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RS-485 & RS-422 收發器

THVD1420

現行

採用小型封裝選項且具 ±12-kV IEC ESD 保護的 3.3-V 至 5-V、12-Mbps、RS-485 收發器

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產品規格表

THVD1420

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) 12 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -16 to 16 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 3000 Rating Catalog Operating temperature range (°C) -40 to 125
Number of receivers 1 Number of transmitters 1 Duplex Half Signaling rate (max) (Mbps) 12 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -16 to 16 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 3000 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-5X3 (DRL) 8 3.36 mm² (2.1 mm × 1.6 mm)
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3-V to 5.5-V Supply voltage
  • Half-duplex RS-422/RS-485
  • Data rates
    • THVD1400: 500 kbps
    • THVD1420: 12 Mbps
  • Bus I/O protection
    • ±16-kV HBM ESD
    • ±12-kV IEC 61000-4-2 Contact discharge
    • ±15-kV IEC 61000-4-2 Air gap discharge
    • ±4-kV IEC 61000-4-4 Fast transient burst
    • ±16-V bus fault protection (absolute max voltage on bus pins)
  • Small, space-saving 8-pin SOT package option (2.1 mm x 1.2 mm)
    • See the layout example for co-layout with standard SOIC-8 package
  • Extended industrial temperature range: -40°C to 125°C
  • Large receiver hysteresis for noise rejection
  • Low power consumption
    • Low standby supply current: < 1 µA
    • Quiescent current during operation: 1.5 mA (typ)
  • Glitch-free power-up/down for hot plug-in capability
  • Open, short, and idle bus failsafe
  • 1/8 Unit load (Up to 256 bus nodes)
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3-V to 5.5-V Supply voltage
  • Half-duplex RS-422/RS-485
  • Data rates
    • THVD1400: 500 kbps
    • THVD1420: 12 Mbps
  • Bus I/O protection
    • ±16-kV HBM ESD
    • ±12-kV IEC 61000-4-2 Contact discharge
    • ±15-kV IEC 61000-4-2 Air gap discharge
    • ±4-kV IEC 61000-4-4 Fast transient burst
    • ±16-V bus fault protection (absolute max voltage on bus pins)
  • Small, space-saving 8-pin SOT package option (2.1 mm x 1.2 mm)
    • See the layout example for co-layout with standard SOIC-8 package
  • Extended industrial temperature range: -40°C to 125°C
  • Large receiver hysteresis for noise rejection
  • Low power consumption
    • Low standby supply current: < 1 µA
    • Quiescent current during operation: 1.5 mA (typ)
  • Glitch-free power-up/down for hot plug-in capability
  • Open, short, and idle bus failsafe
  • 1/8 Unit load (Up to 256 bus nodes)

THVD1400 and THVD1420 are robust half-duplex RS-485 transceivers for industrial applications. The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components.

The devices operate from a single 3 to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make the devices suitable for multi-point applications over long cable runs.

THVD1400 and THVD1420 are available in industry standard, 8-pin SOIC package for drop-in compatibility as well as in the industry-leading, small SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.

THVD1400 and THVD1420 are robust half-duplex RS-485 transceivers for industrial applications. The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components.

The devices operate from a single 3 to 5.5-V supply. The wide common-mode voltage range and low input leakage on bus pins make the devices suitable for multi-point applications over long cable runs.

THVD1400 and THVD1420 are available in industry standard, 8-pin SOIC package for drop-in compatibility as well as in the industry-leading, small SOT package. The devices are characterized for ambient temperatures from –40°C to 125°C.
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THVD1429 現行 具有突波防護功能的 3.3V 至 5V RS-485 收發器 Integrated 2.5-kV IEC 61000-4-5 surge protection and 20-Mbps maximum data rate
THVD2450 現行 具有 IEC ESD 的 ±70-V 故障保護 3.3-V 至 5-V RS-485 收發器 +/-70-V bus fault protection and works with +/-25-V common mode voltage range, and supports maximum 50-Mbps data rate
功能相同，但針腳輸出與所比較的裝置不同。
THVD1454 現行 具整合式 120-Ω 可切換終端的 3-V 至 5.5-V 半雙工 RS-485 收發器 Supports switchable data rate and internal termination
功能相似於所比較的產品。
THVD1426 現行 3.3-V 至 5-V 12-Mbps 半雙工 RS-485 收發器自動方向控制 ±12-kV IEC ESD 保護 Supports auto direction function
THVD1424 現行 具電壓轉換率控制、整合式可切換終端和雙工切換的 RS-485 收發器 Half-duplex, full-duplex switchable, integrated termination, and 1.65-V to 5.5-V flexible IO support

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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 THVD1400, THVD1420 3.3-V to 5-V RS-485 Transceivers in Small Package with ±12-kV IEC ESD Protection datasheet (Rev. B) PDF | HTML 2021/10/25

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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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