Inicio Interfaz Transceptores RS-485 y RS-422

THVD1439V

ACTIVO

Transceptor RS-485 de 3.3 V a 5 V y 250 Kbps con protección integrada contra sobretensiones IEC de 4

Detalles del producto

Number of receivers 1 Number of transmitters 1 Duplex Half Logic voltage (min) (V) 1.65 Signaling rate (max) (Mbps) 0.25 IEC 61000-4-2 contact (±V) 15000 Fault protection (V) -15 to 15 Common-mode range (V) -12 to 12 Number of nodes 256 Features 1.65-V I/O supply, Extended common mode, IEC ESD protection, Surge protection Isolated No Supply current (max) (µA) 5000 Rating Catalog Operating temperature range (°C) -40 to 125
Number of receivers 1 Number of transmitters 1 Duplex Half Logic voltage (min) (V) 1.65 Signaling rate (max) (Mbps) 0.25 IEC 61000-4-2 contact (±V) 15000 Fault protection (V) -15 to 15 Common-mode range (V) -12 to 12 Number of nodes 256 Features 1.65-V I/O supply, Extended common mode, IEC ESD protection, Surge protection Isolated No Supply current (max) (µA) 5000 Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3-V to 5.5-V Supply Voltage
  • VIO Support from 1.65-V to VCC supply level (THVD1439V, THVD1449V)
  • Bus I/O protection
    • ± 4-kV IEC 61000-4-5 1.2/50-µs surge
    • ± 15-kV IEC 61000-4-2 Contact discharge
    • ± 15-kV IEC 61000-4-2 Air-gap discharge
    • ± 4-kV IEC 61000-4-4 Electrical fast transient
    • ± 15-kV HBM ESD
    • ± 15-V DC bus fault
  • Available in two speed grades
    • THVD1439, THVD1439V: 250 kbps
    • THVD1449, THVD1449V: 12 Mbps
  • Extended ambient temperature range: -40°C to 125°C
  • Extended operational common-mode range: ± 12 V
  • Large receiver hysteresis for noise rejection
  • Low Power Consumption
    • Standby supply current: < 3 µA
    • Current during operation: < 5 mA
  • 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)
  • Industry standard 8-pin SOIC for drop-in compatibility
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • 3-V to 5.5-V Supply Voltage
  • VIO Support from 1.65-V to VCC supply level (THVD1439V, THVD1449V)
  • Bus I/O protection
    • ± 4-kV IEC 61000-4-5 1.2/50-µs surge
    • ± 15-kV IEC 61000-4-2 Contact discharge
    • ± 15-kV IEC 61000-4-2 Air-gap discharge
    • ± 4-kV IEC 61000-4-4 Electrical fast transient
    • ± 15-kV HBM ESD
    • ± 15-V DC bus fault
  • Available in two speed grades
    • THVD1439, THVD1439V: 250 kbps
    • THVD1449, THVD1449V: 12 Mbps
  • Extended ambient temperature range: -40°C to 125°C
  • Extended operational common-mode range: ± 12 V
  • Large receiver hysteresis for noise rejection
  • Low Power Consumption
    • Standby supply current: < 3 µA
    • Current during operation: < 5 mA
  • 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)
  • Industry standard 8-pin SOIC for drop-in compatibility

THVD14x9(V) devices are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature increases the reliability by providing better immunity to noise transients coupled to the data cable which eliminates the need for external protection components.

THVD1439 and THVD1449 operate from a single 3.3-V or 5-V supply. The THVD1439V and THVD1449V devices support an additional VIO supply to operate the IOs from as low as 1.65 V supply level. The devices in this family feature a wide common-mode voltage range making them suitable for multi-point applications over long cable runs.

THVD14x9(V) devices are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature increases the reliability by providing better immunity to noise transients coupled to the data cable which eliminates the need for external protection components.

THVD1439 and THVD1449 operate from a single 3.3-V or 5-V supply. The THVD1439V and THVD1449V devices support an additional VIO supply to operate the IOs from as low as 1.65 V supply level. The devices in this family feature a wide common-mode voltage range making them suitable for multi-point applications over long cable runs.

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THVD1449V ACTIVO Transceptor RS-485 de 12 Mbps con protección integrada contra sobretensiones IEC de 4 kV y soporte d Supports higher data rate at 12 Mbps (max)
Funcionalidad similar a la del dispositivo comparado
THVD1439 ACTIVO Transceptor RS-485 de 3.3 V a 5 V y 250 Kbps con protección integrada contra sobretensiones IEC de 4 Similar performance without 1.65-V to 5.5-V IO supply support
THVD1449 ACTIVO Transceptor RS-485 de 3.3 V a 5 V y 12 Mbps con protección integrada contra sobretensiones IEC de 4 Supports 12-Mbps data rate with similar performance without 1.65-V to 5.5-V IO supply support

Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos THVD14x9x 3-V to 5.5-V RS-485 Transceivers With 4-kV Surge Protection and 1.8-V VIO Capability datasheet (Rev. B) PDF | HTML 28/09/2021

Diseño y desarrollo

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Placa de evaluación

RS485-HF-DPLX-EVM — Módulo de evaluación RS-485 semidúplex

El módulo de evaluación (EVM) semidúplex RS-485 ayuda a los diseñadores a evaluar el rendimiento del dispositivo, ya que admite un rápido desarrollo y análisis de sistemas de transmisión de datos mediante cualquiera de los transceptores semidúplex SN65HVD1x, SN65HVD2x, SN65HVD7x, SN65HVD8x y (...)
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