可提供此产品的新版本

open-in-new 产品比较
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 Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range, better immunity and robustness

产品详细信息

Integrated isolated power No Number of channels (#) 1 Forward/reverse channels 1/0 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 150 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 4.3 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 17
Integrated isolated power No Number of channels (#) 1 Forward/reverse channels 1/0 Isolation rating (Vrms) 2500 Data rate (Max) (Mbps) 150 Rating Catalog Surge voltage capability (Vpk) 4000 Current consumption per channel (DC) (Typ) (mA) 4.3 Operating temperature range (C) -40 to 125 Default output High Supply voltage (Max) (V) 5 Supply voltage (Min) (V) 3.3 Propagation delay (Typ) (ns) 17
SOIC (D) 8 19 mm² 3.91 x 4.9
  • 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

技术文档

star = TI 精选相关文档
未找到结果。请清除搜索,并重试。
显示全部 18 项
类型 标题 下载最新的英文版本 日期
* 数据表 ISO72x Single Channel High-Speed Digital Isolators 数据表 (Rev. L) 2015年 10月 19日
用户指南 通用数字隔离器评估模块 下载英文版本 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 2021年 9月 27日
应用手册 数字隔离器设计指南 (Rev. C) 下载英文版本 (Rev.C) 2021年 8月 11日
证书 VDE Certificate for Basic Isolation for DIN VDE V 0884-11:2017-01 (Rev. S) 2021年 8月 3日
证书 CSA Certification (Rev. Q) 2021年 6月 14日
白皮书 通过使用数字隔离器替代光耦合器改善系统性能 (Rev. A) 下载英文版本 (Rev.A) 2021年 4月 6日
证书 UL Certification (Rev. O) 2021年 2月 3日
技术文章 How to select the right digital isolator for your design 2020年 10月 21日
技术文章 Why signal isolation matters in 48-V HEV/EV systems 2019年 11月 20日
技术文章 Staying on budget: How digital isolators are transforming field transmitters 2019年 5月 24日
技术文章 What are isolated digital inputs? 2019年 3月 8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
应用手册 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
用户指南 ISO72XEVM 2006年 1月 14日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

评估板

DIGI-ISO-EVM — Universal digital isolator evaluation module

DIGI-ISO-EVM 是一个评估模块,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 NB SOIC (D)、8 引脚 WB SOIC (DWV)、16 引脚 WB SOIC (DW)、16 引脚 Ultra WB 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。

现货
数量限制: 5
仿真模型

ISO72x IBIS Model (Rev. A)

SLLC282A.ZIP (15 KB) - IBIS Model
参考设计

PMP3799 — 36Vdc-75Vdc 输入、20V/4A 输出有源钳位正向

The PMP3799 reference design provides an adjustible 20V output at 4A from a standard 48V telecom input with greater than 93% efficiency. This design uses the UCC2897A active clamp controller along with an ISO721 digital isolator and TPS28225 to drive synchronous rectifiers. The output voltage can be (...)
参考设计

PMP4844 — Active Clamp Forward for Communications & Telecom

PMP4844 参考设计可通过标准 48V 电信输入提供 24V(120W 时),功率达到 94% 以上。此设计使用 UCC2897A 有源钳位控制器和 ISO721 数字隔离器及 TPS28225 驱动同步整流器。该电路内置行业标准半砖型封装。
封装 引脚 下载
SOIC (D) 8 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

推荐产品的参数、评估模块或参考设计可能与此 TI 产品相关

支持与培训

视频