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ISO7841

現行

具備 2,000VRMS VIOWM 與 14.5mm 爬電距離的高電壓、增強型 4 通道、3/1 數位隔離器

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產品規格表

ISO7841

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Integrated isolated power No Number of channels 4 Forward/reverse channels 3 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, SPI, UART Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Channel-to-channel output skew (max) (ns) 2.5 Certifications CQC, CSA, DIN, TUV, UL 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) 0.9 Current consumption per channel (1 Mbps) (typ) (mA) 1.53 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 4 Forward/reverse channels 3 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, SPI, UART Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 16 Part-to-part output skew (max) (ns) 4.5 Channel-to-channel output skew (max) (ns) 2.5 Certifications CQC, CSA, DIN, TUV, UL 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) 0.9 Current consumption per channel (1 Mbps) (typ) (mA) 1.53 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
SOIC (DWW) 16 177.675 mm² (10.3 mm × 17.25 mm) SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • 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 1.7mA 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: >40 Years
  • Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 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
    • TUV Certification per EN 61010-1 and EN 62368-1
  • 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 1.7mA 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: >40 Years
  • Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 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
    • TUV Certification per EN 61010-1 and EN 62368-1

The ISO7841x device is a high-performance, quad-channel digital isolator with a 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 a silicon-dioxide (SiO2) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7841 device has three forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7841 device and low for the ISO7841F device. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, this device helps 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 ISO7841 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7841 device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.

The ISO7841x device is a high-performance, quad-channel digital isolator with a 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 a silicon-dioxide (SiO2) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7841 device has three forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7841 device and low for the ISO7841F device. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, this device helps 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 ISO7841 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7841 device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
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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 ISO7841x High-Performance, 8000VPK Reinforced Quad-Channel Digital Isolator datasheet (Rev. I) PDF | HTML 2024/11/20
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
白皮書 High-voltage reinforced isolation: Definitions and test methodologies (Rev. A) PDF | HTML 2026/5/12
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
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
白皮書 Understanding failure modes in isolators (Rev. B) PDF | HTML 2024/1/29
應用說明 Digital Isolator Design Guide (Rev. G) PDF | HTML 2023/9/13
白皮書 Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps PDF | HTML 2023/8/31
證書 CSA Certificate for ISO78xxDWx 2023/3/13
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
技術文章 Understand and apply safety-limiting values for digital isolators PDF | HTML 2021/1/20
Application brief A Reinforced-isolated Analog Input Chain for Space-constrained Applications 2019/9/1
類比設計期刊 Pushing the envelope with high-performance digital-isolation technology (Rev. A) 2018/8/22
Application brief Considerations for Selecting Digital Isolators 2018/7/24
功能安全資訊 Isolation in solar power converters: Understanding the IEC62109-1 safety standar (Rev. A) 2018/5/18
類比設計期刊 How to reduce radiated emissions of digital isolators for systems with RF module 2018/3/26
應用說明 Isolation Glossary (Rev. A) 2017/9/19
類比設計期刊 How to use isolation to improve ESD, EFT and surge immunity in industrial system 2017/7/24
類比設計期刊 Common-mode transient immunity for isolated gate drivers 2015/10/30
類比設計期刊 4Q 2015 Analog Applications Journal 2015/10/30
白皮書 Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. B) 2015/9/25
白皮書 Understanding electromagnetic compliance tests in digital isolators 2014/10/17

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開發板

DIGI-ISO-EVM — 通用數位隔離器評估模組

DIGI-ISO-EVM 是一款評估模組 (EVM)，可評估任何 TI 單通道、雙通道、三通道、四通道或六通道數位隔離器裝置，並提供五種不同封裝 - 8 接腳窄體 SOIC (D)、8 接腳寬體 SOIC (DWV)、16 接腳寬體 SOIC (DWW)、16 接腳超寬體 SOIC (DWW) 和 16 接腳 (DBQ) 封裝。EVM 具備足夠 Berg 接腳選項，可用於評估具最少外部零組件的裝置。

使用指南: PDF | HTML
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開發板

ISO7842-EVM — 高抗擾度、5.7kVRMS 強化四通道 2/2 數位隔離器評估模組

ISO7842 可提供符合 UL 標準且高達 5700 VRMS 的電氣隔離能力（持續 1 分鐘），以及符合 VDE 標準的 8000 VPK 電氣隔離能力。此裝置具有四個隔離通道，每個通道皆由邏輯輸入與輸出緩衝器組成，兩者之間以二氧化矽 (SiO2) 絕緣隔離層加以隔離。與隔離電源結合使用時，此這些裝置可防止資料匯流排或其他電路上的雜訊進入本地接地並干擾或損壞敏感電路。

ISO7842-EVM 可協助設計人員評估裝置性能，支援快速開發與分析隔離式系統。EVM 支援評估採用 16 針腳 SOIC 封裝的任何 TI 四通道數位隔離器變體。

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模擬型號

ISO7841 IBIS Model (Rev. A)

SLLM267A.ZIP (52 KB) - IBIS 模型
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模擬型號

ISO7841F IBIS Model (Rev. A)

SLLM277A.ZIP (52 KB) - IBIS 模型
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參考設計

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參考設計

TIDA-01214 — 採用16 位元 ADC 和數位隔離器的隔離式高準確度類比輸入模組參考設計

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參考設計

TIDA-01576 — 具有 16 位元 1-MSPS 雙同步取樣 ADC 的高準確度類比輸入模組參考設計

此參考設計在廣泛輸入範圍內，使用精密 16 位元 SAR ADC 準確測量 16 通道 AC 電壓及電流輸入。此範圍涵蓋保護與測量要求 (包括 IEC 61850-9-2 的取樣要求)，可簡化系統設計並提升跳脫時間重複性、性能與可靠性。AC 類比輸入模組 (AIM) 使用具有整合電源轉換器或採用六通道的數位隔離器，與主機處理器隔離。在最簡單的配置中，完整的 AC AIM 只需使用五種 TI 產品即可設計，進而實現系統成本與尺寸最佳化。警報功能會以取樣方式識別 AC AIM 故障，以加快故障偵測速度。ADC 具有額外的輔助通道，可診斷數位隔離器電源的輸出，或補償量測類比輸入的溫度漂移。
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SOIC (DWW) 16 Ultra Librarian
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