Interface to a HIPERFACE Position Encoder Reference Design

(ACTIVE) TIDA-00202

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Key Document

Description

The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal channel, two options are provided to offer flexibility for connection to processors with and without embedded ADC or redundancy by using both options simultaneously. The first option features a fully differential dual 12-bit ADC with SPI output, the second option features a dual differential input with single-ended analog output (0-3.3V). The design features an industrial compliant 24V input with wide range from 16V to 36V. The power supply for the encoder can be configured from 7 to 12V (default 11V) and offers short-circuit protection. A 3.3V I/O connector with analog and logic signals provides an easy interface to a host processor with HIPERFACE master IP core. For quick evaluation an example firmware is available for a C2000™ Piccolo MCU to calculate the absolute angle position and display it through virtual COM port.

Features
  • EMC Compliant Interface to HIPERFACE Position Encoders with Digital Bidirectional Parameter Channel up to 38400 Baud and Analog Sin/Cos Channel with at least 150kHz Bandwidth.
  • 3.3V Supply Half-Duplex RS485 Transceiver with 12kV IEC-ESD and 4kV IEC-EFT.
  • Dual Signal Path Option for Sine and Cosine Signals with either Dual 12-bit ADC with SPI Output or Dual Analog Output (0-3.3V) to Offer Flexibility for Connection to MCU with and without Embedded ADC.
  • Host Processor Interface (3.3V I/O) for Easy Connection to MCU like C2000™ for the HIPERFACE Master.
  • Example Firmware on C2000™ Piccolo MCU to Calculate and Display the Interpolated Absolute Angle from HIPERFACE Position Encoders.
  • Designed to Meet EMC Immunity for ESD, Fast Transient Burst, and Surge with Levels according to IEC61800-3.

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Bill of Materials (BOM)

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TI Devices (12)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS7254  SAR ADC, Dual, 1 MSPS, 12 Bit, Simultaneous Sampling  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
LP2954  5V and Adjustable Micropower LDOs  Power management  Sample & Buy Not Available
OPA2365  2.2V, 50MHz, Low-Noise Single-Supply Rail-to-Rail Operational Amplifiers  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN65HVD72  3.3 V Half-Duplex RS-485 with IEC ESD, 250 kbps   Interface  Sample & Buy View Design Kits & Evaluation Modules
THS4531A  Ultra Low Power, RRO, Fully-Differential Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV3202  Dual, 40ns, microPower, Rail-to-Rail input Comparator with Push-pull outputs  Amplifiers  Sample & Buy Not Available
TLV431  1.5% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available
TPD2E007  2-Channel ESD Protection Array for AC Signal Data Interface  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS5401  3.5V to 42V Input, 0.5 A Step Down Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS560200  17V Input, 500mA Synchronous Step-Down Regulator in SOT-23 with Advanced Eco-Mode™  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS717  150mA, High PSRR, Low Quiescent Current, Low Noise LDO  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS799  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS7254 Download Download
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LP2954 Download Download
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OPA2365 Download Download
SN65HVD72 Download Download
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THS4531A Download
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TLV3202 Download
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TLV431 Download Download
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TPD2E007 Download -
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TPS5401 Download -
TPS560200 Download Download
TPS717 Download Download
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TPS799 Download

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Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2851 03 Mar 2016 40
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 2025 11 Dec 2015 10
ZIP 5817 11 Dec 2015 6
PDF 4667 11 Dec 2015 3
PDF 356 11 Dec 2015 5
PDF 38 11 Dec 2015 6
PDF 1279 11 Dec 2015 39
Related Tools & Software

Reference Designs  ( 3 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
InstaSPIN-MOTION (and InstaSPIN-FOC) enabled C2000 Piccolo LaunchPad  LAUNCHXL-F28069M  Evaluation Modules & Boards 

Software (1)


Models (1)

Title Category Type Size (KB) Date Views
TIDA-00202 Simulation TINA-TI Reference Design ZIP 271 KB 16 Aug 2018

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