可提供此产品的更新版本

open-in-new 比较替代产品
功能优于比较器件,可直接替换
ISO7710 正在供货 EMC 性能优异的单通道、增强型数字隔离器 Higher isolation rating and higher CMTI

产品详情

Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 1 Forward/reverse channels 1 forward / 0 reverse Default output High Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.017 Current consumption per channel (DC) (typ) (mA) 4.3 Creepage (min) (mm) 6 Clearance (min) (mm) 6
Rating Catalog Integrated isolated power No Isolation rating Basic Number of channels 1 Forward/reverse channels 1 forward / 0 reverse Default output High Data rate (max) (Mbps) 100 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (V/µs) 25000 Operating temperature range (°C) -40 to 125 Supply voltage (max) (V) 5 Supply voltage (min) (V) 3.3 Propagation delay time (typ) (µs) 0.017 Current consumption per channel (DC) (typ) (mA) 4.3 Creepage (min) (mm) 6 Clearance (min) (mm) 6
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 100 and 150-Mbps Signaling Rate Options
  • Low Propagation Delay
  • Low Pulse Skew
  • Low-Power Sleep Mode
  • High Electromagnetic Immunity
  • Low Input-Current Requirement
  • Failsafe Output
  • Drop-In Replacement for Most Opto and Magnetic
    Isolators
  • Operates from 3.3 V and 5 V Supplies
  • –40°C to 125°C Operating Temperature Range
  • 50 kV/µs Transient Immunity, Typical
  • Safety and Regulatory Approvals
    • VDE Basic Insulation with 4000-VPK VIOTM,
      560 VPK VIORM
    • 2500 VRMS Isolation per UL 1577
    • CSA Approved for Component Acceptance
      Notice 5A and IEC 60950-1
  • APPLICATIONS
    • Industrial Fieldbus
      • Modbus
      • Profibus
      • DeviceNet™ Data Buses
      • Smart Distributed Systems (SDS™)
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

All other trademarks are the property of their respective owners

  • 100 and 150-Mbps Signaling Rate Options
  • Low Propagation Delay
  • Low Pulse Skew
  • Low-Power Sleep Mode
  • High Electromagnetic Immunity
  • Low Input-Current Requirement
  • Failsafe Output
  • Drop-In Replacement for Most Opto and Magnetic
    Isolators
  • Operates from 3.3 V and 5 V Supplies
  • –40°C to 125°C Operating Temperature Range
  • 50 kV/µs Transient Immunity, Typical
  • Safety and Regulatory Approvals
    • VDE Basic Insulation with 4000-VPK VIOTM,
      560 VPK VIORM
    • 2500 VRMS Isolation per UL 1577
    • CSA Approved for Component Acceptance
      Notice 5A and IEC 60950-1
  • APPLICATIONS
    • Industrial Fieldbus
      • Modbus
      • Profibus
      • DeviceNet™ Data Buses
      • Smart Distributed Systems (SDS™)
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

All other trademarks are the property of their respective owners

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 VPK per VDE. 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.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

If this dc-refresh pulse is not received for more than 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic-high state.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates from 0 Mbps (DC) to 100 Mbps for the ISO721 and the ISO722 devices, and 0 Mbps to 150 Mbps with the ISO721M and the ISO722M devices.

These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4 mA CMOS.

The ISO722 and ISO722M devices include an active-low output enable that when driven to a high logic level, places the output in a high-impedance state and turns off internal bias circuitry to conserve power.

Both the ISO721 and ISO722 devices have TTL input thresholds and a noise filter at the input that prevent transient pulses of up to 2 ns in duration from being passed to the output of the device.

The ISO721M and ISO722M devices have CMOS VCC / 2 input thresholds, but do not have the noise-filter and the additional propagation delay. These features of the ISO721M device also provide for reduced-jitter operation.

The ISO721, ISO721M, ISO722, and ISO722M devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

The ISO721, ISO721M, ISO722, and ISO722M are digital isolators with a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. This barrier provides galvanic isolation of up to 4000 VPK per VDE. 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.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

If this dc-refresh pulse is not received for more than 4 µs, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic-high state.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching, and allows fast transient voltage changes between the input and output grounds without corrupting the output. The small capacitance and resulting time constant provide for fast operation with signaling rates from 0 Mbps (DC) to 100 Mbps for the ISO721 and the ISO722 devices, and 0 Mbps to 150 Mbps with the ISO721M and the ISO722M devices.

These devices require two supply voltages of 3.3 V, 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply and all outputs are 4 mA CMOS.

The ISO722 and ISO722M devices include an active-low output enable that when driven to a high logic level, places the output in a high-impedance state and turns off internal bias circuitry to conserve power.

Both the ISO721 and ISO722 devices have TTL input thresholds and a noise filter at the input that prevent transient pulses of up to 2 ns in duration from being passed to the output of the device.

The ISO721M and ISO722M devices have CMOS VCC / 2 input thresholds, but do not have the noise-filter and the additional propagation delay. These features of the ISO721M device also provide for reduced-jitter operation.

The ISO721, ISO721M, ISO722, and ISO722M devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 14
类型 标题 下载最新的英语版本 日期
* 数据表 ISO72x Single Channel High-Speed Digital Isolators 数据表 (Rev. L) PDF | HTML 2015年 10月 19日
证书 VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 2024年 1月 31日
白皮书 Technical White Paper 通过使用数字隔离器替代光耦合器改善系统性能 Koteshwar RaoIsolation Products Appl (Rev. C) PDF | HTML 下载英文版本 (Rev.C) PDF | HTML 2023年 9月 26日
应用手册 数字隔离器设计指南 (Rev. G) PDF | HTML 下载英文版本 (Rev.G) PDF | HTML 2023年 9月 20日
证书 CSA Certificate for ISO72xD 2023年 2月 21日
证书 UL Certificate of Compliance File E181974 Vol 3 Sec 1 2022年 8月 8日
白皮书 Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021年 11月 16日
用户指南 通用数字隔离器评估模块 PDF | HTML 下载英文版本 PDF | HTML 2021年 9月 28日
白皮书 绝缘穿透距离:数字隔离器如何满足认证要求 下载英文版本 PDF | HTML 2021年 9月 27日
应用手册 ISO72x Digital Isolator Magnetic-Field Immunity (Rev. B) 2018年 8月 7日
应用手册 High-Voltage Lifetime of the ISO72x Family of Digital Isolators (Rev. A) 2018年 8月 1日
应用手册 The ISO72x Family of High-Speed Digital Isolators (Rev. A) 2018年 8月 1日
应用简报 Considerations for Selecting Digital Isolators 2018年 7月 24日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日

设计和开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

DIGI-ISO-EVM — 通用数字隔离器评估模块

DIGI-ISO-EVM 是一个评估模块 (EVM),用于评估 TI 采用以下五种不同封装的任何单通道、双通道、三通道、四通道或六通道数字隔离器器件:8 引脚窄体 SOIC (D)、8 引脚宽体 SOIC (DWV)、16 引脚宽体 SOIC (DW)、16 引脚超宽体 SOIC (DWW) 和 16 引脚 QSOP (DBQ) 封装。此 EVM 具有足够的 Berg 引脚选项,支持使用超少的外部元件来评估相应器件。

用户指南: PDF | HTML
下载英文版本: PDF | HTML
TI.com 上无现货
仿真模型

ISO72x IBIS Model (Rev. A)

SLLC282A.ZIP (15 KB) - IBIS Model
封装 引脚 下载
SOIC (D) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频