ZHCSNF0B May   2018  – October 2021 ISOW1412 , ISOW1432

PRODMIX  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1  Absolute Maximum Ratings
    2. 8.2  Recommended Operating Conditions
    3. 8.3  Thermal Information
    4. 8.4  Power Ratings
    5. 8.5  Insulation Specifications
    6. 8.6  Safety-Related Certifications
    7. 8.7  Safety Limiting Values
    8. 8.8  Electrical Characteristics
    9. 8.9  Supply Current Characteristics at VISOOUT = 3.3 V
    10. 8.10 Supply Current Characteristics at  VISOOUT = 5 V
    11. 8.11 Switching Characteristics at VISOOUT = 3.3 V
    12. 8.12 Switching Characteristics at VISOOUT = 5 V
    13. 8.13 Insulation Characteristics Curves
    14. 8.14 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Power Isolation
    3. 10.3 Signal Isolation
    4. 10.4 RS-485
    5. 10.5 Functional Block Diagram
    6. 10.6 Feature Description
      1. 10.6.1 Power-Up and Power-Down Behavior
      2. 10.6.2 Protection Features
      3. 10.6.3 Failsafe Receiver
      4. 10.6.4 Glitch-Free Power Up and Power Down
    7. 10.7 Device Functional Modes
    8. 10.8 Device I/O Schematics
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
        1. 11.2.2.1 Data Rate, Bus Length and Bus Loading
        2. 11.2.2.2 Stub Length
        3. 11.2.2.3 Insulation Lifetime
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Documentation Support
      1. 14.1.1 Related Documentation
    2. 14.2 Receiving Notification of Documentation Updates
    3. 14.3 支持资源
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 术语表
  15. 15Mechanical, Packaging, and Orderable Information

3 说明

ISOW14x2 器件是 电隔离 RS-485/RS-422 收发器，内置隔离式直流/直流转换器，无需在空间受限的隔离式设计中使用单独的隔离式电源。低辐射、隔离式直流/直流转换器符合 CISPR 32 辐射发射 B 类标准，在简单的两层 PCB 上仅使用两个铁氧体磁珠。额外的 20mA 输出电流可用于为板上的其他电路供电。集成的 2Mbps GPIO 通道有助于去除用于诊断、LED 指示或电源监控的任何额外数字隔离器或光耦合器。

器件信息
特性 ISOW1412
ISOW1432		 ISOW1412B
ISOW1432B
保护级别 增强版 基本版
浪涌测试电压 10kVPK 7.8kVPK
隔离额定值 5000VRMS 5000VRMS
工作电压 1000VRMS/1500VPK 1000VRMS/1500VPK
封装(1) DFM (20) DFM (20)
封装尺寸 12.83mm x 7.5mm 12.83mm x 7.5mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购米6体育平台手机版_好二三四附录。
GUID-20210511-CA0I-2J7H-GHG5-V2LBS3TMK2X3-low.gif简化版原理图
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