Legacy Nxp Capacitive Touch Sensors - PCA8885TS/Q900/1

  • Legacy Nxp Capacitive Touch Sensors
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• AEC-Q100 compliant for automotive applications
• Dynamic touch and proximity sensor with 8 sensor channels
• Support for matrix arrangement of sensors
• Sensing plates can be connected remotely

  • Model Number: PCA8885TS/Q900/1
  • Data Sheet: Date Sheet File
Quantity:
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Product Specification

1. General description:

    The integrated circuit PCA8885 is a capacitive 8-channel touch and proximity sensor that uses a patented (EDISEN) method to detect a change in capacitance on remote sensing plates. Changes in the static capacitances (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration. Remote sensing plates (for example, conductive foils) can be connected to the IC1 using coaxial cable. The eight input channels operate independently of each other. There is also a built-in option for a matrix arrangement of the sensors: interrupt generation only when two channels are activated simultaneously, suppression of additional channel outputs when two channels are already active.

 

2. Features and benefits:

AEC-Q100 compliant for automotive applications

Dynamic touch and proximity sensor with 8 sensor channels

Support for matrix arrangement of sensors

Sensing plates can be connected remotely

Adjustable response time

Adjustable sensitivity

    *Continuous auto-calibration

    *Digital processing method

*Can cope with up to 6 mm of acrylic glass

Direct and latching switch modes

I2C Fast-mode Plus (Fm+) compatible interface

    *Two I2C-bus addresses

    *Cascading of two ICs possible

    * Interrupt signaling over I2C-bus

Interrupt output

Large voltage operating range (VDD = 2.5 V to 5.5 V)

Sleep mode (IDD < 100 nA)

Low-power battery operation possible (IDD ~ 10μA)

Operating temperature range (Tamb =-40℃ to +85)

 

3. Applications:

Replacing mechanical switches

Hermetically sealed keys on a keyboard

Switches for medical applications

Switches for use in explosive environments

Audio control: on/off, channel, volume

Vandal proof switches

Switches in or under the upholstery, leather, handles, mats, carpets, tiles, and glass

Use of standard metal sanitary parts (for example a tap) as switch

Portable communication and entertainment units

White goods control panel

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