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ISO7740

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增強 4 通道、4/0、數位隔離器

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最新 ISO6440 現行 強大 EMC、強化型/基本型 4 通道、具備 250kV/us CMTI 的 4/0 數位隔離器、150Mbps Pin-to-pin cost-effective solution; 250kV/us CMTI and 150 Mbps that supports most digital isolation applications

ISO7740

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 4 forward / 0 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM 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) 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) 0.775 Current consumption per channel (1 Mbps) (typ) (mA) 1.375 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 4 forward / 0 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM 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) 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) 0.775 Current consumption per channel (1 Mbps) (typ) (mA) 1.375 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
    • For Ultra-wide package options, supporting >21.2mm Creepage, refer to ISO7741U and ISO7742U
    • For smaller, cost-optimized packages (up to 50% smaller for reinforced isolation), further improved noise immunity (up to 250kV/us CMTI) and higher data rate support (up to 150Mbps), refer to ISO644x
  • 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
    • For Ultra-wide package options, supporting >21.2mm Creepage, refer to ISO7741U and ISO7742U
    • For smaller, cost-optimized packages (up to 50% smaller for reinforced isolation), further improved noise immunity (up to 250kV/us CMTI) and higher data rate support (up to 150Mbps), refer to ISO644x
  • 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. K) PDF | HTML 2026/8/11
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
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 TUV Certificate for Isolation Devices (Rev. M) 2026/5/7
證書 CSA Certificate for ISO77xxDBQ (Rev. B) 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 ISOxxDBQ (Rev. B) 2025/8/19
證書 CQC Certificate for ISOxxDWx (Rev. K) 2025/8/18
應用說明 Digital Isolator Design Guide (Rev. G) PDF | HTML 2023/9/13
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
功能安全資訊 ISO7740-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020/6/18
應用說明 Industrial data-acquisition interfaces with digital isolators (Rev. A) 2018/10/2
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
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

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 — 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。
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

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。
使用指南: PDF
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模擬型號

ISO7740 IBIS Model (Rev. A)

SLLM310A.ZIP (62 KB) - IBIS 模型
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模擬型號

ISO7740 PSpice Transient Model

SLLM471.ZIP (245 KB) - PSpice 模型
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參考設計

PMP40690 — 使用 C2000 ™ MCU 和 GaN 的 4-kW 交錯 CCM 圖騰柱無橋接 PFC 參考設計

此參考設計為 4 kW 交錯 CCM 圖騰柱 (TTPL) 無橋接 PFC 參考設計，使用 64 針腳 C2000™ 微控制器、LM3410 氮化鎵裝置和 TMCS1100 霍爾感測器。其以使用 C2000™ MCU 的 TIDM-02008 雙向交錯 CCM TTPL 無橋接 PFC 參考設計為基礎，並將總 PCB 尺寸縮減至 145 mm x 105 mm x 35 mm。在功率級中使用氮化鎵 (GaN) 裝置，可實現 98.73% 的峰值效率。此設計包含進階功能，例如切相、適應性失效時間、用以改善負載範圍內 PF (...)
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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-010085 — 使用數位隔離器的 24-VAC 多通道固態繼電器參考設計

此參考設計展示使用單一隔離的多通道固態繼電器 (SSR)。此設計採用含單一隔離式電源供應器與通用接地閘極驅動電路的多通道數位隔離器，以獨立控制多個 SSR。此設計適用 24-VAC 供電繼電器，額定電流可達 2A，但可擴充至 240VAC 和更高的額定電流。每個 SSR 通道消耗的空間小於 75-mm2，組件的最大高度約爲 3-mm，與機電繼電器相比，可大幅節省尺寸。使用單一隔離式電源可減少機板空間及 BOM 成本。
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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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