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Introduction, characteristics, and applications of Texas Instruments THVD1400V half-duplex RS-422/RS-485 transceiver

2/13/2024 9:15:13 AM

Summary: Features 3 to 5.5V bus power and 1.65V to 5.5V low-level logic interface support.

THVD1400V Texas Instruments

The Texas Instruments THVD1400V half-duplex RS-422/RS-485 transceiver features flexible I/O powering and integrated IEC ESD protection, providing 5µA of shutdown supply current. The transceiver includes a slew rate control pin (SLR) that can set the transceiver to a maximum 20Mbps mode or a slew rate limited 500kbps mode. The THVD1400V transceiver has a differential output of over 2.1V, is PROFIBUS compatible with 5V supplies, and supports 1.65V to 5.5V low-level logic interfaces.

The THVD1400V transceiver meets or exceeds the requirements of the TIA/EIA-485A standard. The transceiver operates over the -40°C to 125°C temperature range and is available in a 3mm x 3mm VSON (10-pin) package. THVD1400V transceivers are used in factory automation and control, building automation, motor drives, power transmission, industrial transportation, HVAC systems, smart meters and communications infrastructure.


characteristic

  • Meets or exceeds the requirements of TIA/EIA-485A standards

  • Differential output over 2.1V PROFIBUS compatible with 5V supply

  • 3V to 5.5V RS-485 supply voltage range

  • 1.65V to 5.5V logic signal interface power supply

  • Half duplex rs-422/rs-485

  • Configurable maximum data rate:

    • DSLR = 500kbps (high)

    • SLR = 20Mbps (low or floating)

  • Bus I/O protection:

    • ±16kV HBM ESD

    • ±12kV IEC 61000-4-2 contact discharge

    • ±12kV IEC 61000-4-2 air gap discharge

    • ±4V IEC 61000-4-4 fast transient burst

    • ±16V bus fault protection (bus pin absolute maximum voltage)

  • Low power consumption:

    • 5μA shutdown supply current

    • Quiescent current is less than 3mA during operation

  • Trouble-free power-on/off heating plug-in function

  • Open, short, and idle bus fail-safe

  • 1/8 unit load (up to 256 bus nodes)

  • Small thermally efficient 10-pin VSON package (3mm x 3mm)


app

  • Factory Automation and Control

  • Power output

  • industrial transportation

  • Building automation

  • HVAC system

  • Motor driver

  • smart meter

  • communication infrastructure

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