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RS-485 & RS-422 收發器

SN65HVD1794

現行

具電纜反向和故障保護功能的 70-V RS-485 收發器

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產品規格表

SN65HVD1794

現行
產品規格表 立即訂購

產品詳細資料

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 0.115 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) 0.115 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
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Bus-Pin Fault Protection to > ±70 V
  • Cable Invert Function Allows Correction for Reversed Bus Pins
  • 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
    • ICC 5 mA Quiescent During Operation
  • Power-Up, Power-Down Glitch-Free Operation
  • Bus-Pin Fault Protection to > ±70 V
  • Cable Invert Function Allows Correction for Reversed Bus Pins
  • 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
    • 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. The driver differential outputs and the receiver differential inputs are connected internally to for a bus port suitable for half-duplex (two-wire bus) communication. A cable invert pin (INV) allows active correction of mis-wires that may occur during installation. Upon detecting communication errors, the user can apply a logic HIGH to the INV pin, effectively inverting the polarity of the differential bus port, thereby correcting for the reversed bus wires.

These devices feature a wide common-mode voltage range, making them suitable for multi-point 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. The driver differential outputs and the receiver differential inputs are connected internally to for a bus port suitable for half-duplex (two-wire bus) communication. A cable invert pin (INV) allows active correction of mis-wires that may occur during installation. Upon detecting communication errors, the user can apply a logic HIGH to the INV pin, effectively inverting the polarity of the differential bus port, thereby correcting for the reversed bus wires.

These devices feature a wide common-mode voltage range, making them suitable for multi-point 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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類型 標題 日期
* Data sheet 70-V Fault-Protected RS-485 Transceivers with Cable Invert datasheet (Rev. A) 2012年 9月 28日
EVM User's guide RS-485 Half-Duplex EVM User's Guide (Rev. C) PDF | HTML 2021年 9月 1日

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RS485-FL-DPLX-EVM — RS-485 全雙工評估模組

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 (...)

使用指南: PDF
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開發板

RS485-HF-DPLX-EVM — RS-485 半雙工評估模組

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 (...)
使用指南: PDF | HTML
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模擬型號

SN65HVD1794 IBIS Model

SLLM097.ZIP (27 KB) - IBIS Model
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
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TINA-TI — 基於 SPICE 的類比模擬程式

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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