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Product details

Parameters

Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (Nom) (V) 5 Signaling rate (Max) (Mbps) 0.115 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -70 to 70 Common mode range -20 to 25 Number of nodes 256 Features Fault protection Isolated No ICC (Max) (mA) 6 Rating Catalog Operating temperature range (C) -40 to 105 open-in-new Find other RS-485 & RS-422 transceivers

Package | Pins | Size

SOIC (D) 14 52 mm² 8.65 x 6 open-in-new Find other RS-485 & RS-422 transceivers

Features

  • Bus-Pin Fault Protection to:
    • > ±70 V (’HVD1785, 86, 91, 92)
    • > ±30 V (’HVD1787, 93)
  • Common-Mode Voltage Range (–20 V to 25 V)
    More Than Doubles TIA/EIA 485 Requirement
  • Bus I/O Protection
    • ±16 kV JEDEC HBM Protection
  • Reduced Unit Load for Up to 256 Nodes
  • Failsafe Receiver for Open-Circuit, Short-Circuit
    and Idle-Bus Conditions
  • Low Power Consumption
    • Low Standby Supply Current, 1 µA Typical
    • ICC 5 mA Quiescent During Operation
  • Power-Up, Power-Down Glitch-Free Operation
  • APPLICATIONS
    • Designed for RS-485 and RS-422 Networks

All other trademarks are the property of their respective owners

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Description

These devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. They are also robust to ESD events, with high levels of protection to human-body model specifications.

These devices combine a differential driver and a differential receiver, which operate from a single power supply. In the ’HVD1785, ’HVD1786, and ’HVD1787, the driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. In the 'HVD1793, the driver differential outputs and the receiver differential inputs are separate pins, to form a bus port suitable for full-duplex (four-wire bus) communication. These ports feature a wide common-mode voltage range, making the devices suitable for multipoint applications over long cable runs. These devices are characterized from –40°C to 105°C.

For similar features with 3.3-V supply operation, see the SN65HVD1781 (SLLS877).

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Technical documentation

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Type Title Date
* Data sheet SN65HVD17xx Fault-Protected RS-485 Transceivers With Extended Common-Mode Range datasheet (Rev. I) Mar. 20, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

The RS-485 full-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data transmission systems using any of the SN65HVD147x, SN65HVD179x, SN65HVD3x, SN65HVD5x and SN65HVD7x full-duplex transceivers in a 14-pin D package.  The EVM (...)

Features
  • Enables evaluation of RS-485 full-duplex transceivers in standard 14-pin SOIC (D) package
  • Allows evaluation of performance over common-mode voltage
  • Flexible design for convenient evaluation of all standard RS-485 test circuits
  • 50-Ω termination on I/O pins for use with standard 50-Ω test equipment
  • Connect (...)

Design tools & simulation

SIMULATION MODEL Download
SLLC360.ZIP (9 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 14 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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