PCF8883T/1,118

NXP  PCF8883T/1,118  电容式触摸传感器, 3 V, 9 V, SOIC, 8 引脚, -40 °C

The is a Capacitive Touch/Proximity Switch with auto-calibration, large voltage operating range and very low power consumption. The integrated circuit PCF8883 is a capacitive touch and proximity switch that uses a patented EDISEN digital method to detect a change in capacitance on a remote sensing plate. Changes in the static capacitance as opposed to dynamic capacitance changes are automatically compensated using continuous auto-calibration. Remote sensing plates e.g. conductive foil can be connected directly to the IC1 or remotely using a coaxial cable.

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Dynamic proximity switch

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Digital processing method

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Adjustable sensitivity, can be made very high

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Adjustable response time

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Wide input capacitance range 10pF to 60pF

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Large distance several meters between sensing plate and IC is possible

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Open-drain output P-type MOSFET, external load between pin and ground

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Output configurable as push-button, toggle or pulse

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Internal voltage regulator

ESD sensitive device, take proper precaution while handling the device.