PCF8883

PCF8883 Rev. 01 — 16 October 2009 www.DataSheet4U.com Capacitive proximity switch with auto-calibration, large voltage operating range and very low power consumption Product data sheet 1. General description The integrated circuit PCF8883 is a capacitive 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. 2. Features I I I I I I I I I I I I I I Dynamic proximity switch Digital processing method Adjustable sensitivity, can be made very high Adjustable response time Wide input capacitance range (10 pF to 60 pF) Automatic calibration A large distance (several meters) between the sensing plate and the IC is possible Open-drain output (P-type MOSFET, external load between pin and ground) Designed for battery powered applications (IDD = 3 µA, typical) Output configurable as push-button, toggle, or pulse Wide voltage operating range (VDD = 3 V to 9 V) Large temperature operating range (Tamb = −40 °C to +85 °C) Internal voltage regulator Available in SOIC8 (other packages available on request for larger quantities) 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 16. NXP Semiconductors www.DataSheet4U.c...