< img src="https://mc.yandex.ru/watch/95524020" style="position:absolute; left:-9999px;" alt="" />
HT ELECTRONICS Cart Cart ( )
HT ELECTRONICS BOMBOM
All Products

Introduction, characteristics, and applications of Texas Instruments THVD1454 half-duplex RS-485 transceiver

2/27/2024 9:30:00 AM

Abstract: This device is a flexible half-duplex RS-485 transceiver suitable for industrial applications.

Texas Instruments THVD1454 half-duplex RS-485 transceiver

The Texas Instruments THVD1454 Half-Duplex RS-485 Transceiver is a flexible half-duplex RS-485 transceiver suitable for industrial applications. The device features on-chip, 120-ohm termination resistors and driver output slew rate control. Both functions are controlled by pins. This feature allows the device to be used at any node location (end node or intermediate node) in any network, whether slow or fast. End equipment designers can now design universal printed circuit boards (PCBs) and use software to configure the PCB to meet various application needs. This feature saves customers design and qualification time.

The bus pins are not affected by high-level IEC contact discharge ESD events. This feature eliminates the need for additional system-level protection components. The device is powered from a single 3V to 5.5V. Low input leakage and a wide common-mode voltage range on the bus pins make the device suitable for multipoint applications running long cables. The Texas Instruments THVD1454 is available in a space-saving, thermally efficient 10-VSON package (3mm x 3mm). The device is characterized over ambient temperatures from -40°C to 125°C.


characteristic

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

  • 3V to 5.5V supply voltage

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

  • Half duplex rs-422/rs-485

  • Pin controls the terminating resistor between the 120 ohm bus pins on the chip

  • Maximum data rate configurable

    • DSLR=High:500kbps

    • DSLR = Low or Float: 20Mbps

  • Bus I/O protection

    • ±16kV HBM ESD

    • IEC 61000-4-2 Contact discharge

    • ±15kV IEC 61000-4-2 air gap discharge

    • IEC 61000-4-4 Fast Transient Burst

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

  • Extended industrial temperature range -40°C to 125°C

  • Low power consumption

    • Power off current less than 5µA

    • 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 (max. 256 bus nodes)

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


app

  • Factory Automation and Control

  • Building automation

  • Motor driver

  • Power output

  • industrial transportation

  • HVAC system

  • smart meter


Simplify applications


Declaration: This article is copyrighted by the original author. Reposting this article is solely for the purpose of disseminating more information. If there are any inaccuracies in the author's information, please contact us as soon as possible for correction or removal. Thank you for your attention!

Prve：Introduction, characteristics, and applications of Texas Instruments TPSM365R1x synchronous buck converter

Next：Introduction, characteristics, and applications of Texas Instruments IWR6243 monolithic FMCW transceiver