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適用於訊號隔離器的功率
含整合式功率的訊號隔離器

ISOW7821

現行

具有整合式電源的雙通道、1/1、強化數位隔離器

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產品規格表

ISOW7821

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Working isolation voltage (VIOWM) (Vrms) 1000 Surge isolation voltage (VIOSM) (VPK) 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 100 Operating temperature range (°C) -40 to 125 Type Digital isolator
Rating Catalog Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Working isolation voltage (VIOWM) (Vrms) 1000 Surge isolation voltage (VIOSM) (VPK) 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 100 Operating temperature range (°C) -40 to 125 Type Digital isolator
SO-MOD (DWE) 16 106.09 mm² 10.3 x 10.3
  • 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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類型 標題 日期
* Data sheet ISOW7821 High-Performance, 5000-VRMS Reinforced Dual-Channel Digital Isolator With Integrated High-Efficiency, Low-Emissions DC-DC Converter datasheet (Rev. B) PDF | HTML 2019年 8月 23日
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 2024年 2月 29日
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) PDF | HTML 2023年 9月 7日
Certificate CQC Certificate for ISOxxDWx (Rev. J) 2023年 3月 27日
Certificate CSA Certificate for ISOW78xxDWE 2023年 2月 21日
Certificate TUV Certificate for Isolation Devices (Rev. K) 2022年 8月 5日
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. P) 2022年 8月 5日
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021年 11月 16日
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 2021年 6月 11日
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. C) PDF | HTML 2021年 5月 25日
Application brief How to Isolate Signal and Power in Isolated CAN Systems (Rev. C) PDF | HTML 2021年 5月 25日
Application brief How to Isolate Signal and Power for I2C (Rev. B) PDF | HTML 2021年 5月 19日
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 2021年 3月 4日
Application brief Overvoltage Protection for Isolated DC/DC Converter (Rev. A) 2019年 9月 19日
Technical article Designing compact, efficient and high performing multiparameter patient monitors PDF | HTML 2019年 6月 25日
Application note Low-Emission Designs With ISOW7841 Integrated Signal and Power Isolator (Rev. C) 2019年 2月 26日
Technical article Understanding current sensing in HEV/EV batteries PDF | HTML 2017年 8月 2日

設計與開發

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開發板

ISOW7841EVM — 具有整合 DC/DC 轉換器的 ISOW7841 四通道數位隔離器評估模組

The ISOW7841EVM is an evaluation module (EVM) used to evaluate the ISOW7841. The ISOW7841 is a high-performance, reinforced quad-channel digital isolator with integrated DC/DC converter in a wide-body SOIC package (package code, DWE). The EVM features enough test points and jumper (...)

使用指南: PDF
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參考設計

TIDA-00847 — 採用具有整合電源的數位隔離器且尺寸和成本經最佳化的二進位模組參考設計

This reference design showcases space- and cost-optimized architecture for a 4-channel DC-input binary module with improved measurement accuracy and status indication using only two products simplifying system design. MCU-based binary module improves measurement resolution of binary input (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-010008 — 適合於電網應用之瞬態保護的平箝制 TVS 架構參考設計

This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
Design guide: PDF
電路圖: PDF
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