ZHCSPK7F November   2004  – January 2022 TPS2384

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 PMM Faults
      2. 8.3.2 Watchdog Timer
    4. 8.4 Device Functional Modes
      1. 8.4.1  Auto Mode
      2. 8.4.2  Auto Mode Functional Description
        1. 8.4.2.1 AM Discovery
        2. 8.4.2.2 AM Classification
        3. 8.4.2.3 AM Power Delivery
      3. 8.4.3  AM Faults and INTB Output
      4. 8.4.4  Over and Undervoltage Fault
      5. 8.4.5  Over Current or Current Limit Faults
      6. 8.4.6  Undercurrent Fault (DC Modulated Disconnect)
      7. 8.4.7  Power Management Mode (PMM)
        1. 8.4.7.1 13 PMM Functions
      8. 8.4.8  PMM Discovery 1
      9. 8.4.9  PMM Discovery 2
      10. 8.4.10 PMM Classification
      11. 8.4.11 PMM Legacy
      12. 8.4.12 PMM Rup Pwr
      13. 8.4.13 PMM RDWN
    5. 8.5 Programming
      1. 8.5.1 I2C Interface Description
      2. 8.5.2 Start and Stop
      3. 8.5.3 Chip Address
      4. 8.5.4 Chip Addressing
      5. 8.5.5 Data Write Cycle
      6. 8.5.6 Port and Register Cycle
      7. 8.5.7 Data Read Cycle
    6. 8.6 Register Maps
      1. 8.6.1 Register/Port Addressing Map
      2. 8.6.2 Common Read, Register Select
      3. 8.6.3 Common Write, Register Select = 1111 (Test Register)
      4. 8.6.4 Common Control Write, Register Select = 0001
      5. 8.6.5 Port Control Write 1, Register Select = 0010 (One Per Port)
      6. 8.6.6 Port Control Write 2, Register Select = 0011 (One Per Port)
      7. 8.6.7 Port Status Read 1, Register Select = 0100 (One Per Port)
      8. 8.6.8 Port Status Read 2, Register Select = 0101 (One Per Port)
      9. 8.6.9 A/D Results Registers (Discovery Current, Voltage, Current and Temperature)
        1. 8.6.9.1 Discovery Current — Lower Bits, Register Select = 0110 (One Per Port)
        2. 8.6.9.2 Discovery Current — Upper Bits, Register Select = 0111 (One Per Port)
        3. 8.6.9.3 Voltage — Lower Bits, Register Select = 1000 (One Per Port)
        4. 8.6.9.4 Voltage — Upper Bits, Register Select = 1001 (One Per Port)
        5. 8.6.9.5 Current — Lower Bits, Register Select = 1010 (One Per Port)
        6. 8.6.9.6 Current — Upper Bits, Register Select = 1011 (One Per Port)
        7. 8.6.9.7 Temperature — Lower Bits, Register Select = 1100 (One Per Port)
        8. 8.6.9.8 Temperature — Upper Bits, Register Select = 1101 (One Per Port)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 AC Disconnect Drive Circuit Detail
      2. 9.1.2 Connection of Unused Ports and Pins
      3. 9.1.3 Opto-isolator Interface
      4. 9.1.4 Port Protection from Electrical Transients
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Power Pin Bypass Capacitors
        2. 9.2.2.2 Per Port Components
        3. 9.2.2.3 Bias and Timing
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Local Circuits
      2. 11.1.2 System Protection Circuits
    2. 11.2 Layout Example
    3. 11.3 Thermal Consideration
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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8.4.7.1 13 PMM Functions

  • Disable: Disable the port and reset all functions.
  • Discovery 1: Enable the Discovery 1 condition which applies a 4.4 V across the PD and measure and store the resulting current.
  • Discovery 2: Enable the Discovery 2 condition which applies a 8.8 V across the PD and measure and store the resulting current.
  • V Sample: Measure the voltage between the P and N pins and store the result in the A/D voltage register.
  • Legacy: Enable the 3.5-mA current source for measuring capacitance and measure the voltage across the P and N terminals and store the result in the A/D voltage register.
  • Classify: Enable the classification condition which applies 17.7 V across the PD and measure and store the resulting current.
  • Rup Pwr: Turn on the output switch while controlling the current being delivered to the PD until the PD current needs are met or the max current is reached.
  • C Sample: Continuous cycle of 31 current measurements and 1 voltage measurement. After each measurement the contents of the appropriate register are updated.
  • Rdwn: Turn off the output switch while controlling current until output current reaches 0 mA.
  • AC LO: Turns on low side output FET and measures voltage between P and N pin and store result in A/D voltage registers.
  • AC HI: Turns on high side output FET and measures voltage between P and N pin and store result in A/D voltage registers.
  • ISample: Measure the current and store the result in the A/D current register.
  • TSample: Measure the internal die temperature and store the result in the A/D temperature register.

    Conversion times for A/D measurements performed as part of the functions listed above are generally as shown in the typical values in the Electrical Characteristics table. However, conversion time is somewhat dependant on the magnitude of the input signal being measured. Power management mode applications must take precautions to test the A/D DONE bit (MSB of the high byte) of the pertinent results register before accepting or using the returned value. A logic 1 at this bit location indicates the conversion is complete. Also, after an A/D conversion is in process on a given port, subsequent function calls to that port must wait until the currently executing conversion is complete. Commands written prior to completion can cause the results of the initial conversion to be written to the register of the subsequent function.

    GUID-E910CBA7-4389-4447-91F3-0303DD6683A7-low.gif Figure 8-11 Device Process Function Flow