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ISO7421E-Q1

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Aislador automotriz digital de doble canal, 1/1, 50 Mbps

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ISO7421E-Q1

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Detalles del producto

Rating Automotive Integrated isolated power No Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Default output High Data rate (max) (Mbps) 50 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.009 Current consumption per channel (DC) (typ) (mA) 1.8 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 Creepage (min) (mm) 4 Clearance (min) (mm) 4
Rating Automotive Integrated isolated power No Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Default output High Data rate (max) (Mbps) 50 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.009 Current consumption per channel (DC) (typ) (mA) 1.8 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 Creepage (min) (mm) 4 Clearance (min) (mm) 4
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: -40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H3A
    • Device CDM ESD classification level C4
  • Propagation delay less than 20 ns
  • Low power consumption
  • Safety and regulatory approvals
    • 4242 VPK Isolation per VDE, 2.5 kVrms isolation per UL 1577, CSA approved per IEC 60950-1 and IEC 61010-1 End Equipment Standards
  • 50 kV/µs Transient immunity typical
  • Operates from 3.3 V or 5 V Supply and logic levels
  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: -40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level H3A
    • Device CDM ESD classification level C4
  • Propagation delay less than 20 ns
  • Low power consumption
  • Safety and regulatory approvals
    • 4242 VPK Isolation per VDE, 2.5 kVrms isolation per UL 1577, CSA approved per IEC 60950-1 and IEC 61010-1 End Equipment Standards
  • 50 kV/µs Transient immunity typical
  • Operates from 3.3 V or 5 V Supply and logic levels

The ISO7421E-Q1 provides double galvanic isolation of up to 2.5 KVrms for 1 minute per UL. This digital isolator has two isolation channels in a bi-directional configuration. Each isolation channel has a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The devices have TTL input thresholds and require two supply voltages, 3.3 V or 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply.

Note: The ISO7421E-Q1 is specified for signaling rates up to 50 Mbps. Due to their fast response time, under most cases, these devices will also transmit data with much shorter pulse widths. Designers should add external filtering to remove spurious signals with input pulse duration < 20 ns if desired.

The ISO7421E-Q1 provides double galvanic isolation of up to 2.5 KVrms for 1 minute per UL. This digital isolator has two isolation channels in a bi-directional configuration. Each isolation channel has a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

The devices have TTL input thresholds and require two supply voltages, 3.3 V or 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply.

Note: The ISO7421E-Q1 is specified for signaling rates up to 50 Mbps. Due to their fast response time, under most cases, these devices will also transmit data with much shorter pulse widths. Designers should add external filtering to remove spurious signals with input pulse duration < 20 ns if desired.
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Documentación técnica

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Tipo Título Fecha
* Data sheet Low-power dual digital isolators datasheet (Rev. C) PDF | HTML 07 feb 2019
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 31 ene 2024
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) PDF | HTML 07 sep 2023
Certificate CSA Certificate for ISO752xDW ISO7421E-Q1DW 15 mar 2023
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 Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) PDF | HTML 19 may 2021
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 04 mar 2021
Application brief Considerations for Selecting Digital Isolators 24 jul 2018

Diseño y desarrollo

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Placa de evaluación

DIGI-ISO-EVM — Módulo de evaluación de aislador digital universal

El DIGI-ISO-EVM es un módulo de evaluación (EVM) que se utiliza para evaluar cualquiera de los dispositivos aisladores digitales de un canal, dos canales, tres canales, cuatro canales o seis canales de TI en cinco encapsulados diferentes: SOIC de estructura estrecha (D) de 8 pines, SOIC de (...)

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Modelo de simulación

ISO7421FE IBIS Model

SLLM136.ZIP (26 KB) - IBIS Model
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (DW) 16 Ultra Librarian
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