TIDA-00730

RS-485 IEC ESD Reference Design

TIDA-00730

Design files

Overview

The TIDA-00730 is an reference design examining how to protect an RS-485 bus against leathal transient waveforms such as IEC ESD, IEC EFT, and IEC surge. The reference design shows the level of protection that can be achieved through the implementation of a TVS diode on the bus lines of a standard RS-485 transcever as well as a RS-485 tranceiver with integrated IEC protection.

Features
  • Board Level IEC ESD Evaluation
  • Easy control of transceivers logic I/O pins
  • PAD Site Evaluation Of Multiple TVS Diode Structures
  • Series Pulse Proof Resistor Pads
  • General Purpose Evaluation Module For Half-Duplex RS-485 Transceivers
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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.

TIDUAI4.PDF (2030 K)

Reference design overview and verified performance test data

TIDRHH4.PDF (75 K)

Detailed schematic diagram for design layout and components

TIDRHH5.PDF (44 K)

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

TIDRHH6.ZIP (63 K)

Detailed overview of design layout for component placement

TIDRHH8.ZIP (55 K)

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

TIDCB16.ZIP (297 K)

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

TIDRHH7.PDF (457 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

RS-485 & RS-422 transceivers

SN65HVD3082EHalf-duplex RS-485 transceiver

Data sheet: PDF | HTML
RS-485 & RS-422 transceivers

SN65HVD825V-Supply RS-485 with IEC ESD Protection

Data sheet: PDF | HTML
RS-485 & RS-422 transceivers

THVD15505-V RS-485 transceiver with ±18-kV IEC ESD protection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide IEC ESD RS-485 Bus Protection Design Guide Sep. 01, 2015
Technical article Get Connected: The basics of protecting RS-485 against ESD PDF | HTML Oct. 23, 2015

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