ZHCSNM6A May   2021  – August 2021 TPS6521855

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     4
  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 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Wake-Up and Power-Up and Power-Down Sequencing
        1. 7.3.1.1  Power-Up Sequencing
        2. 7.3.1.2  Power-Down Sequencing
        3. 7.3.1.3  Strobe 1 and Strobe 2
        4. 7.3.1.4  Supply Voltage Supervisor and Power-Good (PGOOD)
        5. 7.3.1.5  Internal LDO (INT_LDO)
        6. 7.3.1.6  Current Limited Load Switches
          1. 7.3.1.6.1 Load Switch 1 (LS1)
          2. 7.3.1.6.2 Load Switch 2 (LS2)
          3. 7.3.1.6.3 Load Switch 3 (LS3)
        7. 7.3.1.7  LDO1
        8. 7.3.1.8  UVLO
        9. 7.3.1.9  Power-Fail Comparator
        10. 7.3.1.10 DCDC3 and DCDC4 Power-Up Default Selection
        11. 7.3.1.11 I/O Configuration
          1. 7.3.1.11.1 Using GPIO3 as Reset Signal to DCDC1 and DCDC2
        12. 7.3.1.12 Push Button Input (PB)
          1. 7.3.1.12.1 Signaling PB-Low Event on the nWAKEUP Pin
          2. 7.3.1.12.2 Push Button Reset
        13. 7.3.1.13 AC_DET Input (AC_DET)
        14. 7.3.1.14 Interrupt Pin (INT)
        15. 7.3.1.15 I2C Bus Operation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Modes of Operation
      2. 7.4.2 OFF
      3. 7.4.3 ACTIVE
      4. 7.4.4 SUSPEND
      5. 7.4.5 RESET
    5. 7.5 Register Maps
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Applications Without Backup Battery
      2. 8.1.2 Applications Without Battery Backup Supplies
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Output Filter Design
        2. 8.2.2.2 Inductor Selection for Buck Converters
        3. 8.2.2.3 Output Capacitor Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Package Option Addendum
      1. 12.1.1 Packaging Information
      2. 12.1.2 Tape and Reel Information

封装选项

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

7.4.3 ACTIVE

This is the typical mode of operation when the system is up and running. All DCDC converters, LDOs, and load switches are operational and can be controlled through the I2C interface. After a wake-up event, the PMIC enables all rails controlled by the sequencer and pulls the nWAKEUP pin low to signal the event to the host processor. The device only enters the ACTIVE state if the host asserts the PWR_EN pin within 20 s after the wake-up event. Otherwise it will enter the OFF state. The nWAKEUP pin returns to HiZ mode after the PWR_EN pin is asserted. The ACTIVE state can also be directly entered from the SUSPEND state by pulling the PWR_EN pin high. See the SUSPEND state description for details. To exit the ACTIVE mode, the PWR_EN pin must be pulled low.
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