PCA8886

PCA8886 Dual channel capacitive proximity switch with auto-calibration and large voltage operating range Rev. 3 — 14 March 2014 Product data sheet 1. General description The PCA8886 is a low power dual channel capacitive proximity switch that uses a patented (EDISEN) digital method to detect a change in capacitance on remote sensing plates. Changes in the static capacitance (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration. Remote sensing plates (for example, 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  Automatic calibration  Adjustable sensitivity, can be made very high  Adjustable response time  Wide input capacitance range (10 pF to 60 pF)  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  Wide voltage operating range (VDD = 3 V to 9 V)  Designed for battery powered applications (IDD = 6 A, typical)  Large temperature operating range (Tamb = 40 C to +85 C)  AEC-Q100 compliant for automotive applications  Available in TSSOP16 3. Applications  Proximity detection  Proximity sensing in  Door locks and grips  Portable entertainment units  Computing tablets  Switch for medical applications  Dashboard: switch to to...