ISO7241A 不推荐用于新设计。
现仍在生产的该产品仅用于支持当前还在使用的客户。请考虑以下其中一个替代产品:
功能与比较器件相同且具有相同引脚。
ISO7741 正在供货 EMC 性能优异的四通道、3/1、增强型数字隔离器 Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range and better immunity and robustness

产品详细信息

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  • 4000-Vpeak Isolation, 560-Vpeak VIORM
    • UL 1577 , IEC 60747-5-2 (VDE 0884, Rev 2),
      IEC 61010-1, IEC 60950-1 and CSA Approved
  • 4 kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • Typical 25-Year Life at Rated Working Voltage
    (See Application Note (SLLA197) and Figure 10)
  • High Electromagnetic Immunity
    (See Application Report (SLLA181))
  • –40°C to 125°C Operating Range
  • APPLICATIONS
    • Industrial Fieldbus
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

  • 4000-Vpeak Isolation, 560-Vpeak VIORM
    • UL 1577 , IEC 60747-5-2 (VDE 0884, Rev 2),
      IEC 61010-1, IEC 60950-1 and CSA Approved
  • 4 kV ESD Protection
  • Operate With 3.3-V or 5-V Supplies
  • Typical 25-Year Life at Rated Working Voltage
    (See Application Note (SLLA197) and Figure 10)
  • High Electromagnetic Immunity
    (See Application Report (SLLA181))
  • –40°C to 125°C Operating Range
  • APPLICATIONS
    • Industrial Fieldbus
    • Computer Peripheral Interface
    • Servo Control Interface
    • Data Acquisition

See the Product Notification section. The ISO7240A, ISO7241A and ISO7242A are quad-channel digital isolators with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240A has all four channels in the same direction while the ISO7241A has three channels the same direction and one channel in opposition. The ISO7242A has two channels in each direction.

The devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device.

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, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (See ISO7240CF (SLLS869) or contact TI for a logic low failsafe option).

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

See the Product Notification section. The ISO7240A, ISO7241A and ISO7242A are quad-channel digital isolators with multiple channel configurations and output enable functions. These devices have logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

The ISO7240A has all four channels in the same direction while the ISO7241A has three channels the same direction and one channel in opposition. The ISO7242A has two channels in each direction.

The devices have TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device.

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, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (See ISO7240CF (SLLS869) or contact TI for a logic low failsafe option).

These devices may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.

These devices are characterized for operation over the ambient temperature range of –40°C to 125°C.

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技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 1-Mbps QUAD DIGITAL ISOLATORS 数据表 (Rev. E) 2010年 1月 27日
应用手册 Digital Isolator Design Guide (Rev. D) 2021年 11月 15日
应用手册 数字隔离器设计指南 (Rev. C) 下载最新的英文版本 (Rev.D) 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
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 Considerations for Selecting Digital Isolators 2018年 7月 24日
用户指南 Triple- and Quad-Channel Digital Isolator EVM (Rev. A) 2011年 9月 27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

DDC2256AEVM — DDC2256A 256 通道电流输入模数转换器评估模块

DDC2256AEVM 评估模块 (EVM) 是一款评估套件,适用于 256 通道的电流输入 24 位模数 (A/D) 转换器 DDC2256A。该 EVM 套件由 DUT 板和采集板组成,包括 2 个 DDC2256A 器件、1 个用于器件通信/配置的 FPGA、用于存储临时数据的 36MB 内存,以及 1 个用于连接 PC 的 USB 接口。该 EVM 包括所有必要的控制信号和板载电力生成,极大地降低了对外部设备的需求。最后,该评估系统还包括适用于 Microsoft® Windows® 的易于使用的软件。

仿真模型

ISO7241 IBIS Model (Rev. C)

SLLC340C.ZIP (13 KB) - IBIS Model
封装 引脚 下载
SOIC (DW) 16 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

支持与培训

视频