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Single key series

Capacitive single-button touch detection IC
CT8233

The CT8233L / HX is a single-channel capacitive touch detection chip used to replace traditional mechanical switches.

Product detail

 Working voltage: 2.4~5.5V

 Working current:

Standard sensitivity low power consumption mode: 1.5uA@3.0V No load

High sensitivity fast mode: 6.0uA@3.0V No load

 Complete initialization within 0.5s after power-on is stable

 Environment adaptive function, which can quickly deal with similar application scenarios such as power-on before covering media, touch power-on and so on

 Reliable power-on reset (POR)

 Built-in dithering circuit can effectively prevent misoperation caused by external noise interference

 The maximum output time of the button is about 16s

 High/low level effective output, synchronization/hold mode can be set

 Standard/high sensitivity, low power consumption/fast mode can be selected

 CMOS push-pull output: CT8233LF/LQ/HQ

NMOS open drain output: CT8233LK/LQK/HK

 Packaging form: SOT23-6L