產品詳細資料

Rating Catalog Integrated isolated power No Isolation rating Basic, Reinforced Number of channels 4 Forward/reverse channels 3 forward / 1 reverse Default output High, Low Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 7800, 10000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -55 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.88 Current consumption per channel (1 Mbps) (typ) (mA) 1.48 Creepage (min) (mm) 3.7, 8 Clearance (min) (mm) 3.7, 8
Rating Catalog Integrated isolated power No Isolation rating Basic, Reinforced Number of channels 4 Forward/reverse channels 3 forward / 1 reverse Default output High, Low Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 7800, 10000, 12800 Transient isolation voltage (VIOTM) (VPK) 4242, 8000 Withstand isolation voltage (VISO) (Vrms) 3000, 5000 CMTI (min) (V/µs) 85000 Operating temperature range (°C) -55 to 125 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 2.25 Propagation delay time (typ) (µs) 0.0107 Current consumption per channel (DC) (typ) (mA) 0.88 Current consumption per channel (1 Mbps) (typ) (mA) 1.48 Creepage (min) (mm) 3.7, 8 Clearance (min) (mm) 3.7, 8
SOIC (DW) 16 106.09 mm² 10.3 x 10.3 SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • 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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類型 標題 日期
* Data sheet ISO774x High-Speed, Robust-EMC Reinforced and Basic Quad-Channel Digital Isolators datasheet (Rev. J) PDF | HTML 2024年 10月 11日
Circuit design Digitally-isolated ADS8689 circuit design (Rev. B) PDF | HTML 2024年 9月 17日
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 2024年 2月 29日
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 2024年 1月 31日
White paper Understanding failure modes in isolators (Rev. B) PDF | HTML 2024年 1月 29日
Application note Digital Isolator Design Guide (Rev. G) PDF | HTML 2023年 9月 13日
White paper Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) PDF | HTML 2023年 9月 7日
White paper Circuit Board Insulation Design According to IEC60664 for Motor Drive Apps PDF | HTML 2023年 8月 31日
Application note Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) PDF | HTML 2023年 5月 16日
Certificate CQC Certificate for ISOxxDBQ (Rev. A) 2023年 3月 27日
Certificate CQC Certificate for ISOxxDWx (Rev. J) 2023年 3月 27日
Certificate CSA Certificate for ISO77xxDW 2023年 3月 13日
Certificate CSA Certificate for ISO77xxDBQ 2023年 3月 3日
Application note IEC60601-1-2 Compliant Dig. Iso Design W/ 16-kV Contact Discharge ESD Protection PDF | HTML 2023年 2月 16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
Application note Introduction to HVDC Architecture and Solutions for Control and Protection (Rev. B) PDF | HTML 2021年 9月 7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
White paper 為太陽能電網增添儲能功能的四項 重要設計考量 2021年 5月 5日
EVM User's guide Universal Digital Isolator Evaluation Module PDF | HTML 2021年 3月 4日
Technical article Understand and apply safety-limiting values for digital isolators PDF | HTML 2021年 1月 20日
Application brief Converting SPI to GPIO Through Digital Isolators PDF | HTML 2020年 10月 16日
White paper Signal and Power Isolation Considerations for Compact, Efficient Analog Input PDF | HTML 2020年 10月 5日
Application note Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) PDF | HTML 2020年 9月 2日
Application brief What is EMC? 4 Questions About EMI, Radiated Emissions, ESD and EFT in Isolated PDF | HTML 2020年 7月 21日
Functional safety information ISO7741-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA 2020年 6月 18日
Functional safety information Isolation in AC Motor Drives: Understanding the IEC 61800-5-1 Safety Standard (Rev. A) 2019年 9月 19日
Technical article What are isolated digital inputs? PDF | HTML 2019年 3月 8日
Technical article Top 9 design questions about digital isolators PDF | HTML 2019年 2月 4日
Application note Industrial data-acquisition interfaces with digital isolators (Rev. A) 2018年 10月 2日
Technical article Interfacing multiple ADCs to a single processor for grid protection and control PDF | HTML 2018年 9月 13日
Application brief Considerations for Selecting Digital Isolators 2018年 7月 24日
Analog Design Journal How to reduce radiated emissions of digital isolators for systems with RF module 2018年 3月 26日
Application note Isolation Glossary (Rev. A) 2017年 9月 19日
Analog Design Journal How to use isolation to improve ESD, EFT and surge immunity in industrial system 2017年 7月 24日
Application brief Reducing System Cost, Size and Power in Isolated DAQ Systems Using ADS122U04 (Rev. A) 2017年 6月 15日
User guide ISO77xxDBQ Triple- and Quad-Digital Isolator Evaluation Module 2016年 6月 2日
User guide ISO77xx Triple/Quad Digital Isolator Evaluation Module User's Guide 2016年 5月 5日

設計與開發

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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

ISO7741DBQEVM — EMC 性能優異的 ISO7741DBQ 高速四通道數位隔離器評估模組

ISO7741DBQEVM is an Evaluaiton Module used to evaluate the high performance, reinforced quad channel digital isolator ISO7741 in 16-Pin SSOP package (Package Code-DBQ). The EVM features enough test points & jumper options for one to evaluate the device with minimal external components.
使用指南: PDF
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開發板

ISO7741EVM — EMC 性能優異的 ISO7741 高速四通道數位隔離器評估模組

The ISO7741EVM is an evaluaiton module (EVM) to evaluate the ISO7741. The ISO7741 is a high-performance, reinforced quad-channel digital isolator in a wide-body SOIC package (package code DW). The EVM features enough test points and jumber options for you to evaluate the (...)
使用指南: PDF
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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 2 對、3 類、8 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。

模擬型號

ISO7741 IBIS Model (Rev. A)

SLLM311A.ZIP (62 KB) - IBIS Model
模擬型號

ISO7741 PSpice Transient Model

SLLM465.ZIP (1 KB) - PSpice Model

許多 TI 參考設計包含 ISO7741

使用我們的參考設計選擇工具,以檢視並找出最適合您的應用和參數的設計。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (DW) 16 Ultra Librarian
SSOP (DBQ) 16 Ultra Librarian

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