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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 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 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 mm × 6 mm)
  • 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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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 70-V Fault-Protected RS-485 Transceivers with Cable Invert datasheet (Rev. A) 2012/9/28

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開發板

RS485-FL-DPLX-EVM — RS-485 全雙工評估模組

RS-485 全雙工評估模組 (EVM) 可協助設計師評估裝置性能，支援使用 14 接腳 D 封裝之 SN65HVD147x、SN65HVD179x、SN65HVD3x、SN65HVD5x 及 SN65HVD7x 全雙工收發器，進行資料傳輸系統的快速開發與分析。  EVM 出貨時已將 SN65HVD73 裝置焊接至電路板上。

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

RS-485 半雙工評估模組 (EVM) 可協助設計師評估裝置性能，其支援使用 SN65HVD1x、SN65HVD2x、SN65HVD7x、SN65HVD8x 和 SN65HVD96 半雙工收發器之一快速開發與分析資料傳輸系統。EVM 板出貨時並未將 RS-485 裝置焊接至電路板上。使用者可索取樣品或購買任何 TI RS-485 半雙工裝置，以進行評估。如需相容裝置的完整清單，請參閱 EVM 使用指南。
使用指南: PDF | HTML
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模擬型號

SN65HVD1794 IBIS Model

SLLM097.ZIP (27 KB) - IBIS 模型
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