ZHCSCV2C june   2014  – may 2023 TPS65263

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Adjusting the Output Voltage
      2. 8.3.2  Enable and Adjusting UVLO
      3. 8.3.3  Soft-Start Time
      4. 8.3.4  Power-Up Sequencing
      5. 8.3.5  V7V Low Dropout Regulator and Bootstrap
      6. 8.3.6  Out-of-Phase Operation
      7. 8.3.7  Output Overvoltage Protection (OVP)
      8. 8.3.8  Pulse Skipping Mode (PSM)
      9. 8.3.9  Slope Compensation
      10. 8.3.10 Overcurrent Protection
        1. 8.3.10.1 High-Side MOSFET Overcurrent Protection
        2. 8.3.10.2 Low-Side MOSFET Overcurrent Protection
      11. 8.3.11 Power Good
      12. 8.3.12 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Serial Interface Description
      2. 8.4.2 I2C Update Sequence
    5. 8.5 Register Maps
      1. 8.5.1 Register Description
      2. 8.5.2 VOUT1_SEL: Vout1 Voltage Selection Register (offset = 0x00H)
      3. 8.5.3 VOUT2_SEL: Vout2 Voltage Selection Register (offset = 0x01H)
      4. 8.5.4 VOUT3_SEL: Vout3 Voltage Selection Register (offset = 0x02H)
      5. 8.5.5 VOUT1_COM: Buck1 Command Register (offset = 0x03H)
      6. 8.5.6 VOUT2_COM: Buck2 Command Register (offset = 0x04H)
      7. 8.5.7 VOUT3_COM: Buck3 Command Register (offset = 0x05H)
      8. 8.5.8 SYS_STATUS: System Status Register (offset = 0x06H)
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Inductor Selection
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
        4. 9.2.2.4 Loop Compensation
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 接收文档更新通知
    2. 10.2 支持资源
    3. 10.3 Trademarks
    4. 10.4 静电放电警告
    5. 10.5 术语表
  12. 11Mechanical, Packaging, and Orderable Information

8.3.11 Power Good

The power good indicator for each buck channel can be read back through I2 C.

When feedback voltage of the buck is between 95% (rising) and 105% (falling) of the internal voltage reference, the bit0, bit1 and bit2 in SYS_STATUS (address 0x06H) present the feedback voltage in regulation (logic 1) for buck1, buck2 and buck3 respectively. When feedback voltage of the buck is lower than 92.5% (falling) or greater than 107.5% (rising) of the nominal internal reference voltage, the bit0, bit1 and bit2 in SYS_STATUS (address 0x06H) present the feedback voltage beyond regulation (logic 0) for buck1, buck2 and buck3 respectively.
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