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Home > Embedded ICs > Embedded - Microcontroller Unit (MCU) > THVD2450DR
Texas Instruments

THVD2450DR

THVD2450DR

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THVD2450DR Overview

THVD2410 and THVD2450 are ±70-V fault-protected, half-duplex, RS-422/RS-485 transceiversoperating on a single 3-V to 5.5-V supply. Bus interface pins are protected against overvoltageconditions during all modes of operation ensuring robust communication in rugged industrialenvironments.

These devices feature integrated IEC ESD protection, eliminating the need for externalsystem-level protection components. Extended ±25-V input common-mode range guarantees reliable datacommunication over longer cable run lengths and/or in the presence of large ground loop voltages.Enhanced 250-mV receiver hysteresis ensures high noise rejection. In addition, the receiverfail-safe feature guarantees a logic high when the inputs are open or shorted together.

THVD24x0 devices are available in small VSSOP and VSON packages for space-constrainedapplications. These devices are characterized over ambient free-air temperatures from –40°C to125°C.

Features

  • Meets or exceeds the requirements ofthe TIA/EIA-485A and TIA/EIA-422B standards
  • 3-V to 5.5-V supplyvoltage
  • Differential output exceeds 2.1 V for PROFIBUScompatibility with 5-V supply
  • Bus I/O protection
    • ±70-V DC bus fault
    • ±16-kV HBMESD
    • ±12-kV IEC 61000-4-2 contact discharge
    • ±12-kV IEC61000-4-2 air-gap discharge
    • ±4-kV IEC 61000-4-4 fast transient burst
  • Half-duplex devicesavailable in two speed grades
    • THVD2410: 500 kbps
    • THVD2450: 50 Mbps
  • Extended ambienttemperature range: -40°C to 125°C
  • Extended operationalcommon-mode range: ±25 V
  • Enhanced receiver hysteresisfor noise immunity
  • Low power consumption
    • Low shutdown supply current: < 1 μA
    • Current duringoperation: < 5.6 mA
  • Glitch-free power-up/down forhot plug-in capability
  • Open, short, and idle busfailsafe
  • Thermal shutdown
  • 1/8 unit load (up to 256 busnodes)
  • Small VSON and VSSOP packages to save board space or SOIC for drop-incompatibility

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Specifications

Circuit Diagram

THVD2450DR

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