Non-Isolated RS-485 to Wi-Fi Bridge with 24 VAC Power Reference Design
TIDA-00485
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Description

The TIDA-00485 TI Design uses Texas Instruments SimpleLink Wi-Fi CC3200 Internet-on-a-chip Wireless MCU module to create a data bridge between an RS-485 network and a Wi-Fi network. An SN65HVD72 transceiver provides the RS-485 Interface with 12 kV of ESD protection, and additional protection is provided on board. The design can be powered with AC or DC power up to 30 V RMS or 48 V peak.

A version of this design with an isolated RS-485 interface is presented in TIDA-00486.

Features
  • Add Wi-Fi® connectivity to an RS-485 network quickly and simply
  • CC3200 Application Processor Provides Adaptability to Customer Communication Protocol
  • Wide Input Voltage Range of 18V to 30V AC, 12V to 48V DC

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC3100  SimpleLink™ 32-bit Arm Cortex-M3 Wi-Fi® wireless network processor  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
CC3100MOD  SimpleLink™ Wi-Fi CERTIFIED™ network processor module for Internet-of-Things with 2 TLS/SSL  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
CC3200  SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 2 TLS/SSL and 256kB RAM  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
CC3200MOD  SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® and Internet-of-Things wireless module  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
LM5160  LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
LM5160A  LM5160A Wide Input 65V, 2A Synchronous Buck / Fly-Buck™ Converter  Offline & isolated DC/DC controllers & converters  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
SN65HVD75  3.3-V half-duplex RS-485 transceiver with IEC ESD, 20 Mbps  Interface  Sample & Buy View Design Kits & Evaluation Modules
SN65HVD78  3.3 V Half-Duplex RS-485, with IEC ESD, 50 Mbps  Interface  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC3100 Download -
Download
CC3100MOD Download -
CC3200 Download -
CC3200MOD Download -
LM5160 Download Download
Download -
LM5160A Download Download
SN65HVD72 Download Download
Download
Download
SN65HVD75 Download
Download
Download
SN65HVD78 Download
Download
Download

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