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數位隔離器

ISO6721

現行

2-channel, 1/1, digital isolator with 50Mbps and 1.8V logic support

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
最新 ISO6421 現行 Robust EMC, reinforced/Basic 2-channel, 1/1, 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
功能相同，但針腳輸出與所比較的裝置不同。
ISO6521 現行 Ultra-small, galvanic 2-channel, 1/1, digital isolator with 50Mbps and 1.8V logic support Smaller package options with galvanic isolation

ISO6721

現行
立即訂購

產品詳細資料

Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 13.75 Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 18 Part-to-part output skew (max) (ns) 6 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 7 Channel-to-channel output skew (max) (ns) 6 Certifications CQC, CSA, DIN, TUV Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.5 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.1 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Features 1.8V I/O Data rate (max) (Mbps) 50 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 13.75 Propagation delay time (typ) (ns) 11 Propagation delay time (max) (ns) 18 Part-to-part output skew (max) (ns) 6 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 7 Channel-to-channel output skew (max) (ns) 6 Certifications CQC, CSA, DIN, TUV Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 450 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.5 CMTI (min) (kV/µs) 100 Default output High, Low Creepage (min) (mm) 4 Current consumption per channel (DC) (typ) (mA) 1 Current consumption per channel (1 Mbps) (typ) (mA) 1.1 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 4
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design: ISO6720, ISO6721
  • 50-Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 450 VRMS working voltage
    • Up to 3000 VRMS isolation rating
    • ±150 kV/µs typical CMTI
  • Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
  • 1.71-V to 5.5-V level translation
  • Default output High (ISO672xB) and Low (ISO672xFB) Options
  • Wide temperature range: –40°C to +125°C
  • 1.8 mA per channel typical at 1 Mbps
  • Low propagation delay: 11 ns typical
  • 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
  • Narrow-SOIC (D-8) package
  • Safety-Related Certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1
    • GB 4943.1
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design: ISO6720, ISO6721
  • 50-Mbps data rate
  • Robust isolation barrier:
    • High lifetime at 450 VRMS working voltage
    • Up to 3000 VRMS isolation rating
    • ±150 kV/µs typical CMTI
  • Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V
  • 1.71-V to 5.5-V level translation
  • Default output High (ISO672xB) and Low (ISO672xFB) Options
  • Wide temperature range: –40°C to +125°C
  • 1.8 mA per channel typical at 1 Mbps
  • Low propagation delay: 11 ns typical
  • 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
  • Narrow-SOIC (D-8) package
  • Safety-Related Certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1
    • GB 4943.1

The ISO672xB devices are high-performance, dual-channel digital isolators ideal for cost sensitive applications requiring up to 3000 VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO672xB 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 TI’s double capacitive silicon dioxide (SiO2) insulation barrier. The ISO6720B device has 2 isolation channels with both channels in the same direction. The ISO6721B device has 2 isolation channels with 1 channel in each direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See 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 UART, SPI, RS-485, RS-232, and CAN from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO672xB devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO672xB family of devices is available in a 8-pin SOIC narrow-body (D) package and is a pin-to-pin upgrade to the older generations. For reinforced isolation requirements, refer to the ISO672x-Q1.

The ISO672xB devices are high-performance, dual-channel digital isolators ideal for cost sensitive applications requiring up to 3000 VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO672xB 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 TI’s double capacitive silicon dioxide (SiO2) insulation barrier. The ISO6720B device has 2 isolation channels with both channels in the same direction. The ISO6721B device has 2 isolation channels with 1 channel in each direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See 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 UART, SPI, RS-485, RS-232, and CAN from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO672xB devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO672xB family of devices is available in a 8-pin SOIC narrow-body (D) package and is a pin-to-pin upgrade to the older generations. For reinforced isolation requirements, refer to the ISO672x-Q1.
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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 ISO672x General Purpose Basic Dual-Channel Digital Isolators with Robust EMC datasheet (Rev. F) PDF | HTML 2023/1/4
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
證書 VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) 2026/6/11
證書 CSA Certificate for ISO672xDWV (Rev. A) 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
證書 CQC Certificate for ISOxxD (Rev. B) 2025/8/19
證書 CQC Certificate for ISOxxDWV (Rev. B) 2025/8/19
證書 CSA Certificate for ISO672xD 2023/3/14
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 Replace Optocouplers with Digital Isolators in Standard Interface Circuit (Rev. A) PDF | HTML 2021/5/19
功能安全資訊 ISO6721/ISO6721-Q1 Functional Safety FIT Rate, FMD and Pin FMA 2021/3/19
證書 ISO6721DEVM EU Declaration of Conformity (DoC) 2020/7/31
技術文章 Top 9 design questions about digital isolators PDF | HTML 2019/2/4

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

ISO6721DEVM — ISO672x 通用雙通道數位隔離器評估模組

ISO6721DEVM 是用於評估採用 8 針腳 SOIC 封裝 (封裝代碼 D) 的低速、通用、穩健 EMC 雙通道數位隔離器 ISO6721 的評估模組。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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模擬型號

ISO6721 PSpice Transient Model

SLLM468.ZIP (413 KB) - PSpice 模型
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模擬型號

ISO6721 IBIS Model (Rev. A)

SLLM456A.ZIP (80 KB) - IBIS 模型
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參考設計

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參考設計

TIDA-010265 — 採用 C2000™ MCU 和 MSPM0 的 750W 馬達逆變器參考設計

此參考設計是用於洗衣機或類似設備的 750W 馬達驅動器，展示了一種使用磁通、角度、速度和扭矩觀察器 (FAST) 軟體編碼器或增強型滑動模式觀察器 (eSMO) 實現三相永磁同步馬達 (PMSM) 的無感測器磁場定向控制 (FOC) 的方法。此參考設計採用模組化設計，可在同一主機板上同時支援 C2000™ 微控制器 (MCU) 和 MSPM0 MCU 子板。此參考設計提供的軟硬體皆經過測試且隨時可用，有助於加快開發至上市時間。硬體設計詳細資訊和測試結果可在設計指南中找到。

MathWorks (...)

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參考設計

TIDA-010273 — 250W 馬達逆變器參考設計

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參考設計

TIDA-010282 — 1.3kW GaN 圖騰柱功率因數校正和馬達逆變器參考設計

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