Startseite Schnittstelle RS-485- & RS-422-Transceiver
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RS-485- & RS-422-Transceiver

SN65HVD1786

AKTIV

Fehlergeschützter RS-485, 70 V, mit Gleichtakt-20 bis +25

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Datenblatt

SN65HVD1786

AKTIV
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Produktdetails

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 1 Fault protection (V) -70 to 70 Common-mode range (V) -20 to 25 Number of nodes 256 Features Fault protection Isolated No Supply current (max) (µA) 6000 Rating Catalog Operating temperature range (°C) -40 to 105
Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 1 Fault protection (V) -70 to 70 Common-mode range (V) -20 to 25 Number of nodes 256 Features Fault protection Isolated No Supply current (max) (µA) 6000 Rating Catalog Operating temperature range (°C) -40 to 105
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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
  • 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

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).

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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Technische Dokumentation

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Typ Titel Datum
* Data sheet SN65HVD17xx Fault-Protected RS-485 Transceivers With ExtendedCommon-Mode Range datasheet (Rev. J) PDF | HTML 03 Mär 2023
EVM User's guide RS-485 Half-Duplex EVM User's Guide (Rev. C) PDF | HTML 01 Sep 2021

Design und Entwicklung

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Evaluierungsplatine

RS485-HF-DPLX-EVM — RS-485-Halbduplex-Evaluierungsmodul

The RS-485 half-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data-transmission systems using any of the SN65HVD1x, SN65HVD2x, SN65HVD7x, SN65HVD8x and SN65HVD96 half-duplex transceivers. The EVM board comes without the (...)
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SN65HVD1786 IBIS Model

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SN65HVD1786 PSpice Model

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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 (...)
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Referenzdesigns

TIDA-010035 — Powerline-Kommunikation mit RS-485-Simulation – Referenzdesign

This reference design establishes a simulation model for implementing RS-485 communication over power cabling. This simulation model can be used to assess the feasibility of implementing RS485 communication at a given data rate, cable length, and loading for a specific cable before taking the (...)
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