TIDA-00202 Reference Design

Texas Instruments

Interface to a HIPERFACE Position Encoder Reference Design

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.
Applications
  • Motor diagnostics & monitoring
  • Servo drive position feedback
  • Servo drive control module
  • AC drive position feedback
  • Servo drive functional safety module
  • Robot servo drive
Product Categories
  • Interface

Parts

Part Number Name Companion Part
ADS7254 ADS7254 Buy Datasheet
LP2954 LP2954 Buy Datasheet
OPA2365 OPA2365 Buy Datasheet
SN65HVD72 SN65HVD72 Buy Datasheet
THS4531A THS4531A Buy Datasheet
TLV3202 TLV3202 Buy Datasheet
TLV431 TLV431 Buy Datasheet
TPD2E007 TPD2E007 Buy Datasheet
TPS5401 TPS5401 Buy Datasheet
TPS560200 TPS560200 Buy Datasheet

Software

Bill Of Materials

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Schematic

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Test Data

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Other Documents

Title Updated Type Size (KB)
TIDA-00202 Gerber 11 Dec 2015 ZIP 2025
TIDA-00202 CAD Files 11 Dec 2015 ZIP 5817
TIDA-00202 PCB 11 Dec 2015 PDF 4667
TIDA-00202 Assembly Drawing 11 Dec 2015 PDF 356
TIDA-00202 BOM 11 Dec 2015 PDF 38
TIDA-00202 Schematic and Block Diagram 11 Dec 2015 PDF 1279