THVD1450 RS-485 Transceiver

THVD1450 RS-485 Transceiver

Texas Instruments' THVD1450 noise-immune RS-485/RS-422 transceiver is designed to operate in rugged industrial environments. The bus pins of this device 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.

This transceiver operates from a single-supply between 3 V and 5.5 V and features an extended common-mode voltage range which makes it suitable for multi-point applications over long cable runs.

The THVD1450 is available in small VSON and VSSOP packages for space-constrained applications. This device is characterized over ambient free-air temperatures from -40°C to +125°C.

  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3 V to 5.5 V supply voltage
  • Bus I/O ESD protection
    • ±30 kV HBM
    • ±18 kV IEC 61000-4-2 contact discharge
    • ±18 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
  • Motor drives
  • Factory automation and control
  • Grid infrastructure
  • Building automation
  • HVAC systems
  • Video surveillance
  • Process analytics
  • Wireless infrastructure

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