ZHCSIO9A August   2018  – June 2021 TPSM831D31

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  References: DAC
    7. 6.7  Telemetry
    8. 6.8  Current Sense and Calibration
    9. 6.9  Logic Interface Pins: A_EN, A_PGOOD, B_EN, B_PGOOD,RESET
    10. 6.10 Protections: OVP and UVP
    11. 6.11 Typical Characteristics (VIN = 12 V)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 DCAP+ Control
      2. 7.3.2 Setting the Load-Line (DROOP)
      3. 7.3.3 Start-Up Timing
      4. 7.3.4 Load Transitions
      5. 7.3.5 Switching Frequency
      6. 7.3.6 RESET Function
      7. 7.3.7 VID Table
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous Conduction Mode
      2. 7.4.2 Operation With EN Signal Control
      3. 7.4.3 Operation With OPERATION Control
      4. 7.4.4 Operation With EN and OPERATION Control
    5. 7.5 Programming
      1. 7.5.1  PMBus Connections
      2. 7.5.2  PMBus Address Selection
      3. 7.5.3  Supported Commands
      4. 7.5.4  Commonly Used PMBus Commands
      5. 7.5.5  Voltage, Current, Power, and Temperature Readings
        1. 7.5.5.1 (88h) READ_VIN
        2. 7.5.5.2 (89h) READ_IIN
        3. 7.5.5.3 (8Bh) READ_VOUT
        4. 7.5.5.4 (8Ch) READ_IOUT
        5. 7.5.5.5 (8Dh) READ_TEMPERATURE_1
        6. 7.5.5.6 (96h) READ_POUT
        7. 7.5.5.7 (97h) READ_PIN
        8. 7.5.5.8 (D4h) MFR_SPECIFIC_04
      6. 7.5.6  Output Current Sense and Calibration
        1. 7.5.6.1 Reading Individual Phase Currents
          1. 7.5.6.1.1 Reading Total Current
          2. 7.5.6.1.2 51
      7. 7.5.7  Output Voltage Margin Testing
        1. 7.5.7.1 (01h) OPERATION
        2. 7.5.7.2 (26h) VOUT_MARGIN_LOW
        3. 7.5.7.3 (25h) VOUT_MARGIN_HIGH
      8. 7.5.8  Loop Compensation
        1. 7.5.8.1 (D7h) MFR_SPECIFIC_07
        2. 7.5.8.2 (28h) VOUT_DROOP
      9. 7.5.9  Converter Protection and Response
      10. 7.5.10 Output Overvoltage Protection and Response
        1. 7.5.10.1 (40h) VOUT_OV_FAULT_LIMIT
        2. 7.5.10.2 (41h) VOUT_OV_FAULT_RESPONSE
      11. 7.5.11 Maximum Allowed Output Voltage Setting
        1. 7.5.11.1 (24h) VOUT_MAX
      12. 7.5.12 Output Undervoltage Protection and Response
        1. 7.5.12.1 (44h) VOUT_UV_FAULT_LIMIT
        2. 7.5.12.2 (45h) VOUT_UV_FAULT_RESPONSE
      13. 7.5.13 Minimum Allowed Output Voltage Setting
        1. 7.5.13.1 (2Bh) VOUT_MIN
      14. 7.5.14 Output Overcurrent Protection and Response
        1. 7.5.14.1 (46h) IOUT_OC_FAULT_LIMIT
        2. 7.5.14.2 (4Ah) IOUT_OC_WARN_LIMIT
        3. 7.5.14.3 (47h) IOUT_OC_FAULT_RESPONSE
        4. 7.5.14.4 Per Phase Overcurrent Limit Thresholds
      15. 7.5.15 Input Under-Voltage Lockout (UVLO)
        1. 7.5.15.1 (35h) VIN_ON
      16. 7.5.16 Input Over-Voltage Protection and Response
        1. 7.5.16.1 (55h) VIN_OV_FAULT_LIMIT
        2. 7.5.16.2 (56h) VIN_OV_FAULT_RESPONSE
      17. 7.5.17 Input Undervoltage Protection and Response
        1. 7.5.17.1 (59h) VIN_UV_FAULT_LIMIT
        2. 7.5.17.2 (5Ah) VIN_UV_FAULT_RESPONSE
      18. 7.5.18 Input Overcurrent Protection and Response
        1. 7.5.18.1 (5Bh) IIN_OC_FAULT_LIMIT
        2. 7.5.18.2 (5Dh) IIN_OC_WARN_LIMIT
        3. 7.5.18.3 (5Ch) IIN_OC_FAULT_RESPONSE
      19. 7.5.19 Overtemperature Protection and Response
        1. 7.5.19.1 (4Fh) OT_FAULT_LIMIT
        2. 7.5.19.2 (51h) OT_WARN_LIMIT
        3. 7.5.19.3 (50h) OT_FAULT_RESPONSE
      20. 7.5.20 Dynamic Phase Shedding (DPS)
        1. 7.5.20.1 (DEh) MFR_SPECIFIC_14
        2. 7.5.20.2 (DFh) MFR_SPECIFIC_15
      21. 7.5.21 NVM Programming
      22. 7.5.22 NVM Security
        1. 7.5.22.1 (FAh) MFR_SPECIFIC_42
      23. 7.5.23 Black Box Recording
        1. 7.5.23.1 (D8h) MFR_SPECIFIC_08
      24. 7.5.24 Board Identification and Inventory Tracking
      25. 7.5.25 Status Reporting
        1. 7.5.25.1 (78h) STATUS_BYTE
        2. 7.5.25.2 (79h) STATUS_WORD
        3. 7.5.25.3 (7Ah) STATUS_VOUT
        4. 7.5.25.4 (7Bh) STATUS_IOUT
        5. 7.5.25.5 (7Ch) STATUS_INPUT
        6. 7.5.25.6 (7Dh) STATUS_TEMPERATURE
        7. 7.5.25.7 (7Eh) STATUS_CML
        8. 7.5.25.8 (80h) STATUS_MFR_SPECIFIC
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Input Capacitors
        2. 8.2.2.2 Output Capacitors
        3. 8.2.2.3 Switching Frequency
        4. 8.2.2.4 Set PMBus Address
        5. 8.2.2.5 PMBus GUI Default Values
      3. 8.2.3 Application Performance Plots
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  11. 11Device and Documentation Support
    1. 11.1 接收文档更新通知
    2. 11.2 支持资源
    3. 11.3 Trademarks
    4. 11.4 静电放电警告
    5. 11.5 术语表
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
  • MOA|28
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.5.5.4 (8Ch) READ_IOUT

