ISOW7821

ACTIVO

High voltage, 2-channel, 1/1, reinforced digital isolator with integrated power

Detalles del producto

Rating Catalog Isolation rating Reinforced Surge isolation voltage (VIOSM) (VPK) 10000 Operating temperature range (°C) -40 to 125
Rating Catalog Isolation rating Reinforced Surge isolation voltage (VIOSM) (VPK) 10000 Operating temperature range (°C) -40 to 125
SO-MOD (DWE) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • Integrated High-Efficiency DC-DC Converter With On-Chip Transformer
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-Year projected lifetime at 1 kVRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 10 kVPK surge capability
    • ±100 kV/µs minimum CMTI
  • 3-V to 5.5-V Wide Input Supply Range
  • Regulated 5-V or 3.3-V Output
  • Up to 0.65-W Output Power
  • 5 V to 5 V; 5 V to 3.3 V: Available Load Current ≥ 130 mA
  • 3.3 V to 3.3 V: Available Load Current ≥ 75 mA
  • Soft-Start to Limit Inrush Current
  • Overload and Short-Circuit Protection
  • Thermal Shutdown
  • Default Output: High and Low Options
  • Low Propagation Delay: 13 ns Typ (5-V Supply)
  • Robust Electromagnetic Compatibility (EMC)
    • System-Level ESD, EFT, and Surge Immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low Emissions
  • 16-pin Wide SOIC Package
  • Extended Temperature Range: –40°C to +125°C
  • Safety-Related Certifications:
    • 7071-VPK Reinforced Isolation per DIN VDE V 0884-11:2017-01
    • 5000-VRMS Isolation for 1 Minute per UL 1577
    • CSA Certification per IEC 60950-1, IEC 62368-1, and IEC 60601-1 End Equipment Standards
    • CQC Approval per GB4943.1-2011
    • TUV Certification According to EN 60950-1, EN62368-1 and EN 61010-1
  • Integrated High-Efficiency DC-DC Converter With On-Chip Transformer
  • 100 Mbps data rate
  • Robust isolation barrier:
    • >100-Year projected lifetime at 1 kVRMS working voltage
    • Up to 5000 VRMS isolation rating
    • Up to 10 kVPK surge capability
    • ±100 kV/µs minimum CMTI
  • 3-V to 5.5-V Wide Input Supply Range
  • Regulated 5-V or 3.3-V Output
  • Up to 0.65-W Output Power
  • 5 V to 5 V; 5 V to 3.3 V: Available Load Current ≥ 130 mA
  • 3.3 V to 3.3 V: Available Load Current ≥ 75 mA
  • Soft-Start to Limit Inrush Current
  • Overload and Short-Circuit Protection
  • Thermal Shutdown
  • Default Output: High and Low Options
  • Low Propagation Delay: 13 ns Typ (5-V Supply)
  • Robust Electromagnetic Compatibility (EMC)
    • System-Level ESD, EFT, and Surge Immunity
    • ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low Emissions
  • 16-pin Wide SOIC Package
  • Extended Temperature Range: –40°C to +125°C
  • Safety-Related Certifications:
    • 7071-VPK Reinforced Isolation per DIN VDE V 0884-11:2017-01
    • 5000-VRMS Isolation for 1 Minute per UL 1577
    • CSA Certification per IEC 60950-1, IEC 62368-1, and IEC 60601-1 End Equipment Standards
    • CQC Approval per GB4943.1-2011
    • TUV Certification According to EN 60950-1, EN62368-1 and EN 61010-1

The ISOW7821 device is a high-performance, dual-channel reinforced digital isolators with an integrated high-efficiency power converter. The integrated DC-DC converter provides up to 650 mW of isolated power at high efficiency and can be configured for various input and output voltage configurations. Therefore this device eliminates the need for a separate isolated power supply in space-constrained isolated designs.

The ISOW7821 device provides high electromagnetic immunity and low emissions while isolating CMOS or LVCMOS digital I/Os. The signal-isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. Various configurations of forward and reverse channels are available. If the input signal is lost, the default output is high for the ISOW7821 device and low for the device with the F suffix (see the Device Features).

These devices help prevent 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 the ISOW7821 device has been significantly enhanced to ease system-level ESD, EFT, surge and emissions compliance. The high-efficiency of the power converter allows operation at a higher ambient temperature. The ISOW7821 device is available in a 16-pin SOIC wide-body (SOIC-WB) DWE package.

The ISOW7821 device is a high-performance, dual-channel reinforced digital isolators with an integrated high-efficiency power converter. The integrated DC-DC converter provides up to 650 mW of isolated power at high efficiency and can be configured for various input and output voltage configurations. Therefore this device eliminates the need for a separate isolated power supply in space-constrained isolated designs.

The ISOW7821 device provides high electromagnetic immunity and low emissions while isolating CMOS or LVCMOS digital I/Os. The signal-isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. Various configurations of forward and reverse channels are available. If the input signal is lost, the default output is high for the ISOW7821 device and low for the device with the F suffix (see the Device Features).

These devices help prevent 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 the ISOW7821 device has been significantly enhanced to ease system-level ESD, EFT, surge and emissions compliance. The high-efficiency of the power converter allows operation at a higher ambient temperature. The ISOW7821 device is available in a 16-pin SOIC wide-body (SOIC-WB) DWE package.

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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 ISOW7821 High-Performance, 5000-VRMS Reinforced Dual-Channel Digital Isolator With Integrated High-Efficiency, Low-Emissions DC-DC Converter datasheet (Rev. B) PDF | HTML 23/08/2019
Certificado VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 15/07/2026
Certificado TUV Certificate for Isolation Devices (Rev. M) 7/05/2026
Certificado UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 7/05/2026
Application brief How to Isolate Signal and Power in Isolated CAN Systems (Rev. D) PDF | HTML 7/11/2025
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. D) PDF | HTML 7/11/2025
Informe Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 7/11/2025
Certificado CQC Certificate for ISOxxDWx (Rev. K) 18/08/2025
Nota sobre la aplicación Temperature Monitor for Power Modules and Power Electronic Parts 30/07/2025
Certificado CSA Certificate for ISOW78xxDWE 21/02/2023
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
Application brief How to Isolate Signal and Power for I2C (Rev. B) PDF | HTML 19/05/2021
Application brief Overvoltage Protection for Isolated DC/DC Converter (Rev. A) 19/09/2019
Artículo técnico Designing compact, efficient and high performing multiparameter patient monitors PDF | HTML 25/06/2019
Nota sobre la aplicación Low-Emission Designs With ISOW7841 Integrated Signal and Power Isolator (Rev. C) 26/02/2019
Artículo técnico Understanding current sensing in HEV/EV batteries PDF | HTML 2/08/2017

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