Inicio Interfaz Transceptores RS-485 y RS-422
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Transceptores RS-485 y RS-422
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THVD9491-SP

PRESENTACIÓN PRELIMINAR

Trans. RS-485, 3 V a 5.5 V, tolerante a rad. y p/uso espacial c/suministro de I/O flexible y ESD IEC

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THVD9491-SP

PRESENTACIÓN PRELIMINAR
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Detalles del producto

Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (nom) (V) 3.3, 5 Signaling rate (max) (Mbps) 20, 50 IEC 61000-4-2 contact (±V) 8000 Fault protection (V) -40 to 40 Common-mode range (V) -12 to 12 Number of nodes 256 Features 1.65-V I/O supply, Fault protection, IEC ESD protection, PROFIBUS Isolated No Supply current (max) (µA) 72000 Rating Catalog Operating temperature range (°C) -55 to 125
Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (nom) (V) 3.3, 5 Signaling rate (max) (Mbps) 20, 50 IEC 61000-4-2 contact (±V) 8000 Fault protection (V) -40 to 40 Common-mode range (V) -12 to 12 Number of nodes 256 Features 1.65-V I/O supply, Fault protection, IEC ESD protection, PROFIBUS Isolated No Supply current (max) (µA) 72000 Rating Catalog Operating temperature range (°C) -55 to 125
SOIC (D) 14 51.9 mm² 8.65 x 6
  • Meets or exceeds the requirements of the TIA/EIA-485A and TIA/EIA-422B standards
  • 3V to 5.5V supply voltage
  • Differential output exceeds 2.1V for PROFIBUS compatibility with 5V supply
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) up to total ionizing dose (TID) of 100krad (Si)
  • Single-event effects (SEE) characterized
    • Single event latch-up (SEL) immune to linear energy transfer (LET) = 75MeV⋅cm2 /mg at 125°C
  • SMD# 5962R2522201PXE
  • Space grade plastic (SP)
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Gold bond wire
    • NiPdAu lead finish
    • Military temp range (-55°C to 125°C)
    • Extended product life cycle
    • Product traceability
    • Meets the NASA ASTM E595 outgassing specification
  • 1.65V to 5.5V Supply for data and enable signals
  • SLR Pin Selectable Data Rates:
    • 20Mbps and 50Mbps
  • Bus I/O protection
    • ±40V DC bus fault
    • ±16kV HBM ESD
    • ±12kV IEC 61000-4-2 contact discharge
    • ±12kV IEC 61000-4-2 air-gap discharge
    • ±4kV IEC 61000-4-4 fast transient burst
  • Glitch-free power-up and down for hot plug-in capability
  • Open, short, and idle bus failsafe
  • Thermal shutdown
  • 1/8 unit load (up to 256 bus nodes)
  • 14-pin SOIC package for drop-in compatibility
  • Meets or exceeds the requirements of the TIA/EIA-485A and TIA/EIA-422B standards
  • 3V to 5.5V supply voltage
  • Differential output exceeds 2.1V for PROFIBUS compatibility with 5V supply
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) up to total ionizing dose (TID) of 100krad (Si)
  • Single-event effects (SEE) characterized
    • Single event latch-up (SEL) immune to linear energy transfer (LET) = 75MeV⋅cm2 /mg at 125°C
  • SMD# 5962R2522201PXE
  • Space grade plastic (SP)
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Gold bond wire
    • NiPdAu lead finish
    • Military temp range (-55°C to 125°C)
    • Extended product life cycle
    • Product traceability
    • Meets the NASA ASTM E595 outgassing specification
  • 1.65V to 5.5V Supply for data and enable signals
  • SLR Pin Selectable Data Rates:
    • 20Mbps and 50Mbps
  • Bus I/O protection
    • ±40V DC bus fault
    • ±16kV HBM ESD
    • ±12kV IEC 61000-4-2 contact discharge
    • ±12kV IEC 61000-4-2 air-gap discharge
    • ±4kV IEC 61000-4-4 fast transient burst
  • Glitch-free power-up and down for hot plug-in capability
  • Open, short, and idle bus failsafe
  • Thermal shutdown
  • 1/8 unit load (up to 256 bus nodes)
  • 14-pin SOIC package for drop-in compatibility

THVD9491-SP is a ±40V fault-protected, half and full-duplex RS-422/RS-485 transceivers using a 1.65V to 5.5V logic supply for data and enable logic signals, and a 3V to 5.5V bus side supply. The devices have slew rate select feature that enables the devices to be used at two maximum speeds based on the SLR pin setting

These devices feature integrated IEC ESD protection, eliminating the need for external system-level protection components. Symmetric ±12V input common-mode range makes reliable data communication over longer cable run lengths and/or in the presence of large ground loop voltages. Enhanced 250mV receiver hysteresis provides high noise rejection. In addition, the receiver fail-safe feature makes sure of a logic high when the inputs are open or shorted together.

The half-duplex device is available in small VSON package for space-constrained applications. The full-duplex device is available in standard 14-SOIC package.

THVD9491-SP is a ±40V fault-protected, half and full-duplex RS-422/RS-485 transceivers using a 1.65V to 5.5V logic supply for data and enable logic signals, and a 3V to 5.5V bus side supply. The devices have slew rate select feature that enables the devices to be used at two maximum speeds based on the SLR pin setting

These devices feature integrated IEC ESD protection, eliminating the need for external system-level protection components. Symmetric ±12V input common-mode range makes reliable data communication over longer cable run lengths and/or in the presence of large ground loop voltages. Enhanced 250mV receiver hysteresis provides high noise rejection. In addition, the receiver fail-safe feature makes sure of a logic high when the inputs are open or shorted together.

The half-duplex device is available in small VSON package for space-constrained applications. The full-duplex device is available in standard 14-SOIC package.
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Documentación técnica

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* Data sheet THVD9491-SP Radiation-Hardened ±40V Fault-Protected 3V to 5.5V RS-485 Transceiver with Flexible I/O Supply and IEC ESD datasheet PDF | HTML 06 abr 2026

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

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Guía del usuario: PDF | HTML
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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
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TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 14 Ultra Librarian
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL)/reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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