The READ_IOUT command returns the output current in amperes.

READ_IOUT is a linear format command.

READ_IOUT is a paged register. In order to access READ_IOUT for channel A, PAGE must be set to 00h. In order to access the READ_IOUT register for channel B, PAGE must be set to 01h. For simultaneous access of channels A and B, the PAGE command must be set to FFh. READ_IOUT is also a phased register. Depending on the configuration of the design, for channel A, PHASE must be set to 00h to access Phase 1, 01h to access Phase 2, etc... PHASE must be set to FFh to access all phases simultaneously. PHASE may also be set to 80h to readack the total phase current (sum of all active phase currents for the active channel) measurement, as described in Section 7.5.6. Note that READ_IOUT is only a phased command for Channel A (PAGE 0).

The READ_IOUT command must be accessed through Read Word transactions.

READ_IOUT
15 14 13 12 11 10 9 8
R R R R R R R R
READ_IOUT_EXP READ_IOUT_MAN
7 6 5 4 3 2 1 0
R R R R R R R R
READ_IOUT_MAN
LEGEND: R/W = Read/Write; R = Read only
Table 7-10 READ_IOUT Register Field Descriptions
Bit Field Type Reset Description
15:11 READ_IOUT_EXP R Current Status

Linear two's complement format exponent.
10:0 READ_IOUT_MAN R Current Status

Linear two's complement format mantissa.

Attempts to write to this command results in invalid transactions. The device ignores the invalid data, sets the appropriate flags in STATUS_CML and STATUS_WORD, and asserts the PMB_ALERT signal to notify the system host of an invalid transaction.
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