ZHCSIX2 October   2018 TPS65216

PRODUCTION DATA.  

  1. 1器件概述
    1. 1.1 特性
    2. 1.2 应用
    3. 1.3 说明
    4. 1.4 简化原理图
  2. 2Pin Configuration and Functions
    1. 2.1 Pin Functions
      1.      Pin Functions
  3. 3Specifications
    1. 3.1 Absolute Maximum Ratings
    2. 3.2 ESD Ratings
    3. 3.3 Recommended Operating Conditions
    4. 3.4 Thermal Information
    5. 3.5 Electrical Characteristics
    6. 3.6 Timing Requirements
    7. 3.7 Typical Characteristics
  4. 4Detailed Description
    1. 4.1 Overview
    2. 4.2 Functional Block Diagram
    3. 4.3 Feature Description
      1. 4.3.1 Wake-Up and Power-Up and Power-Down Sequencing
        1. 4.3.1.1  Power-Up Sequencing
        2. 4.3.1.2  Power-Down Sequencing
        3. 4.3.1.3  Strobes 1 and 2
        4. 4.3.1.4  Supply Voltage Supervisor and Power Good (PGOOD)
        5. 4.3.1.5  Internal LDO (INT_LDO)
        6. 4.3.1.6  Current Limited Load Switch
        7. 4.3.1.7  LDO1
        8. 4.3.1.8  UVLO
        9. 4.3.1.9  Power-Fail Comparator
        10. 4.3.1.10 DCDC3 / DCDC4 Power-Up Default Selection
        11. 4.3.1.11 I/O Configuration
          1. 4.3.1.11.1 Using GPIO2 as Reset Signal to DCDC1 and DCDC2
        12. 4.3.1.12 Push Button Input (PB)
          1. 4.3.1.12.1 Signaling PB-Low Event on the nWAKEUP Pin
          2. 4.3.1.12.2 Push Button Reset
        13. 4.3.1.13 AC_DET Input (AC_DET)
        14. 4.3.1.14 Interrupt Pin (INT)
        15. 4.3.1.15 I2C Bus Operation
    4. 4.4 Device Functional Modes
      1. 4.4.1 Modes of Operation
      2. 4.4.2 OFF
      3. 4.4.3 ACTIVE
      4. 4.4.4 SUSPEND
      5. 4.4.5 RESET
    5. 4.5 Register Maps
      1. 4.5.1 Password Protection
      2. 4.5.2 FLAG Register
      3. 4.5.3 TPS65216Registers
        1. 4.5.3.1  CHIPID Register (subaddress = 0x0) [reset = 0x5]
          1. Table 4-7 CHIPID Register Field Descriptions
        2. 4.5.3.2  INT1 Register (subaddress = 0x1) [reset = 0x0]
          1. Table 4-8 INT1 Register Field Descriptions
        3. 4.5.3.3  INT2 Register (subaddress = 0x2) [reset = 0x0]
          1. Table 4-9 INT2 Register Field Descriptions
        4. 4.5.3.4  INT_MASK1 Register (subaddress = 0x3) [reset = 0x0]
          1. Table 4-10 INT_MASK1 Register Field Descriptions
        5. 4.5.3.5  INT_MASK2 Register (subaddress = 0x4) [reset = 0x0]
          1. Table 4-11 INT_MASK2 Register Field Descriptions
        6. 4.5.3.6  STATUS Register (subaddress = 0x5) [reset = 00XXXXXXb]
          1. Table 4-12 STATUS Register Field Descriptions
        7. 4.5.3.7  CONTROL Register (subaddress = 0x6) [reset = 0x0]
          1. Table 4-13 CONTROL Register Field Descriptions
        8. 4.5.3.8  FLAG Register (subaddress = 0x7) [reset = 0x0]
          1. Table 4-14 FLAG Register Field Descriptions
        9. 4.5.3.9  PASSWORD Register (subaddress = 0x10) [reset = 0x0]
          1. Table 4-15 PASSWORD Register Field Descriptions
        10. 4.5.3.10 ENABLE1 Register (subaddress = 0x11) [reset = 0x0]
          1. Table 4-16 ENABLE1 Register Field Descriptions
        11. 4.5.3.11 ENABLE2 Register (subaddress = 0x12) [reset = 0x0]
          1. Table 4-17 ENABLE2 Register Field Descriptions
        12. 4.5.3.12 CONFIG1 Register (subaddress = 0x13) [reset = 0x4C]
          1. Table 4-18 CONFIG1 Register Field Descriptions
        13. 4.5.3.13 CONFIG2 Register (subaddress = 0x14) [reset = 0xC0]
          1. Table 4-19 CONFIG2 Register Field Descriptions
        14. 4.5.3.14 CONFIG3 Register (subaddress = 0x15) [reset = 0x0]
          1. Table 4-20 CONFIG3 Register Field Descriptions
        15. 4.5.3.15 DCDC1 Register (offset = 0x16) [reset = 0x99]
          1. Table 4-21 DCDC1 Register Field Descriptions
        16. 4.5.3.16 DCDC2 Register (subaddress = 0x17) [reset = 0x99]
          1. Table 4-22 DCDC2 Register Field Descriptions
        17. 4.5.3.17 DCDC3 Register (subaddress = 0x18) [reset = 0x8C]
          1. Table 4-23 DCDC3 Register Field Descriptions
        18. 4.5.3.18 DCDC4 Register (subaddress = 0x19) [reset = 0xB2]
          1. Table 4-24 DCDC4 Register Field Descriptions
        19. 4.5.3.19 SLEW Register (subaddress = 0x1A) [reset = 0x6]
          1. Table 4-25 SLEW Register Field Descriptions
        20. 4.5.3.20 LDO1 Register (subaddress = 0x1B) [reset = 0x1F]
          1. Table 4-26 LDO1 Register Field Descriptions
        21. 4.5.3.21 SEQ1 Register (subaddress = 0x20) [reset = 0x0]
          1. Table 4-27 SEQ1 Register Field Descriptions
        22. 4.5.3.22 SEQ2 Register (subaddress = 0x21) [reset = 0x0]
          1. Table 4-28 SEQ2 Register Field Descriptions
        23. 4.5.3.23 SEQ3 Register (subaddress = 0x22) [reset = 0x98]
          1. Table 4-29 SEQ3 Register Field Descriptions
        24. 4.5.3.24 SEQ4 Register (subaddress = 0x23) [reset = 0x75]
          1. Table 4-30 SEQ4 Register Field Descriptions
        25. 4.5.3.25 SEQ5 Register (subaddress = 0x24) [reset = 0x12]
          1. Table 4-31 SEQ5 Register Field Descriptions
        26. 4.5.3.26 SEQ6 Register (subaddress = 0x25) [reset = 0x63]
          1. Table 4-32 SEQ6 Register Field Descriptions
        27. 4.5.3.27 SEQ7 Register (subaddress = 0x26) [reset = 0x3]
          1. Table 4-33 SEQ7 Register Field Descriptions
  5. 5Application and Implementation
    1. 5.1 Application Information
    2. 5.2 Typical Application
      1. 5.2.1 Design Requirements
      2. 5.2.2 Detailed Design Procedure
        1. 5.2.2.1 Output Filter Design
        2. 5.2.2.2 Inductor Selection for Buck Converters
        3. 5.2.2.3 Output Capacitor Selection
      3. 5.2.3 Application Curves
  6. 6Power Supply Recommendations
  7. 7Layout
    1. 7.1 Layout Guidelines
    2. 7.2 Layout Example
  8. 8器件和文档支持
    1. 8.1 器件支持
      1. 8.1.1 第三方产品免责声明
    2. 8.2 文档支持
      1. 8.2.1 相关文档
    3. 8.3 接收文档更新通知
    4. 8.4 社区资源
    5. 8.5 商标
    6. 8.6 静电放电警告
    7. 8.7 Glossary
  9. 9机械、封装和可订购信息
    1. 9.1 Package Option Addendum
      1. 9.1.1 Packaging Information
      2. 9.1.2 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

