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Automotive Ultrasonic Kick-to-Open Reference Design
TIDA-01424
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Key Document

Description

This reference design uses ultrasonic 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.  Ultrasonic sensing allows detection of more than one object, and gives a measure of distance to each object. The high-resolution and low power dissipation make this design suitable for automotive hands-free closure systems where gesture detection and low current from the battery are critical.

Features
  • Two ultrasonic sensor channels
  • Operates from a 12V automotive battery
  • Detects kicks for distances up to 50cm
  • Low quiescent current
  • Design has been tested and includes schematics, layout, and test results

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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 (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
PGA460-Q1  Automotive ultrasonic signal processor and transducer driver  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TPS1H100-Q1  40-V, 100-mΩ, 1-ch automotive smart high-side switch with adjustable current limit  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3700-Q1  Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7B69-Q1  Automotive 150-mA, off-battery (40-V), high-PSRR, low-IQ, low-dropout voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
PGA460-Q1 Download
TPS1H100-Q1 Download Download
TPS3700-Q1 Download Download
TPS7B69-Q1 Download
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Technical documentation

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User guides (1)
Title Type Size (KB) Date
PDF 6197 08 Aug 2017
Design files (6)
Title Type Size (KB) Date
ZIP 496 08 Aug 2017
ZIP 599 08 Aug 2017
PDF 517 08 Aug 2017
PDF 104 08 Aug 2017
PDF 66 08 Aug 2017
PDF 2537 08 Aug 2017

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