ZHCSJN5A February   2018  – April 2019 TPS2HB50-Q1

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

1. 1 特性
2. 2 應用
3. 3 說明
   1.     簡化原理圖
4. 4 修訂歷史記錄
5. 5 Device Comparison Table
6. 6 Pin Configuration and Functions
   1.     Pin Functions
   2. 6.1 Recommended Connections for Unused Pins
7. 7 Specifications
   1. Table 3. Absolute Maximum Ratings
   2. Table 4. ESD Ratings
   3. Table 5. Recommended Operating Conditions
   4. Table 6. Thermal Information
   5. Table 7. Electrical Characteristics
   6. Table 8. SNS Timing Characteristics
   7. Table 9. Switching Characteristics
8. 8 Parameter Measurement Information
9. 9 Detailed Description
   1. 9.1 Overview
   2. 9.2 Functional Block Diagram
   3. 9.3 Feature Description
      1. 9.3.1 Protection Mechanisms
         1. 9.3.1.1 Thermal Shutdown
         2. 9.3.1.2 Current Limit
            1. 9.3.1.2.1 Current Limit Foldback
            2. 9.3.1.2.2 Programmable Current Limit
            3. 9.3.1.2.3 Undervoltage Lockout (UVLO)
            4. 9.3.1.2.4 VBB During Short-to-Ground
         3. 9.3.1.3 Voltage Transients
            1. 9.3.1.3.1 Load Dump
         4. 9.3.1.4 Driving Inductive Loads
         5. 9.3.1.5 Reverse Battery
         6. 9.3.1.6 Fault Event – Timing Diagrams
      2. 9.3.2 Diagnostic Mechanisms
         1. 9.3.2.1 VOUTx Short-to-Battery and Open-Load
            1. 9.3.2.1.1 Detection With Switch Enabled
            2. 9.3.2.1.2 Detection With Switch Disabled
         2. 9.3.2.2 SNS Output
            1. 9.3.2.2.1 RSNS Value
               1. 9.3.2.2.1.1 High Accuracy Load Current Sense
               2. 9.3.2.2.1.2 SNS Output Filter
         3. 9.3.2.3 Fault Indication and SNS Mux
         4. 9.3.2.4 Resistor Sharing
         5. 9.3.2.5 High-Frequency, Low Duty-Cycle Current Sensing
   4. 9.4 Device Functional Modes
      1. 9.4.1 Off
      2. 9.4.2 Standby
      3. 9.4.3 Diagnostic
      4. 9.4.4 Standby Delay
      5. 9.4.5 Active
      6. 9.4.6 Fault
10. 10Application and Implementation
    1. 10.1 Application Information
       1. 10.1.1 Ground Protection Network
       2. 10.1.2 Interface With Microcontroller
       3. 10.1.3 I/O Protection
       4. 10.1.4 Inverse Current
       5. 10.1.5 Loss of GND
       6. 10.1.6 Automotive Standards
          1. 10.1.6.1 ISO7637-2
          2. 10.1.6.2 AEC – Q100-012 Short Circuit Reliability
    2. 10.2 Typical Application
       1. 10.2.1 Design Requirements
       2. 10.2.2 Detailed Design Procedure
          1. 10.2.2.1 Thermal Considerations
          2. 10.2.2.2 RILIM Calculation
          3. 10.2.2.3 Diagnostics
             1. 10.2.2.3.1 Selecting the RSNS Value
11. 11Power Supply Recommendations
12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
13. 13器件和文檔支持
    1. 13.1 文檔支持
       1. 13.1.1 相關文檔
    2. 13.2 接收文檔更新通知
    3. 13.3 社區資源
    4. 13.4 商標
    5. 13.5 靜電放電警告
    6. 13.6 術語表
14. 14機械、封裝和可訂購信息