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  • AMC1304x 具有 LDO 的高精度、增强隔离式 Δ-Σ 调制器

    • ZHCSDX9E September   2014  – January 2017 AMC1304L05 , AMC1304L25 , AMC1304M05 , AMC1304M25

      PRODUCTION DATA.  

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  • AMC1304x 具有 LDO 的高精度、增强隔离式 Δ-Σ 调制器
  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configurations and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Power Ratings
    6. 7.6  Insulation Specifications
    7. 7.7  Safety-Related Certifications
    8. 7.8  Safety Limiting Values
    9. 7.9  Electrical Characteristics: AMC1304x05
    10. 7.10 Electrical Characteristics: AMC1304x25
    11. 7.11 Switching Characteristics
    12. 7.12 Insulation Characteristics Curves
    13. 7.13 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Analog Input
      2. 8.3.2 Modulator
      3. 8.3.3 Digital Output
    4. 8.4 Device Functional Modes
      1. 8.4.1 Fail-Safe Output
      2. 8.4.2 Output Behavior in Case of a Full-Scale Input
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Digital Filter Usage
    2. 9.2 Typical Applications
      1. 9.2.1 Frequency Inverter Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Isolated Voltage Sensing
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
      3. 9.2.3 Do's and Don'ts
  10. 10Power-Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  12. 12器件和文档支持
    1. 12.1 文档支持
      1. 12.1.1 相关文档　
    2. 12.2 相关链接
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13机械、封装和可订购信息
  14. 重要声明
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DATA SHEET

AMC1304x 具有 LDO 的高精度、增强隔离式 Δ-Σ 调制器

本资源的原文使用英文撰写。 为方便起见，TI 提供了译文；由于翻译过程中可能使用了自动化工具，TI 不保证译文的准确性。 为确认准确性，请务必访问 ti.com 参考最新的英文版本（控制文档）。

1 特性

  • 针对基于分流电阻的电流测量进行优化的引脚兼容系列：
    • 输入电压范围为 ±50mV 或 ±250mV
    • CMOS 或 LVDS 数字接口选项
  • 出色的直流性能，支持系统级高精度感测：
    • 偏移误差：±50µV 或 ±100µV（最大值）
    • 偏移漂移：1.3µV/°C（最大值）
    • 增益误差：±0.2% 或 ±0.3%（最大值）
    • 增益漂移：±40ppm/°C（最大值）
  • 安全相关认证：
    • 7000 VPK 增强型隔离，符合 DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 标准
    • 符合 UL 1577 标准且长达 1 分钟的 5000 VRMS 隔离
    • CAN/CSA No. 5A 组件接受服务通知、IEC 60950-1 和 IEC 60065 终端设备标准
  • 瞬态抗扰度：15kV/µs（最小值）
  • 高电磁场抗扰度
    （请参见应用手册 SLLA181A）
  • 外部 5MHz 至 20MHz 时钟输入
    可更加轻松地实现系统级同步
  • 18V 片载低压降 (LDO) 稳压器
  • 可在扩展工业温度范围内运行

2 应用

  • 基于分流电阻的电流感测用于下列应用：
    • 工业电机驱动
    • 光电逆变器
    • 不间断电源
  • 隔离电压测量

3 说明

AMC1304 是一款高精度 Δ-Σ (ΔΣ) 调制器，通过磁场抗扰度较高的电容式双隔离栅隔离输出与输入电路。根据 DIN V VDE V 0884-10、UL1577 和 CSA 标准，该隔离栅经认证可提供高达 7000 VPEAK 的增强型隔离。当与隔离电源配合使用时，该器件可防止共模高电压线路上的噪声电流进入本地系统接地，从而干扰或损害低电压电路。

AMC1304 的输入针对直接连接分流电阻或其他低电压等级信号源进行了优化。凭借独特的 ±50mV 低输入电压范围，器件可通过分流显著降低功耗，同时具有出色的交流和直流性能。通过使用适当的数字滤波器（即集成于 TMS320F2807x 或 TMS320F2837x 系列）来抽取位流，该器件可在 78kSPS 数据速率下实现 81dB (13.2 ENOB) 动态范围的 16 位分辨率。

在高侧，调制器由集成的低压降 (LDO) 稳压器供电，该稳压器支持介于 4V 和 18V 之间的未经稳压的输入电压 (LDOIN)。隔离数字接口由 3.3V 或 5V 电源 (DVDD) 供电。

AMC1304 采用宽体小外形尺寸集成电路 (SOIC)-16 (DW) 封装，工作温度范围为 –40°C 至 +125°C。

器件信息(1)

