可提供此產品的更新版本

open-in-new 比較替代產品
功能優于所比較器件的普遍直接替代產品
ISO7721 正在供貨 EMC 性能優異的雙通道、1/1、增強型數字隔離器 Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range and better immunity

產品詳情

Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Default output High Data rate (max) (Mbps) 1 Surge isolation voltage (VIOSM) (VPK) 5200 Transient isolation voltage (VIOTM) (VPK) 6000 Withstand isolation voltage (VISO) (Vrms) 4200 CMTI (min) (V/μs) 25000 Operating temperature range (°C) -40 to 105 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (μs) 0.009 Current consumption per channel (DC) (typ) (mA) 1.5 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Creepage (min) (mm) 8 Clearance (min) (mm) 8
Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Default output High Data rate (max) (Mbps) 1 Surge isolation voltage (VIOSM) (VPK) 5200 Transient isolation voltage (VIOTM) (VPK) 6000 Withstand isolation voltage (VISO) (Vrms) 4200 CMTI (min) (V/μs) 25000 Operating temperature range (°C) -40 to 105 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (μs) 0.009 Current consumption per channel (DC) (typ) (mA) 1.5 Current consumption per channel (1 Mbps) (typ) (mA) 1.5 Creepage (min) (mm) 8 Clearance (min) (mm) 8
SOIC (DW) 16 106.09 mm2 10.3 x 10.3
  • Highest Signaling Rate: 1 Mbps
  • Propagation Delay Less Than 20 ns
  • Low-Power Consumption
  • Wide Ambient Temperature: –40°C to 105°C
  • 50 kV/μs Transient Immunity Typical
  • Operates From 3.3-V or 5-V Supply and Logic
    Levels
  • 3.3-V and 5.0-V Level Translation
  • Safety and Regulatory Approvals
    • 6000 VPK Isolation per DIN V VDE V 0884-10
      and DIN EN 61010-1
    • 4243 VRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC
      60950-1, IEC 61010-1, and IEC 60601-1 End
      Equipment Standards
    • TUV 5000 VRMS Isolation per EN 60950-1 and
      EN 61010-1
    • CQC Certification per GB4943.1-2011
  • APPLICATIONS
    • Opto-Coupler Replacement in:
      • Industrial Field-Buses
        • ProfiBuses
        • ModBuses
        • DeviceNet? Data Buses
      • Servo Control Interfaces
      • Motor Control
      • Power Supplies
      • Battery Packs

All other trademarks are the property of their respective owners

  • Highest Signaling Rate: 1 Mbps
  • Propagation Delay Less Than 20 ns
  • Low-Power Consumption
  • Wide Ambient Temperature: –40°C to 105°C
  • 50 kV/μs Transient Immunity Typical
  • Operates From 3.3-V or 5-V Supply and Logic
    Levels
  • 3.3-V and 5.0-V Level Translation
  • Safety and Regulatory Approvals
    • 6000 VPK Isolation per DIN V VDE V 0884-10
      and DIN EN 61010-1
    • 4243 VRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC
      60950-1, IEC 61010-1, and IEC 60601-1 End
      Equipment Standards
    • TUV 5000 VRMS Isolation per EN 60950-1 and
      EN 61010-1
    • CQC Certification per GB4943.1-2011
  • APPLICATIONS
    • Opto-Coupler Replacement in:
      • Industrial Field-Buses
        • ProfiBuses
        • ModBuses
        • DeviceNet? Data Buses
      • Servo Control Interfaces
      • Motor Control
      • Power Supplies
      • Battery Packs

All other trademarks are the property of their respective owners

The ISO7520C and ISO7521C provide galvanic isolation of up to 4243 VRMS for 1 minute per UL and 6000 VPK per VDE. These devices are also certified to 5000 VRMS reinforced insulation per end equipment standards IEC 60950-1, IEC 61010-1, and IEC 60601-1. These digital isolators have two isolated channels with unidirectional (ISO7520C) and bidirectional (ISO7521C) channel configurations. Each isolation channel has a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 3.3- and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V supplies.

