首頁 隔離 數位隔離器
首頁
隔離
數位隔離器

ISO7821

現行

High voltage, reinforced 2-channel, 1/1, digital isolator with 2000VRMS VIOWM and 14.5mm creepage

立即訂購
產品規格表

ISO7821

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 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, UART Propagation delay time (typ) (ns) 10.7 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) 1.2 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 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 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 100 Protocols GPIO, PWM, UART Propagation delay time (typ) (ns) 10.7 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) 1.2 Current consumption per channel (1 Mbps) (typ) (mA) 1.8 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 8000 Clearance (min) (mm) 8, 14.5
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm) SOIC (DWW) 16 177.675 mm² (10.3 mm × 17.25 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 1.8mA 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: > 25 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 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 GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, TUV and Planned for VDE, CSA, and CQC
  • 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 1.8mA 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: > 25 Years
  • SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
  • Safety and Regulatory Approvals:
    • 8000VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 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 GB4943.1-2011
    • TUV Certification per EN 61010-1 and EN 60950-1
    • All DW Package Certifications Complete; DWW Package Certifications Complete per UL, TUV and Planned for VDE, CSA, and CQC

The ISO7821 is a high-performance, dual-channel digital isolator with 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 silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is ’high’ for the ISO7821 and ’low’ for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents 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 ISO7821 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes 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.

spacer

The ISO7821 is a high-performance, dual-channel digital isolator with 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 silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is ’high’ for the ISO7821 and ’low’ for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents 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 ISO7821 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes 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.

spacer
filter 尋找其它 數位隔離器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

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

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 21
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 ISO782 1 x High-Performance, 8000VPK Reinforced Dual Channel Digital Isolator datasheet (Rev. H) 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
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
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 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

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

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
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
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。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

ISO7821 IBIS Model (Rev. A)

SLLM266A.ZIP (52 KB) - IBIS 模型
支援產品和硬體
模擬型號

ISO7821F IBIS Model (Rev. B)

SLLM276A (52 KB) - IBIS 模型
支援產品和硬體
參考設計

TIDA-00785 — 隔離式 GaN 驅動器參考設計

本參考設計包含一個強化型雙通道數位隔離器、一個 GaN 閘極驅動器，以及隔離式電源供應器。此精巧的參考設計適用於控制電源供應器、DC-DC 轉換器、同步整流、太陽能逆變器與馬達控制中的 GaN 元件。閘極驅動器所使用的開迴路推拉式拓撲架構電源供應器皆可為 PCB 佈線提供更大的彈性。TIDA-00785 所採用的推拉式變壓驅動器運作頻率為 300kHz，有助於縮小隔離變壓器的體積，打造小巧的電源供應器解決方案。
支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (DW) 16 Ultra Librarian
SOIC (DWW) 16 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片