Automotive Hall Sensor Rotary Encoder

(ACTIVE) TIDA-00480

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Key Document

Description

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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Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CD4511B  CMOS BCD-to-7-Segment LED Latch Decoder Drivers  Specialty logic  Sample & Buy Not Available
CD4511B-MIL  CMOS BCD-to-7-Segment LED Latch Decoder Drivers  Specialty logic  Not Available Not Available
DRV5013-Q1  Automotive 2.7V to 38V Hall Effect Latch Sensor  Magnetic sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2553-Q1  MSP430™ Ultra-Low-Power Microcontrollers for Automotive Applications  MSP430 ultra-low-power MCUs  Not Available View Design Kits & Evaluation Modules
TPS61097A-33  0.9Vin, 3.3Vout Boost Converter with Bypass Switch - 5nA Shutdown Current  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CD4511B Download -
Download Download
Download Download
Download Download
(WR) | 16 Download -
CD4511B-MIL Download
DRV5013-Q1 Download Download
Download
MSP430G2553-Q1 Download Download
Download Download
TPS61097A-33 Download Download

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Technical Documents

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

Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 59 27 Sep 2017 107
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 206 09 Mar 2015 119
Design files (7)
Title Abstract Type Size (KB) Date Views
ZIP 383 09 Mar 2015 11
ZIP 721 09 Mar 2015 10
PDF 918 09 Mar 2015 11
PDF 399 09 Mar 2015 9
PDF 151 09 Mar 2015 8
PDF 209 09 Mar 2015 11
PDF 338 09 Mar 2015 79
Related Tools & Software

Software (1)



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