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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

ISOW7844

現行

High voltage, 4-channel, 0/4, reinforced digital isolator with integrated power

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產品規格表

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ISOW7744 現行 Reinforced, 4-channel, 0/4, digital isolator with integrated power Performance upgrade with lower radiation emission and lower output ripple

ISOW7844

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Isolation rating Basic, Reinforced Number of channels 4 Forward/reverse channels 0 forward / 4 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, Reinforced Number of channels 4 Forward/reverse channels 0 forward / 4 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 mm × 10.3 mm)
  • 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
  • Integrated high-efficiency DC-DC converter with on-chip transformer
  • 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
  • 3.3 V to 5 V: Available load current ≥ 40 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 V 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 and EN 61010-1
  • 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
  • Integrated high-efficiency DC-DC converter with on-chip transformer
  • 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
  • 3.3 V to 5 V: Available load current ≥ 40 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 V 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 and EN 61010-1

The ISOW784x is a family of high-performance, quad-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 these devices eliminate the need for a separate isolated power supply in space-constrained isolated designs.

The ISOW784x is a family of high-performance, quad-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 these devices eliminate the need for a separate isolated power supply in space-constrained isolated designs.

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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 ISOW784x High-Performance, 5000-VRMS Reinforced Quad-Channel Digital Isolators with Integrated High-Efficiency, Low-Emissions DC-DC Converter datasheet (Rev. G) PDF | HTML 2021/8/24
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
白皮書 以可靠且經濟實惠的隔離技術解決高 電壓設計挑戰 PDF | HTML PDF | HTML 2026/5/28
證書 TUV Certificate for Isolation Devices (Rev. M) 2026/5/7
證書 UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 2026/5/7
Application brief How to Isolate Signal and Power in Isolated CAN Systems (Rev. D) PDF | HTML 2025/11/7
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. D) PDF | HTML 2025/11/7
白皮書 Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 2025/11/7
證書 CQC Certificate for ISOxxDWx (Rev. K) 2025/8/18
證書 CSA Certificate for ISOW78xxDWE 2023/2/21
白皮書 Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021/11/16
白皮書 Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 2021/6/11
Application brief How to Isolate Signal and Power for I2C (Rev. B) PDF | HTML 2021/5/19
Application brief Overvoltage Protection for Isolated DC/DC Converter (Rev. A) 2019/9/19
應用說明 Low-Emission Designs With ISOW7841 Integrated Signal and Power Isolator (Rev. C) 2019/2/26

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

ISOW7841EVM 評估模組 (EVM) 用於評估 ISOW7841。ISOW7841 是一款高性能、強化型四通道數位隔離器，具有整合式 DC/DC 轉換器，並採用寬體 SOIC 封裝（封裝代碼 DWE）。EVM 具備足夠的測試點和跨接器選項，可用於評估具最少外部零組件的裝置。

使用指南: PDF
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模擬型號

ISOW7844 IBIS Model

SLLM341.ZIP (31 KB) - IBIS 模型
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參考設計

TIDA-00420 — ADC 架構、數位隔離、廣泛輸入、16 通道、AC/DC 二進位輸入參考設計

此參考設計展現具強化型隔離的成本最佳化、可擴充 ADC 架構 AC/DC 二進位輸入模組 (BIM) 架構。10 位元或 12 位元 SAR ADC 的 16 通道，用於感測多個二進位輸入。運算放大器除了維持低每頻道成本外，也可為各輸入提供最佳訊號調節。數位隔離器 (基本型或強化型) 可用於隔離主機 MCU 或處理器。提供可測量溫度，濕度和磁場以進行診斷的設備。具可配置輸出的強化型隔離 DC/DC 電源供應器，可提供二進位模組所需的電源。

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參考設計

TIDA-00892 — 具有整合訊號和電源的隔離式 RS-485 參考設計

TIDA-00892 參考設計提供一套精巧型解決方案，能產生隔離式 DC 電源，同時支援隔離式 RS-485 通訊。此設計包含一個具整合電源功能的強化型數位隔離器，搭配 RS-485 通訊收發器。
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參考設計

TIDA-01230 — 具有整合訊號和電源的隔離式 RS-232 參考設計

TIDA-01230 參考設計提供一套精巧型解決方案，能產生隔離式 DC 電源，同時支援隔離式 RS-232 通訊。此設計包含一個具整合電源功能的強化型數位隔離器，搭配 RS-232 通訊收發器。
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SO-MOD (DWE) 16 Ultra Librarian
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