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适用于信号隔离器的电源
带有集成电源的信号隔离器

ISOW1432

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具有集成直流/直流转换器的低辐射、5kVrms、12Mbps 隔离式 RS-485 收发器

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ISOW1432

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产品详情

Rating Catalog Isolation rating Basic, Reinforced Data rate (max) (Mbps) 12 Working isolation voltage (VIOWM) (Vrms) 1000 Surge isolation voltage (VIOSM) (VPK) 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 100 Operating temperature range (°C) -40 to 125 Type RS-485
Rating Catalog Isolation rating Basic, Reinforced Data rate (max) (Mbps) 12 Working isolation voltage (VIOWM) (Vrms) 1000 Surge isolation voltage (VIOSM) (VPK) 10000 Transient isolation voltage (VIOTM) (VPK) 7071 Withstand isolation voltage (VISO) (Vrms) 5000 CMTI (min) (kV/µs) 100 Operating temperature range (°C) -40 to 125 Type RS-485
SOIC (DFM) 20 132.149 mm² (12.83 mm × 10.3 mm)
  • Meets or exceeds the requirements of the TIA/ EIA-485A standard
  • Data rates
    • ISOW1412 : 500 kbps
    • ISOW1432 : 12 Mbps
  • Integrated low-emissions DC-DC converter with low-emissions, low-noise
    • Meets CISPR 32 Class B and EN 55032 Class B with margin on a two-layer PCB
    • Low frequency power converter at 25 MHz enabling low noise performance
  • Additional 2 Mbps GPIO channel
  • High efficiency output power
    • Typical efficiency: 46%
    • VISOOUT accuracy: ±5%
    • Additional output current: 20 mA
  • Independent power supply for RS-485 & DC-DC
    • Logic supply (VIO): 1.71 V to 5.5 V
    • Power converter supply ( VDD): 3 V to 5.5 V
  • RS-485 with PROFIBUS compatibility
    • Open, short, and idle bus failsafe
    • 1/8 unit load: up to 256 nodes on bus
    • Glitch-free power up and power down
  • Reinforced and Basic isolation options
  • High CMTI: 100-kV/µs (typical)
  • High ESD bus protection
    • HBM: ±16 kV
    • IEC 61000-4-2 contact discharge: ±8 kV
  • Operating temperature range: -40°C to 125°C
  • Current limit and thermal shutdown
  • 20-pin wide SOIC package
  • Section 8.6:
    • VDE reinforced and basic insulation per DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications
  • Meets or exceeds the requirements of the TIA/ EIA-485A standard
  • Data rates
    • ISOW1412 : 500 kbps
    • ISOW1432 : 12 Mbps
  • Integrated low-emissions DC-DC converter with low-emissions, low-noise
    • Meets CISPR 32 Class B and EN 55032 Class B with margin on a two-layer PCB
    • Low frequency power converter at 25 MHz enabling low noise performance
  • Additional 2 Mbps GPIO channel
  • High efficiency output power
    • Typical efficiency: 46%
    • VISOOUT accuracy: ±5%
    • Additional output current: 20 mA
  • Independent power supply for RS-485 & DC-DC
    • Logic supply (VIO): 1.71 V to 5.5 V
    • Power converter supply ( VDD): 3 V to 5.5 V
  • RS-485 with PROFIBUS compatibility
    • Open, short, and idle bus failsafe
    • 1/8 unit load: up to 256 nodes on bus
    • Glitch-free power up and power down
  • Reinforced and Basic isolation options
  • High CMTI: 100-kV/µs (typical)
  • High ESD bus protection
    • HBM: ±16 kV
    • IEC 61000-4-2 contact discharge: ±8 kV
  • Operating temperature range: -40°C to 125°C
  • Current limit and thermal shutdown
  • 20-pin wide SOIC package
  • Section 8.6:
    • VDE reinforced and basic insulation per DIN VDE V 0884-11:2017-01
    • UL 1577 component recognition program
    • IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

The ISOW14x2 devices are galvanically-isolated RS-485/RS-422 transceiver s with a built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. The low-emissions, isolated DC-DC converter meets CISPR 32 radiated emissions Class B standard with just two ferrite beads on a simple two-layer PCB. Additional 20 mA output current can be used to power other circuits on the board. An integrated 2 Mbps GPIO channel helps remove any additional digital isolator or optocoupler for diagnotstics, LED indication or supply monitoring.

