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reference designLP5907 | Demoboard TIDA-00314

Texas Instruments LP5907 | Demoboard TIDA-00314

Touch on Metal Buttons With Integrated Haptic Feedback Reference Design

Overview

TopologyBoost Converter
Input voltage5 V
IC revisionE1

Description

This TI Design uses Texas Instruments' inductance-to-digital converter technology to provide a high-precision method to sense button presses on a metal surface and TI's Haptic Drivers provide high quality haptics feedback to the user. TIDA-00314 demonstrates techniques for system design, environmental compensation, and electromagnetic interference protection.

Watch a TIDA-00314 Overview video on the Touch on Metal Buttons With Integrated Haptic Feedback NOW.

Features

  • Replaces Mechanical Buttons With High-Resolution Inductive-Sensing Based Touch On Metal Detection
  • Customizable Haptic Feedback and Waveforms Provide High Quality User Experience
  • Programmable Button Sensitivity (from Light Touch to Hard Press)
  • One Continuous Sheet of Metal Sealed and Grounded Against Electromagnetic Interference (EMI), Water, Oil, Dirt, and Other Contaminants
  • Works With Gloves, Underwater (if Sealed), and in Harsh Environments
  • Can Be Used for Pressure and Multi-Step Button Press Sequences
  • Three Button Options Implemented:
  • 20-mm Button
  • 3 x 10 mm (Two Buttons)
  • 3-mm Button
  • Alternative Button Configurations Can Be Implemented With Different Mechanical Designs

Typical applications

  • Mechanical Button Replacement
  • Mobile Device Interfaces
  • Building Automation
  • Electronic Point of Sale
  • Industrial and Automotive Interfaces
  • Appliance Interfaces

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Application
Interface Type
Variant
Gender
Pins
Mount
PCB Thickness(mm)
IR(A)
Working Voltage(V (AC))
Packaging
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
SamplesAvailability & Sample
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651305142821
SPECWR-USB Mini/Micro Connectors, Mini USB 2.0, Type AB
Simu­lation–
Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-USB Mini/Micro Connectors
ApplicationMini USB 2.0 
Interface TypeType AB 
Variantwith Pads 
GenderReceptacle 
Pins5 
MountSMT 
PCB Thickness1.6 mm
Rated Current1 A
Working Voltage30 V (AC)
PackagingTape and Reel 
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TypeHorizontal 
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74279266
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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MountSMT 
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Rated Current0.2 A
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Impedance @ 100 MHz1000 Ω
Maximum Impedance1350 Ω
Maximum Impedance140 MHz 
Rated Current 2650 mA
DC Resistance0.6 Ω
TypeWide Band 
–Check availability