ISO35T

ACTIVO

Transceptor RS-485 y RS-422 aislado de dúplex completo, 2.5 kVrms y 1 Mbps con controlador de transf

Detalles del producto

Rating Catalog Isolation rating Basic Data rate (max) (Mbps) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (kV/µs) 25 Operating temperature range (°C) -40 to 85 Type RS-485
Rating Catalog Isolation rating Basic Data rate (max) (Mbps) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (kV/µs) 25 Operating temperature range (°C) -40 to 85 Type RS-485
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Designed for RS-485 and RS-422 Applications
  • Signaling Rates up to 1 Mbps
  • 1/8 Unit Load – up to 256 Nodes on a Bus
  • Thermal Shutdown Protection
  • Typical Efficiency > 60% (I LOAD = 100 mA) - See SLUU470
  • Low-Driver Bus Capacitance 16 pF (Typical)
  • Fail-Safe Receiver for Bus Open, Short, Idle
  • Logic Inputs are 5-V Tolerant
  • 50-kV/µs Typical Transient Immunity
  • Bus-Pin ESD Protection
    • 16-kV HBM Between Bus-Pins and GND2
    • 6-kV HBM Between Bus-Pins and GND1
  • Safety and Regulatory Approvals
    • 4242 V PK Basic Insulation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500 V RMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards

  • Designed for RS-485 and RS-422 Applications
  • Signaling Rates up to 1 Mbps
  • 1/8 Unit Load – up to 256 Nodes on a Bus
  • Thermal Shutdown Protection
  • Typical Efficiency > 60% (I LOAD = 100 mA) - See SLUU470
  • Low-Driver Bus Capacitance 16 pF (Typical)
  • Fail-Safe Receiver for Bus Open, Short, Idle
  • Logic Inputs are 5-V Tolerant
  • 50-kV/µs Typical Transient Immunity
  • Bus-Pin ESD Protection
    • 16-kV HBM Between Bus-Pins and GND2
    • 6-kV HBM Between Bus-Pins and GND1
  • Safety and Regulatory Approvals
    • 4242 V PK Basic Insulation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500 V RMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards

The ISO35T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is a full-duplex differential line transceiver for RS-485 and RS-422 applications that can easily be configured for half-duplex operation by connecting pin 11 to pin 14, and pin 12 to pin 13.

These devices are ideal for long transmission lines since the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 4242V PK of isolation per VDE for 60s between the bus-line transceiver and the logic-level interface.

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or near-by sensitive circuitry if they are of sufficient magnitude and duration. The ISO35T can significantly reduce the risk of data corruption and damage to expensive control circuits.

The ISO35T is specified for use from –40°C to 85°C.

The ISO35T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is a full-duplex differential line transceiver for RS-485 and RS-422 applications that can easily be configured for half-duplex operation by connecting pin 11 to pin 14, and pin 12 to pin 13.

These devices are ideal for long transmission lines since the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 4242V PK of isolation per VDE for 60s between the bus-line transceiver and the logic-level interface.

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or near-by sensitive circuitry if they are of sufficient magnitude and duration. The ISO35T can significantly reduce the risk of data corruption and damage to expensive control circuits.

The ISO35T is specified for use from –40°C to 85°C.

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ISO1432 ACTIVO Transceptor RS-485 y RS-422 aislado de dúplex completo, 5 kVrms y 12 Mbps con protección EMC This is a non-power integrated 12-Mbps device with higher isolation rating, increased transceiver EMC protection, wider supply range and stronger CMTI

Documentación técnica

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Tipo Título Fecha
* Data sheet ISO35T Isolated 3.3V RS-485 Transceiver With Integrated Transformer Driver datasheet (Rev. E) PDF | HTML 18 ago 2023
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 ene 2024
Certificate CSA Certificate for ISOxxTDW 21 feb 2023
Product overview Isolation for RS-485 PDF | HTML 21 ago 2022
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 2 10 ago 2022
Application brief Robust Isolated RS-485 Enables New Industrial Applications (Rev. C) PDF | HTML 26 jul 2022
Application brief How to Isolate RS-485 for Smallest Size and Highest Reliability (Rev. C) PDF | HTML 06 jul 2022
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16 nov 2021
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11 jun 2021
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. C) PDF | HTML 25 may 2021
Analog Design Journal 3Q 2011 Issue Analog Applications Journal 16 sep 2011
Analog Design Journal Isolated RS-485 transceivers support DMX512 stage lighting & special-effects app 16 sep 2011
User guide ISO35T EVM-434 Description. (Rev. B) 01 jun 2011
EVM User's guide ISO1176T/35T/3086T Evaluation Module User's Guide (Rev. A) 13 jul 2010

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

ISO1176TEVM — Módulo de evaluación ISO1176T

This document describes the ISO1176T/35T/3086T Evaluation Module (EVM). It is used to evaluate the ISO1176T PROFIBUS Transceiver, the ISO35T RS-485 transceiver, or ISO3086T RS-485 Transceiver. Because the devices are similar transceivers, and the printed-circuit board is the same for all three (...)

Guía del usuario: PDF
Placa de evaluación

ISO35TEVM — Módulo de evaluación ISO35T

This document describes the ISO1176T/35T/3086T Evaluation Module (EVM). It is used to evaluate the ISO1176T PROFIBUS Transceiver, the ISO35T RS-485 transceiver, or ISO3086T RS-485 Transceiver. Because the devices are similar transceivers, and the printed-circuit board is the same for all three (...)

Guía del usuario: PDF
Placa de evaluación

ISO35TEVM-434 — EVM ISO35T pequeño

The smaller EVM version shows the customer the spaced required for their design. This circuit provides an isolated, 20 Mbps. 3.3V to 3.3V RS-485 interface using the ISO35T, isolated RS-485 transceiver and the TPS76333 high accuracy linear regulator. This circuit achieves signal and power (...)

Guía del usuario: PDF
Modelo de simulación

ISO35T IBIS MODEL (Rev. A)

SLLM134A.ZIP (187 KB) - IBIS Model
Diseños de referencia

TIDA-00057 — Diseño de referencia de RS-485 aislado de 1 Mbps

This reference design provides an isolated, 1-Mbps, 3.3-V to 3.3-V RS-485 interface using the ISO35T, isolated RS-485 transceiver and the TPS76333 high-accuracy linear regulator. This board achieves signal and power isolation and at the same time decreases board space and power consumption.
Test report: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (DW) 16 Ultra Librarian

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

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