Legacy Nxp Capacitive Touch Sensors - PCF8883T/1

  • Legacy Nxp Capacitive Touch Sensors
  • Legacy Nxp Capacitive Touch Sensors
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• 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

  • Model Number: PCF8883T/1
  • Data Sheet: Date Sheet File
Quantity:
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Product Specification

1. General description:

    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.

 

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)

Designed for battery powered applications (IDD = 3μA, 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℃ to +85)

Internal voltage regulator

Available in SOIC8 and wafer level chip-size package (CSP)

 

3. Applications:

Proximity detection

Proximity sensing in

    *Mobile phones

    *Portable entertainment units

Switch for medical applications

Switch for use in explosive environments

Vandal proof switches

Transportation: Switches in or underupholstery, leather, handles, mats, and glass

Buildings: switch in or under carpets, glass, or tiles

Sanitary applications: use of standard metal sanitary parts (e.g. tap) as switch

Hermetically sealed keys on a keyboard


PCF8883T/1 Evaluation Board



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