Automotive Capacitive Kick-to-Open Reference Design TIDA-01409 (ACTIVE)

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Key Document

Description

This reference design uses capacitive sensing to detect a kicking motion indicating the user's desire to activate a power lift-gate, power trunk, or power sliding door on an automobile.  Capacitive sensing allows flexible sensor placement and a large kick-sensitive zone. The high-resolution and low power dissipation make this design applicable to automotive hands-free closure systems where gesture detection and low current from the battery are critical.

Features
  • Two high-resolution capacitive sensors
  • Operates from 12V automotive battery
  • Detects kicks for distances up to 50cm
  • Low quiescent current
  • Simple microcontroller interface
  • This reference design is tested and includes hardware, test results, and a getting started guide

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
FDC2212-Q1  2-channel, Noise-immune, AEC-Q100 qualified, 28-bit Capacitive Sensing Solution  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G04-Q1  Automotive Catalog Single Inverter  Buffer/driver  Sample & Buy Not Available
TPS7B69-Q1  Automotive high-voltage ultra-low-IQ low-dropout (LDO) regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
FDC2212-Q1 Download Download
SN74LVC1G04-Q1 Download Download
Download Download
TPS7B69-Q1 Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3881 09 Aug 2017
Design files (6)
Title Type Size (KB) Date
ZIP 562 09 Aug 2017
ZIP 682 09 Aug 2017
PDF 485 09 Aug 2017
PDF 101 09 Aug 2017
PDF 26 09 Aug 2017
PDF 2226 09 Aug 2017

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