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RS-485 & RS-422 收發器

SN65HVD888

現行

具 IEC-ESD 保護的匯流排極性修正 RS-485 收發器

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產品規格表

SN65HVD888

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) 0.25 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -18 to 18 Common-mode range (V) -7 to 12 Number of nodes 256 Features Auto polarity, IEC ESD protection Isolated No Supply current (max) (µA) 900 Rating Catalog Operating temperature range (°C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 0.25 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -18 to 18 Common-mode range (V) -7 to 12 Number of nodes 256 Features Auto polarity, IEC ESD protection Isolated No Supply current (max) (µA) 900 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Exceeds Requirements of EIA-485 Standard
  • Bus-Polarity Correction Within 76 ms (tFS)
  • Data Rate: 300 bps to 250 kbps
  • Works With Two Configurations:
    • Failsafe Resistors Only
    • Failsafe and Differential Termination Resistors
  • Up to 256 Nodes on a Bus (1/8 Unit Load)
  • SOIC-8 Package for Backward Compatibility
  • Bus-Pin Protection:
    • ±16 kV HBM protection
    • ±12 kV IEC61000-4-2 Contact Discharge
    • +4 kV IEC61000-4-4 Fast Transient Burst
  • Exceeds Requirements of EIA-485 Standard
  • Bus-Polarity Correction Within 76 ms (tFS)
  • Data Rate: 300 bps to 250 kbps
  • Works With Two Configurations:
    • Failsafe Resistors Only
    • Failsafe and Differential Termination Resistors
  • Up to 256 Nodes on a Bus (1/8 Unit Load)
  • SOIC-8 Package for Backward Compatibility
  • Bus-Pin Protection:
    • ±16 kV HBM protection
    • ±12 kV IEC61000-4-2 Contact Discharge
    • +4 kV IEC61000-4-4 Fast Transient Burst

The SN65HVD888 is a low-power RS-485 transceiver with automatic bus-polarity correction and transient protection. Upon hot plug-in, the device detects and corrects the bus polarity within the first 76 ms of bus idling. On-chip transient protection protects the device against IEC61000 ESD and EFT transients. This device has robust drivers and receivers for demanding industrial applications. The bus pins are robust to electrostatic discharge (ESD) events, with high levels of protection to Human-Body Model (HBM), Air-Gap Discharge, and Contact Discharge specifications.

The device combines a differential driver and a differential receiver, which operate together from a single 5-V power supply. 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. The device features a wide common-mode voltage range making the device suitable for multi-point applications over long cable runs. The SN65HVD888 is available in an SOIC-8 package, and is characterized from –40°C to 125°C.

The SN65HVD888 is a low-power RS-485 transceiver with automatic bus-polarity correction and transient protection. Upon hot plug-in, the device detects and corrects the bus polarity within the first 76 ms of bus idling. On-chip transient protection protects the device against IEC61000 ESD and EFT transients. This device has robust drivers and receivers for demanding industrial applications. The bus pins are robust to electrostatic discharge (ESD) events, with high levels of protection to Human-Body Model (HBM), Air-Gap Discharge, and Contact Discharge specifications.

The device combines a differential driver and a differential receiver, which operate together from a single 5-V power supply. 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. The device features a wide common-mode voltage range making the device suitable for multi-point applications over long cable runs. The SN65HVD888 is available in an SOIC-8 package, and is characterized from –40°C to 125°C.
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類型 標題 日期
* Data sheet SN65HVD888 Bus-Polarity Correcting RS-485 Transceiver With IEC-ESD Protection datasheet (Rev. C) PDF | HTML 2018年 1月 3日
Application note How to Properly Set Up THVD1505 and SN65HVD888 in Applications PDF | HTML 2021年 12月 15日
Technical article How much loading can an auto-polarity RS-485 bus support? PDF | HTML 2018年 5月 24日
Technical article Power a RS-485 transceiver with a high efficiency flyback converter PDF | HTML 2017年 12月 27日
Analog Design Journal Correcting cross-wire faults in modern e-metering networks 2013年 10月 28日

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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 (...)
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SN65HVD888 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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參考設計

TIDA-00263 — 隔離自動極性 RS-485 收發器參考設計

此參考設計展現隔離式 RS-485 匯流排節點，可自動修正因跨線故障所造成的反向匯流排訊號極性。此設計提供暫態防護，可保護訊號路徑免受 IEC 61000 暫態抗擾性標準系列中規定的 ESD、EFT 及突波暫態的影響。隔離式 DC-DC 轉換器運用推挽式轉換器原理，在隔離層中提供電源。
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