ZHCSHH3B January   2018  – July 2018 TS5MP645

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Powered-Off Protection
      2. 8.3.2 1.8 V Logic Compatible Inputs
      3. 8.3.3 Low Power Disable Mode
    4. 8.4 Device Functional Modes
      1. 8.4.1 Pin Functions
      2. 8.4.2 Low Power Mode
      3. 8.4.3 Switch Enabled Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 文档支持
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YFP|36
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.3.1 Powered-Off Protection

When the TS5MP645 is powered off (VDD = 0 V) the I/Os and digital logic pins of the device will remain in a high impedance state. The crosstalk, off-isolation, and leakage remains within the electrical specifications. This prevents errant voltages from reaching the rest of the system and maintains isolation when the system is powering up.

Figure 20 shows an example system containing a switch without powered-off protection with the following system level scenario

  1. Subsystem A powers up and starts sending information to Subsystem B that remains unpowered.
  2. The I/O voltage back powers the supply rail in Subsystem B.
  3. The digital logic is back powered and turns on the switch. The signal is transmitted to Subsystem B before it is powered and damages it.

TS5MP645 scds371-PoP-1.gifFigure 20. System Without Powered-Off Protection

With powered-off protection, the switch prevents back powering the supply and the switch remains high-impedance. Subsystem B remains protected.

TS5MP645 scds371-PoP-2.gifFigure 21. System With Powered-Off Protection

This features has the following system level benefits.

  • Protects the system from damage.
  • Prevents data from being transmitted unintentionally
  • Eliminates the need for power sequencing solutions reducing BOM count and cost, simplifying system design and improving reliability.