The ISOW14x2 devices are galvanically-isolated RS-485/RS-422 transceiver s with a built-in isolated DC-DC converter, that eliminates the need for a separate isolated power supply in space constrained isolated designs. The low-emissions, isolated DC-DC converter meets CISPR 32 radiated emissions Class B standard with just two ferrite beads on a simple two-layer PCB. Additional 20 mA output current can be used to power other circuits on the board. An integrated 2 Mbps GPIO channel helps remove any additional digital isolator or optocoupler for diagnotstics, LED indication or supply monitoring.
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ISOW1412 正在供货 具有集成电源的低辐射、500kbps、增强型隔离式 RS-485/RS-422 收发器 Drop-in replacement with higher data rate, 12-Mbps to the compared device.

技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 ISOW14x2 Isolated RS-485/RS-422 Transceiver with Integrated Low-Emissions, Low-Noise, High-Efficiency DC-DC Converter 数据表 (Rev. C) PDF | HTML 2022-2-28
* 用户指南 使用具有集成式电源的隔离式 RS-485 收发器优化您的设计 英语版 PDF | HTML 2021-6-17
证书 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026-7-15
证书 VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) 2026-6-11
证书 TUV Certificate for Isolation Devices (Rev. M) 2026-5-7
证书 UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 2026-5-7
应用简报 如何在 RS-485 系统中隔离信号和电源 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2025-11-14
证书 CQC Certificate for ISOxxDFM (Rev. B) 2025-8-19
证书 CSA Certificate for ISOW14xxDFM (Rev. A) 2023-2-15
产品概述 Isolation for RS-485 PDF | HTML 2022-8-21
应用简报 强大的隔离式 RS-485 支持全新工业应用 (Rev. C) PDF | HTML 英语版 (Rev.C) PDF | HTML 2022-8-18
白皮书 Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021-11-16
白皮书 绝缘穿透距离：数字隔离器如何满足认证要求 英语版 PDF | HTML 2021-9-27
应用简报 ISOW7741 如何符合 CISPR 32 辐射发射限制 PDF | HTML 英语版 PDF | HTML 2021-6-17
技术文章 4 common questions when isolating signal and power PDF | HTML 2021-6-1

设计与开发

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

ISOW1412DFMEVM — ISOW1412 具有集成直流/直流转换器的隔离式 RS-485/RS-422 收发器评估模块

ISOW1412DFMEVM 评估模块 (EVM) 用于评估 ISO1412 具有集成隔离式直流/直流电源、采用 20 引脚宽体 SOIC 封装（封装代码 - DFM）的高性能、增强型隔离式 RS-485/RS-422 收发器。此 EVM 具有足够的测试点和跳线选项，支持使用超少的外部元件来评估相应器件。

用户指南: PDF | HTML
支持的产品和硬件
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评估板

ISOW1432DFMEVM — ISOW1432 具有集成直流/直流转换器的隔离式 RS-485/RS-422 收发器评估模块

ISOW1432DFMEVM 评估模块 (EVM) 用于评估 ISOW1432 高性能、增强型隔离式 RS-485/RS-422 收发器，后者具有集成式直流/直流转换器并采用 20 引脚宽体 SOIC 封装（封装代码 - DFM）。此 EVM 具有足够的测试点和跳线选项，支持使用超少的外部元件来评估相应器件。

用户指南: PDF | HTML
支持的产品和硬件
有库存
限制：
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仿真模型

ISOW1432 IBIS Model

SLLM493.ZIP (94 KB) - IBIS 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (DFM) 20 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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