4.3.1.6 Current Limited Load Switch

The TPS65216 provides a current limited load switch with individual enable control. The load switch provides the following control and diagnostic features:

  • The ON/OFF state of the switch is controlled by the corresponding LS_EN bit in the ENABLE register.
  • The load switch can only be controlled through I2C communication. The sequencer has no control over the load switch.
  • The load switch has an active discharge function, disabled by default, and enabled through the LSDCHRG bit. When enabled, the switch output is discharged to ground whenever the switch is disabled.
  • When the PFI input drops below the power-fail threshold (the power-fail comparator trips), the load switch is automatically disabled to shed system load. This function must be individually through the corresponding LSnPFO bit. The switch does not turn back on automatically as the system voltage recovers, and must be manually re-enabled.
  • An interrupt (LS_I) issues whenever the load switch actively limits the output current, such as when the output load exceeds the current limit value. The switch remains ON and provides current to the load according to the current-limit setting.
  • The load switch has a local overtemperature sensor which disables the switch if the power dissipation and junction temperature exceeds safe operating value. The switch automatically recovers once the temperature drops below the OTS threshold value minus hysteresis. The LS_F (fault) interrupt bit is set while the switch is held OFF by the OTS function.

The load switch (LS) is a non-reverse blocking, medium-voltage (< 10 V), low-impedance switch that can be used to provide 1.8-V to 10-V power to an auxiliary port. LS has four selectable current limit values that are selectable through LSILIM[1:0].

TPS65216 216_load-sw.gifFigure 4-10 Typical Application of Load Switch