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CST223A

    CST223A is a single button touch detection chip, which is equipped with a built-in voltage stabilizing circuit to provide stable voltage for touch sensing circuits. The stable touch detection effect can widely meet the needs of different applications. This touch detection chip is specifically designed to replace traditional buttons, and the size of the touch detection PAD can be designed within a reasonable range according to different sensitivities, with low power consumption and wide working voltage, This is the characteristic of this touch chip in DC or AC applications.
    CST223A Overview:
        CST223A is a single button touch detection chip, which is equipped with a built-in voltage stabilizing circuit to provide stable voltage for touch sensing circuits. The stable touch detection effect can widely meet the needs of different applications. This touch detection chip is specifically designed to replace traditional buttons, and the size of the touch detection PAD can be designed within a reasonable range according to different sensitivities, with low power consumption and wide working voltage, This is the characteristic of this touch chip in DC or AC applications.

    CST223A Features:
    Working voltage 2.3V~5.5V
    The built-in voltage regulator circuit provides stable voltage for the detection circuit to use
    Built in Low Voltage Reset (LVR) function
    Working current 6ua@vdd =3V, no load
    Low power standby current 2ua@vdd =3V, no load
    Flexibly adjustable sensitivity, no external capacitance required, maximum parasitic capacitance value of 30pF
    Touch detection input pins connected in series with a 0-100K resistor can adjust sensitivity
    The output mode has been configured, eliminating the need for external selection resistors
    Optional CMOS output/open drain output, effective for high/low levels
    The touch output pin provides a maximum output time of 16 seconds
    After power on, there is a stable time of about 0.5 seconds
    Automatic calibration function, environmental adaptive calibration function
    DFN-6L, SOT23-6L packaging

    CST223A Application:
    Various consumer products
    Replace button buttons

    CST223ASelection table/ordering information:
    Selection List
    CST223A-KGSAx

    CST223A-KGHAx

    CST223A-CGSBx

    CST223A-CGHBx

    CST223A-KDSAx

    CST223A-KDHA

    CST223A-CDSAx

    CST223A-CDHAx

    CST223A-CDSBx

    CST223A-CDHBx

    Ordering Information List
    CST223A-KGSAx
     
    CST223A-KGHAx
     
    CST223A-CGSBx
     
    CST223A-CGHBx
     
    CST223A-KDSAx
     
    CST223A-KDHA
     
    CST223A-CDSAx
     
    CST223A-CDHAx
     
    CST223A-CDSBx
     
    CST223A-CDHBx

    CST223AChip Block Diagram:
    CST223APin configuration:

    CST223A Application Circuit:
    Please submit your basic information and send an email Sales@ChipSourceTek.com , or call us at 13823761625 (the same number as wechat), and we will contact you as soon as possible!

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