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Aislamiento
Aisladores digitales

ISO7821

ACTIVO

Aislador digital reforzado doble canal, 1/1 con aislamiento nominal más alto

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ISO7821

ACTIVO
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Detalles del producto

Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 15.5 Propagation delay time (typ) (ns) 10.7 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 4.6 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Surge isolation voltage (VIOSM) (kVPK) 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 8, 14.5 Current consumption per channel (DC) (typ) (mA) 1.2 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 Supply voltage (min) (V) 2.25 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 15.5 Propagation delay time (typ) (ns) 10.7 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 4.6 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Surge isolation voltage (VIOSM) (kVPK) 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 8, 14.5 Current consumption per channel (DC) (typ) (mA) 1.2 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 Supply voltage (min) (V) 2.25 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SOIC (DWW) 16 177.675 mm² 10.3 x 17.25
  • Signaling Rate: Up to 100Mbps
  • Wide Supply Range: 2.25V to 5.5V
  • 2.25V to 5.5V Level Translation
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.8mA per Channel at 1Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Industry leading CMTI(Min): ±100kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 25 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7kVRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, TUV and Planned for VDE, CSA, and CQC
  • Signaling Rate: Up to 100Mbps
  • Wide Supply Range: 2.25V to 5.5V
  • 2.25V to 5.5V Level Translation
  • Wide Temperature Range: –55°C to 125°C
  • Low Power Consumption, Typical 1.8mA per Channel at 1Mbps
  • Low Propagation Delay: 11ns Typical (5V Supplies)
  • Industry leading CMTI(Min): ±100kV/µs
  • Robust Electromagnetic Compatibility (EMC)
  • System-Level ESD, EFT, and Surge Immunity
  • Low Emissions
  • Isolation Barrier Life: > 25 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7kVRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
    • CQC Certification per GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, TUV and Planned for VDE, CSA, and CQC

The ISO7821 is a high-performance, dual-channel digital isolator with 8000VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is ’high’ for the ISO7821 and ’low’ for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7821 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption.

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The ISO7821 is a high-performance, dual-channel digital isolator with 8000VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is ’high’ for the ISO7821 and ’low’ for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7821 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Fecha
* Data sheet ISO782 1 x High-Performance, 8000VPK Reinforced Dual Channel Digital Isolator datasheet (Rev. H) PDF | HTML 20 nov 2024
White paper High-voltage reinforced isolation: Definitions and test methodologies (Rev. A) PDF | HTML 12 may 2026
Certificate TUV Certificate for Isolation Devices (Rev. M) 07 may 2026
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 07 may 2026
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AA) 10 mar 2026
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 07 nov 2025
Certificate CQC Certificate for ISOxxDWx (Rev. K) 18 ago 2025
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML 13 sep 2023
White paper Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps PDF | HTML 31 ago 2023
Certificate CSA Certificate for ISO78xxDWx 13 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
Analog Design Journal Pushing the envelope with high-performance digital-isolation technology (Rev. A) 22 ago 2018
Application brief Considerations for Selecting Digital Isolators 24 jul 2018
Functional safety information Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) 18 may 2018
Analog Design Journal How to reduce radiated emissions of digital isolators for systems with RF module 26 mar 2018
Application note Isolation Glossary (Rev. A) 19 sep 2017
Analog Design Journal 4Q 2015 Analog Applications Journal 30 oct 2015
Analog Design Journal Common-mode transient immunity for isolated gate drivers 30 oct 2015
White paper Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. B) 25 sep 2015
White paper Understanding electromagnetic compliance tests in digital isolators 17 oct 2014

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

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

EL DIGI-ISO-EVM es un EVM que se utiliza para evaluar cualquiera de los dispositivos aisladores digitales monocanal, doble canal, triple canal, cuádruple canal o seis canales de TI en cinco paquetes diferentes: circuito integrado de contorno pequeño de cuerpo estrecho (D) de 8 pines, SOIC de cuerpo (...)

Guía del usuario: PDF | HTML
No disponible en TI.com
Placa de evaluación

ISO7842-EVM — Módulo de evaluación de aislador digital 2/2 de cuatro canales reforzado y 5.7 kVRMS de alta inmunid

The ISO7842 provides galvanic isolation up to 5700 VRMS for 1 minute per UL and 8000 VPK per VDE. This device has four isolated channels comprised of a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, this (...)

Guía del usuario: PDF
No disponible en TI.com
Modelo de simulación

ISO7821 IBIS Model (Rev. A)

SLLM266A.ZIP (52 KB) - IBIS Model
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Modelo de simulación

ISO7821F IBIS Model (Rev. B)

SLLM276B.ZIP (52 KB) - IBIS Model
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Diseños de referencia

TIDA-00785 — Diseño de referencia de controlador GaN aislado

Este diseño de referencia consta de un aislador digital de doble canal reforzado, un controlador de compuerta de GaN y fuentes de alimentación aisladas. Este diseño de referencia compacto está pensado para controlar GaN en fuentes de alimentación, convertidores CC-CC, rectificación sincrónica, (...)
Design guide: PDF
Esquema: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (DW) 16 Ultra Librarian
SOIC (DWW) 16 Ultra Librarian
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Pedidos y calidad

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  • 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
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