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ISO7741

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Reinforced 4-channel, 3/1, digital isolator

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ISO6441 現行 Robust EMC, reinforced/Basic 4-channel, 3/1, digital isolator with 250kV/us CMTI, 150Mbps Pin-to-pin cost-effective solution; 250kV/us CMTI and 150 Mbps that supports most digital isolation applications

ISO7741

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) 10.7 Propagation delay time (max) (ns) 17 Part-to-part output skew (max) (ns) 4.4 Channel-to-channel output skew (max) (ns) 4 Certifications CQC, CSA, DIN, TUV Isolation rating Basic, Reinforced Withstand isolation voltage (VISO) (Vrms) 3000, 5000 Surge isolation voltage (VIOSM) (kVPK) 7.8, 10, 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 3.7, 8 Current consumption per channel (DC) (typ) (mA) 0.9 Current consumption per channel (1 Mbps) (typ) (mA) 1.45 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Clearance (min) (mm) 3.7, 8
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) 10.7 Propagation delay time (max) (ns) 17 Part-to-part output skew (max) (ns) 4.4 Channel-to-channel output skew (max) (ns) 4 Certifications CQC, CSA, DIN, TUV Isolation rating Basic, Reinforced Withstand isolation voltage (VISO) (Vrms) 3000, 5000 Surge isolation voltage (VIOSM) (kVPK) 7.8, 10, 12.8 CMTI (min) (kV/µs) 85 Default output High, Low Creepage (min) (mm) 3.7, 8 Current consumption per channel (DC) (typ) (mA) 0.9 Current consumption per channel (1 Mbps) (typ) (mA) 1.45 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Clearance (min) (mm) 3.7, 8
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm) SSOP (DBQ) 16 29.4 mm² (4.9 mm × 6 mm)
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • Up to 5000VRMS isolation rating
    • Up to 12.8kV surge capability
    • ±100kV/µs typical CMTI
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Wide temperature range: –55°C to 125°C
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: 10.7ns typical (5V Supplies)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Automotive version available: ISO774x-Q1
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications
  • 100Mbps data rate
  • Robust isolation barrier:
    • >30-year projected lifetime at 1500VRMS working voltage
    • Up to 5000VRMS isolation rating
    • Up to 12.8kV surge capability
    • ±100kV/µs typical CMTI
  • Wide supply range: 2.25V to 5.5V
  • 2.25V to 5.5V level translation
  • Default output high (ISO774x) and low (ISO774xF) options
  • Wide temperature range: –55°C to 125°C
  • Low power consumption, typical 1.5mA per channel at 1Mbps
  • Low propagation delay: 10.7ns typical (5V Supplies)
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Low emissions
  • Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
  • Automotive version available: ISO774x-Q1
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

The ISO774x devices are high-performance, quad-channel digital isolators with 5000VRMS (DW package) and 3000VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only.

The ISO774x devices provide 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 double capacitive silicon dioxide (SiO2) insulation barrier. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and theISO7742device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN, or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of the ISO774x devices significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.

The ISO774x devices are high-performance, quad-channel digital isolators with 5000VRMS (DW package) and 3000VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only.

The ISO774x devices provide 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 double capacitive silicon dioxide (SiO2) insulation barrier. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and theISO7742device has two forward and two reverse-direction channels. If the input power or signal is lost, default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN, or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of the ISO774x devices significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.

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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 ISO774x High-Speed, Robust-EMC Reinforced and Basic Quad-Channel Digital Isolators datasheet (Rev. J) PDF | HTML 2024/10/11
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
應用說明 Understand Safety Requirements and Isolation for High-Voltage Application Part I PDF | HTML 2026/6/15
證書 VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) 2026/6/11
應用說明 Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. C) PDF | HTML 2026/5/19
證書 CSA Certificate for ISO77xxDW (Rev. C) 2026/5/7
證書 CSA Certificate for ISO77xxDBQ (Rev. B) 2026/5/7
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
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. D) PDF | HTML 2025/11/7
證書 CQC Certificate for ISOxxDBQ (Rev. B) 2025/8/19
證書 CQC Certificate for ISOxxDWx (Rev. K) 2025/8/18
Circuit design Digitally-isolated ADS8689 circuit design (Rev. B) PDF | HTML 2024/9/17
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
應用說明 Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) PDF | HTML 2023/5/16
應用說明 IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection PDF | HTML 2023/2/16
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
白皮書 為太陽能電網增添儲能功能的四項 重要設計考量 Download English Version 2021/5/5
技術文章 Understand and apply safety-limiting values for digital isolators PDF | HTML 2021/1/20
Application brief Converting SPI to GPIO Through Digital Isolators PDF | HTML 2020/10/16
白皮書 Signal and Power Isolation Considerations for Compact, Efficient Analog Input PDF | HTML 2020/10/5
應用說明 Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) PDF | HTML 2020/9/2
Application brief What is EMC? 4 Questions About EMI, Radiated Emissions, ESD and EFT in Isolated PDF | HTML 2020/7/21
功能安全資訊 ISO7741-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020/6/18
技術文章 What are isolated digital inputs? PDF | HTML 2019/3/8
技術文章 Top 9 design questions about digital isolators PDF | HTML 2019/2/4
應用說明 Industrial data-acquisition interfaces with digital isolators (Rev. A) 2018/10/2
技術文章 Interfacing multiple ADCs to a single processor for grid protection and control PDF | HTML 2018/9/13
Application brief Considerations for Selecting Digital Isolators 2018/7/24
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
Application brief Reducing System Cost, Size and Power in Isolated DAQ Systems Using ADS122U04 (Rev. A) 2017/6/15
白皮書 Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. B) 2015/9/25

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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。

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ISO7741DBQEVM — ISO7741 評估模組（DBQ 封裝）

ISO7741DBQEVM 是一款評估模組，可用於評估採用 16 接腳 SSOP 封裝（封裝代碼 DBQ）的 ISO7741 高性能、強化型四通道數位隔離器。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。
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ISO7741EVM — EMC 性能優異的 ISO7741 高速四通道數位隔離器評估模組

ISO7741EVM 是用於評估 ISO7741 的評估模組 (EVM)。ISO7741 是一款高性能、強化型四通道數位隔離器，並採用寬體 SOIC 封裝（封裝代碼 DW）。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。
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子卡

TPS23882EVM-084 — TPS23882 Type-3、30W、2 對、PSE 子板 (用於 24 埠 PSE 系統)

TPS23882EVM-084 是一款 24 埠（24 通道）子卡，用於評估 TPS23882，TPS23882 是具有 200mΩ 感測電阻的兩對、第三類、八通道乙太網路供電 (PoE) PSE。此子卡可為高埠數應用 (例如校園和分公司交換器以及網路攝影機) 中的 TPS23882 提供評估和參考電路。

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模擬型號

ISO7741 IBIS Model (Rev. A)

SLLM311A.ZIP (62 KB) - IBIS 模型
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ISO7741 PSpice Transient Model

SLLM465.ZIP (1 KB) - PSpice 模型
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