not touch the Touch PAD, and Touch does not have automatic calibration function, when no button is touched, the system re-calibration period is about 4.0 seconds Application consumer electronics film or replace ordinary buttons and switches, Zarlink Shenzhen Micro Technology Co. Ltd. Taiwan Winton TONTEK full range of touch-sensing IC, the original direct channels, supply stability, to provide technical support + program development, selling models are: TTP222: 1 ~ 8 keys touch IC program, a variety of packages, with high sensitivity, built-in LDO, wide operating voltage of 2.0 ~ 5.5V. TTP223: Speed ??Touch IC solutions, ultra-small package and high sensitivity. TTP224: 1 ~ 4 key touch IC program, a variety of packages, with high sensitivity, built-in LDO, wide operating voltage of 2.4 ~ 5.5V. TTP225: 1 ~ 8 key touch IC program, a variety of packages, with high sensitivity, built-in LDO, wide operating voltage of 2.0 ~ 5.5V, programmable TTP226: 1 ~ 8 key touch IC program, a variety of packages, with high sensitivity, built-in LDO , wide operating voltage of 2.0 ~ 5.5V. TTP229: 1 ~ 16 key touch IC program, a variety of packages, with high sensitivity, built-in LDO, wide operating voltage of 2.0 ~ 5.5V, support IIC / TT interface. TTP250 ~ TTP255: MCU with touch IC, provide personalized touch + custom program development. More integrated circuits and other models resistors and capacitors, inductors and other passive components, welcomed the Advisory!