NOTE: The ISO7520C and ISO7521C are specified for signaling rates up to 1 Mbps. Due to their fast response time, these devices will also transmit faster data with much shorter pulse widths. Designers must add external filtering to remove spurious signals with input pulse duration < 20 ns, if desired.

The ISO7520C and ISO7521C provide galvanic isolation of up to 4243 VRMS for 1 minute per UL and 6000 VPK per VDE. These devices are also certified to 5000 VRMS reinforced insulation per end equipment standards IEC 60950-1, IEC 61010-1, and IEC 60601-1. These digital isolators have two isolated channels with unidirectional (ISO7520C) and bidirectional (ISO7521C) channel configurations. Each isolation channel has a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 3.3- and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V supplies.

NOTE: The ISO7520C and ISO7521C are specified for signaling rates up to 1 Mbps. Due to their fast response time, these devices will also transmit faster data with much shorter pulse widths. Designers must add external filtering to remove spurious signals with input pulse duration < 20 ns, if desired.

下載 觀看帶字幕的視頻 視頻

技術文檔

star =有關此產品的 TI 精選熱門文檔
未找到結果。請清除搜索并重試。
查看全部 12
類型 標題 下載最新的英語版本 日期
* 數據表 ISO752xC Low-Power 5 kVRMS Dual-Channel Digital Isolators 數據表 (Rev. E) PDF | HTML 2015年 5月 27日
白皮書 通過使用數字隔離器替代光耦合器改善系統性能 (Rev. D) PDF | HTML 英語版 (Rev.D) PDF | HTML 2025年 11月 13日
證書 VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. Y) 2025年 8月 20日
證書 CSA Certificate for ISO752xDW ISO7421E-Q1DW 2023年 3月 15日
證書 CQC Certificate for ISO752xDW, ISO76xxDW (Rev. A) 2023年 2月 7日
證書 ISO76x, ISO75xx TUV Certificate 2022年 8月 8日
證書 UL Certificate of Compliance File E181974 Vol 4 Sec 3 2022年 8月 8日
白皮書 Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021年 11月 16日
用戶指南 通用數字隔離器評估模塊 PDF | HTML 英語版 PDF | HTML 2021年 9月 28日
白皮書 絕緣穿透距離:數字隔離器如何滿足認證要求 英語版 PDF | HTML 2021年 9月 27日
應用簡報 Considerations for Selecting Digital Isolators 2018年 7月 24日
應用手冊 所選封裝材料的熱學和電學性質 2008年 10月 16日

設計和開發

如需其他信息或資源,請點擊以下任一標題進入詳情頁面查看(如有)。

評估板

DIGI-ISO-EVM — 通用數字隔離器評估模塊

DIGI-ISO-EVM 是一個評估模塊 (EVM),用于評估 TI 采用以下五種不同封裝的任何單通道、雙通道、三通道、四通道或六通道數字隔離器器件:8 引腳窄體 SOIC (D)、8 引腳寬體 SOIC (DWV)、16 引腳寬體 SOIC (DW)、16 引腳超寬體 SOIC (DWW) 和 16 引腳 QSOP (DBQ) 封裝。此 EVM 具有足夠的 Berg 引腳選項,支持使用超少的外部元件來評估相應器件。

用戶指南: PDF | HTML
英語版: PDF | HTML
TI.com 上無現貨
仿真模型

ISO7421 IBIS Model (Rev. A)

SLOM200A.ZIP (28 KB) - IBIS Model
封裝 引腳 CAD 符號、封裝和 3D 模型
SOIC (DW) 16 Ultra Librarian

訂購和質量

包含信息:
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息:
  • 制造廠地點
  • 封裝廠地點

推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。

支持和培訓

視頻