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ISO7421-EP

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Enhanced product, 2-channel, 1/1, digital isolator

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ISO7421-EP

ACTIVO
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Detalles del producto

Rating HiRel Enhanced Product Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 1 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 17.8 Propagation delay time (typ) (ns) 9 Propagation delay time (max) (ns) 14 Part-to-part output skew (max) (ns) 4.9 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 4 Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 566 Withstand isolation voltage (VISO) (Vrms) 2500 Surge isolation voltage (VIOSM) (kVPK) 4 CMTI (min) (kV/µs) 25 Default output High Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1.5 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
Rating HiRel Enhanced Product Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 1 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 17.8 Propagation delay time (typ) (ns) 9 Propagation delay time (max) (ns) 14 Part-to-part output skew (max) (ns) 4.9 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 4 Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 566 Withstand isolation voltage (VISO) (Vrms) 2500 Surge isolation voltage (VIOSM) (kVPK) 4 CMTI (min) (kV/µs) 25 Default output High Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1.5 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Highest Signaling Rate: 1 Mbps
  • Low Power Consumption, Typical ICC per Channel (3.3-V Operation): 1.5 mA
  • Low Propagation Delay – 9 ns Typical
  • Low Skew – 300 ps Typical
  • Wide TJ Range: -55°C to 136°C
  • 50-kV/µs Transient Immunity, Typical
  • Over 25-Year Isolation Integrity at Rated Voltage
  • Operates From 3.3-V and 5-V Supply and Logic Levels
  • 3.3-V and 5-V Level Translation
  • Narrow Body SOIC-8 Package
  • Safety and Regulatory Approvals:
    • 4242 VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 2500 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
    • CQC Certification per GB4943.1-2011
  • Highest Signaling Rate: 1 Mbps
  • Low Power Consumption, Typical ICC per Channel (3.3-V Operation): 1.5 mA
  • Low Propagation Delay – 9 ns Typical
  • Low Skew – 300 ps Typical
  • Wide TJ Range: -55°C to 136°C
  • 50-kV/µs Transient Immunity, Typical
  • Over 25-Year Isolation Integrity at Rated Voltage
  • Operates From 3.3-V and 5-V Supply and Logic Levels
  • 3.3-V and 5-V Level Translation
  • Narrow Body SOIC-8 Package
  • Safety and Regulatory Approvals:
    • 4242 VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 2500 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
    • CQC Certification per GB4943.1-2011

The ISO7421-EP device provides galvanic isolation up to 2500 VRMS for 1 minute per UL. The ISO7421-EP device has two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, the device prevents noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry.

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

The ISO7421-EP device is specified for signaling rates up to 1 Mbps. Due to its fast response time, under most cases, this device 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 ISO7421-EP device provides galvanic isolation up to 2500 VRMS for 1 minute per UL. The ISO7421-EP device has two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, the device prevents noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry.

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

The ISO7421-EP device is specified for signaling rates up to 1 Mbps. Due to its fast response time, under most cases, this device 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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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ISO7421-EP Low-Power Dual Digital Isolators datasheet PDF | HTML 1/12/2015
Informe Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 7/11/2025
Informe Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16/11/2021
Informe Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11/06/2021

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

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