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

cable.

2.

Features and benefits

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)

Output configurable as push-button, toggle, or pulse

Internal voltage regulator

Available in SOIC8 (other packages available on request for larger quantities)

PCF8883

Capacitive proximity switch with auto-calibration, large

voltage operating range and very low power consumption

Rev. 2 — 8 March 2011

Product data sheet

1.

The definition of the abbreviations and acronyms used in this data sheet can be found in Section 16.