器件型号 封装 封装尺寸（标称值）
AMC1304x SOIC (16) 10.30mm x 7.50mm
  1. 如需了解所有可用封装，请见数据表末尾的可订购产品附录。

简化电路原理图

AMC1304L05 AMC1304L25 AMC1304M05 AMC1304M25 ai_sch_bas655.gif

4 修订历史记录

Changes from D Revision (August 2016) to E Revision

  • Changed V(ESD) for Human-body model (HBM) from ±2000 V to ±2500 VGo
  • Changed 1G and 10G to 1M and 10M, respectively, in Quantization Noise Shaping figureGo

Changes from C Revision (September 2015) to D Revision

  • 已更改“特性”部分：删除了经过认证的隔离隔栅分项，增加了安全相关认证和瞬态抗扰度分项Go
  • 已更改简化原理图 Go
  • Changed Specifications section to comply with ISO data sheet format Go
  • Changed Maximum virtual junction parameter to Junction temperature in Absolute Maximum Ratings table Go
  • Moved Power Rating, Insulation Specifications, Safety-Related Certifications, and Safety Limiting Values tables, changed to current standardsGo
  • Changed Insulation Specifications table as per ISO standard Go
  • Added Safety and Insulation Characteristics section Go
  • Changed Figure 54 (The AMC1304 in a Frequency Inverter Application)Go
  • Changed Figure 58 (Decoupling the AMC1304)Go

Changes from B Revision (July 2015) to C Revision

  • 已将文档状态更改为完整量产数据：已将 AMC1304Mx5 发布为量产数据Go
  • Changed status of AMC1304Mx5 rows to Production in Device Comparison Table Go
  • Changed title of AMC1304x05 Electrical Characteristics table from AMC1304L05 to AMC1304x05 Go
  • Changed typical specification in second row of DC Accuracy, PSRR parameter of AMC1304x05 Electrical Characteristics tableGo
  • Added CMOS Logic Family (AMC1304M05) section to AMC1304x05 Electrical Characteristics tableGo
  • Added last two rows to the Power Supply, IDVDD and PDVDD parameters of AMC1304x05 Electrical Characteristics tableGo
  • Changed title of AMC1304x25 Electrical Characteristics table from AMC1304L25 to AMC1304x25Go
  • Changed typical specification in second row of DC Accuracy, PSRR parameter of AMC1304x25 Electrical Characteristics table Go
  • Added CMOS Logic Family (AMC1304M05) section to AMC1304x25 Electrical Characteristics table Go
  • Added footnote 4 to AMC1304x25 Electrical Characteristics tableGo
  • Added last two rows to the Power Supply, IDVDD and PDVDD parameters of AMC1304x25 Electrical Characteristics table Go
  • Changed legends of Figure 6 and Figure 7 to include all devices, changed conditions of Figure 10 and Figure 11 Go
  • Changed conditions of Figure 12, Figure 13, and Figure 14 Go
  • Changed legends of Figure 19 to Figure 22, changed conditions of Figure 23 Go
  • Changed conditions of Figure 24 and Figure 29 Go
  • Changed conditions of Figure 30 and Figure 35 Go
  • Changed conditions of Figure 36 to Figure 40 Go
  • Added CMOS curve to Figure 44 to Figure 47 Go
  • Changed legend of Figure 57 Go

Changes from A Revision (May 2015) to B Revision

  • 已将 AMC1304L25 发布为量产数据Go
  • 已更改第二个特性要点的偏移误差和增益误差 分项 ，以包括 AMC1304L25 规范Go
  • Changed status of second row to Production Go
  • Changed table order in Specifications section to match correct SDS flowGo
  • Added AMC1304L25 Electrical Characteristics table Go
  • Changed Typical Characteristics section: changed condition statement to reflect AINP difference between device, added AMC1304L25 related curvesGo
  • Added AMC1304L25 plot to Figure 6 and Figure 7 Go
  • Changed Figure 10 Go
  • Added Figure 11 Go
  • Added Figure 12 and condition to Figure 13 Go
  • Changed Figure 14 Go
  • Added AMC1304L25 plot to Figure 19, Figure 20, Figure 21, and Figure 22 Go
  • Added Figure 23 Go
  • Added Figure 29 and condition to Figure 24 Go
  • Added condition to Figure 30 Go
  • Added Figure 35 Go
  • Added condition to Figure 36 Go
  • Added device name to conditions of Figure 37 and Figure 38 Go
  • Added Figure 39 and Figure 40 Go

Changes from * Revision (September 2014) to A Revision

  • 已更改产品预览文档；已将 AMC1304L05 发布为量产数据Go

 
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