Automotive Capacitive Proximity Kick to Open Detection Reference Design

(ACTIVE) TIDA-00506

Description & Features

Technical Documents

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Key Document

Description

This TI design showcases proximity sensitivity using TI's FDC1004 EVM for an automotive kick to open application within a plastic bumper. This TI design also showcases test results that include exposure to mud and water on the bumper to determine the impact of common environmental factors.

Features
  • Input Offset Capacitance up to 100pF the large offset capacitance capability allows for the use of remote sensors and allows the use of long cables. It also allows tracking and compensating for environmental changes over time, i.e. temperature and humidity.
  • Two channels shield drive up to 400pF the large shield drive can reduce environmental interferences such as EMI, noise and proximity from undesired targets and help focus the sensing direction of a capacitive sensor, thus enhancing its resolution.
  • Effective resolution (noise floor) of 16 bits allowing far object sensing with a small, inexpensive conductive sensor.
  • Four measurement channels multiple channels allows multiple applications where one channel can be used as environmental sensor to track and compensate for environmental (e.g. temperature, humidity) changes.
  • Small 3mmx3mm footprint enableing using the device in space constrained applications.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC1004  4 Channel Capacitance to Digital Converter for Capacitive Sensing (Cap Sensing) Solutions  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
FDC1004 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (2)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 990 04 Mar 2015 6
PDF 252 04 Mar 2015 21
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 258 04 Mar 2015 5
PDF 108 04 Mar 2015 14
PDF 171 04 Mar 2015 14

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