TIDA-00480

Automotive Hall Sensor Rotary Encoder

TIDA-00480

Design files

Overview

This is an incremental rotary encoder that uses contactless magnetic sensing to detect rotational speed and direction.  The two Hall Effect sensors measure the 66-pole ring magnet and output two signals in quadrature.  This automotive-qualified solution is a low-cost and far more reliable alternative to conventional mechanical contact-based encoders, as it uses solid-state sensing that is immune to physical wear, dirt, corrosion, and RF noise.

Features
  • Extremely simple, reliable, and low-cost
  • Greater design flexibility and ESD immunity, over mechanical encoder modules
  • 66-pole magnet provides 132 detections per 360° of rotation (1 per 2.7°)
  • >20kHz Hall Effect sensor bandwidth provides low 15µs latency
  • Digital sensing and digital signaling offer noise immunity
  • Automotive qualified to AEC-Q100
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDRDB4.PDF (151 KB)

Detailed overview of design layout for component placement

TIDRDB5.PDF (399 KB)

Detailed overview of design layout for component placement

TIDRDB3.PDF (210 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRDB7.ZIP (722 KB)

Files used for 3D models or 2D drawings of IC components

TIDC956.ZIP (384 KB)

Design file that contains information on physical board layer of design PCB

TIDRDB6.PDF (919 KB)

PCB layer plot file used for generating PCB design layout

TIDRDB2.PDF (339 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

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Hall-effect latches & switches

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Digital demultiplexers & decoders

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Start development

Software

Support software

TIDC957 — TIDA-00480 Software

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00480 Automotive Hall Sensor Rotary Encoder
Download options

TIDC957 TIDA-00480 Software

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Latest version
Version: 01.00.00.00
Release date: Mar 8, 2015
Hardware development
Reference design
TIDA-00480 Automotive Hall Sensor Rotary Encoder

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc957 or www.ti.com/lit/xx/tidc957/tidc957.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC957. Please update any bookmarks accordingly.

Technical documentation

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View all 4
Type Title Date
Application brief Incremental Rotary Encoders (Rev. B) PDF | HTML Dec 2, 2021
Technical article You can be an electromechanical engineer PDF | HTML Nov 10, 2017
Technical article Measuring wheels in motion PDF | HTML Apr 24, 2015
User guide TIDA-00480 Design Considerations Mar 9, 2015

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