NXP capacitive proximity switches PCx8885 Dynamic touch and proximity switches with eight sensor channels DATA SHEET
Both switches are well suited to a wide range of applications, including man-to-machine interfaces and hermetically sealed units. They deliver reliable performance in harsh environments and can be used for system wake-up and activation. They also support use with single buttons, slider wheels, and key matrixes. The PCA8885TS is an AEC-Q100 qualified touch switch optimized for use in automotive applications.
Both versions interface to the system controller via an I2C-bus operating at up to 1 MHz (Fm+), and generate an interrupt whenever a touch has occurred. Onboard sensor pads or remote sensing plates, connected via coaxial cables, can be used for touch or proximity sensing.
The eight input channels operate independently of each other. There is also a built-in option for a matrix arrangement. With this arrangement, an interrupt is only generated when two channels are activated simultaneously. The configuration suppresses additional channel outputs when two channels are already active.
Both capacitive sensor circuits make it straightforward to implement a touch display and to add significant improvements to the user interface. A passive display can be integrated with touch capabilities in three ways:
(1) add-on integration, where touch pads reside on an extra touch foil or glass, (2) on-cell integration, where touch pads are deposited in a separate layer between the front glass and the top polarizer, and (3) in-cell integration, where touch pads are placed on the same layer as the display segments, surrounding the segment electrodes.
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PCx8885 、 PCA8885TS 、 PCF8885TS 、 OM11057 、 OM11057A 、 OM11058 、 OM11056 、 PCA8886TS 、 PCF8883T 、 PCF8883CX8 、 OM11052 、 OM11055 |
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[ White goods ][ washing machines ][ water heaters ][ Multimedia units ][ TVs ][ audio equipment ][ Self-care medical devices ][ Gaming ][ toys ][ Industrial equipment ][ Home automation ][ Automotive ][ climate control ][ HVAC ][ center stack ][ car entertainment unit ][ mirror control ] |
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Datasheet |
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Please see the document for details |
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Industrial 、 Automotive |
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AEC-Q100 |
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TSSOP28;TSSOP16;SO8;WLCSP |
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English Chinese Chinese and English Japanese |
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April 2014 |
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9397 750 17551 |
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1.2 MB |
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