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THVD1450

ACTIVE

3.3-V to 5-V RS-485 transceiver with ±18-kV IEC ESD protection

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Data sheet

THVD1450

ACTIVE
Data sheet Order now

Product details

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 3.3, 5 Signaling rate (max) (Mbps) 50 IEC 61000-4-2 contact (±V) 18000 Fault protection (V) -18 to 18 Common-mode range (V) -15 to 15 Number of nodes 256 Features Extended common mode, IEC ESD protection, PROFIBUS 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 Supply voltage (nom) (V) 3.3, 5 Signaling rate (max) (Mbps) 50 IEC 61000-4-2 contact (±V) 18000 Fault protection (V) -18 to 18 Common-mode range (V) -15 to 15 Number of nodes 256 Features Extended common mode, IEC ESD protection, PROFIBUS Isolated No Supply current (max) (µA) 3000 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² 4.9 x 6 VSON (DRB) 8 9 mm² 3 x 3 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
  • 3 V to 5.5 V Supply Voltage
  • Differential Output Exceeds 2.1 V for PROFIBUS Compatibility with 5-V Supply
  • Bus I/O ESD Protection
    • ±30 kV HBM
    • ±18 kV IEC 61000-4-2 Contact Discharge
    • ±25 kV IEC 61000-4-2 Air-Gap Discharge
    • ±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Operational Common-mode
    Range: ±15 V
  • Low EMI 500 kbps and 50 Mbps Data Rates
  • Large Receiver Hysteresis for Noise Rejection
  • Low Power Consumption
    • Standby Supply Current: < 1 µA
    • Current During Operation: < 3 mA
  • Extended Ambient Temperature
    Range: –40°C to 125°C
  • 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)
  • Small-Size VSON and VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility
  • Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
  • 3 V to 5.5 V Supply Voltage
  • Differential Output Exceeds 2.1 V for PROFIBUS Compatibility with 5-V Supply
  • Bus I/O ESD Protection
    • ±30 kV HBM
    • ±18 kV IEC 61000-4-2 Contact Discharge
    • ±25 kV IEC 61000-4-2 Air-Gap Discharge
    • ±4 kV IEC 61000-4-4 Fast Transient Burst
  • Extended Operational Common-mode
    Range: ±15 V
  • Low EMI 500 kbps and 50 Mbps Data Rates
  • Large Receiver Hysteresis for Noise Rejection
  • Low Power Consumption
    • Standby Supply Current: < 1 µA
    • Current During Operation: < 3 mA
  • Extended Ambient Temperature
    Range: –40°C to 125°C
  • 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)
  • Small-Size VSON and VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility

THVD14xx is a family of noise-immune RS-485/RS- 422 transceivers designed to operate in rugged industrial environments. The bus pins of these devices are robust to high levels of IEC electrical fast transients (EFT) and IEC electrostatic discharge (ESD) events, eliminating the need for additional system level protection components.

Each of these devices operates from a single supply between 3 V and 5.5 V. The devices in this family feature an extended common-mode voltage range which makes them suitable for multi-point applications over long cable runs.

THVD14xx family of devices is available in small VSON and VSSOP packages for space constrained applications. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.

THVD14xx is a family of noise-immune RS-485/RS- 422 transceivers designed to operate in rugged industrial environments. The bus pins of these devices are robust to high levels of IEC electrical fast transients (EFT) and IEC electrostatic discharge (ESD) events, eliminating the need for additional system level protection components.

Each of these devices operates from a single supply between 3 V and 5.5 V. The devices in this family feature an extended common-mode voltage range which makes them suitable for multi-point applications over long cable runs.

THVD14xx family of devices is available in small VSON and VSSOP packages for space constrained applications. These devices are characterized over ambient free-air temperatures from –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet THVD14xx 3.3-V to 5-V RS-485 Transceivers with ±18-kV IEC ESD Protection datasheet (Rev. E) PDF | HTML 02 May 2019
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 25 Mar 2020
E-book E-book: An engineer’s guide to industrial robot designs 12 Feb 2020
Technical article Frequently asked questions and answers for RS-485 transceivers PDF | HTML 09 Apr 2019
Technical article Can your RS-485 communication survive the great outdoors? PDF | HTML 29 Mar 2019
Application note Signal Integrity versus Data Rate and Cable Length for RS-485 Transceivers 05 Dec 2018
Technical article What is an EFT? Part 2 PDF | HTML 17 Jul 2018
Technical article What is an EFT? PDF | HTML 30 Oct 2017

Design & development

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Evaluation board

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User guide: PDF | HTML
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Simulation model

THVD1450 IBIS Model

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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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TINA-TI — SPICE-based analog simulation program

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Reference designs

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TIDA-010026 — Robust interface reference design for EnDat2.2 absolute encoders

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Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSON (DRB) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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