JAJSF59E December   2014  – March 2022 TPS62406-Q1 , TPS62407-Q1 , TPS62422-Q1 , TPS62423-Q1 , TPS62424-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 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 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Converter 1
      2. 8.1.2 Converter 2
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Enable
      2. 8.3.2 DEF_1 Pin Function
      3. 8.3.3 180° Out-of-Phase Operation
      4. 8.3.4 Short-Circuit Protection
      5. 8.3.5 Thermal Shutdown
      6. 8.3.6 EasyScale Interface: One-Pin Serial Interface for Dynamic Output-Voltage Adjustment
        1. 8.3.6.1 General
        2. 8.3.6.2 Protocol
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Save Mode
        1. 8.4.1.1 Dynamic Voltage Positioning
        2. 8.4.1.2 Soft Start
        3. 8.4.1.3 100% Duty-Cycle Low-Dropout Operation
        4. 8.4.1.4 Undervoltage Lockout
      2. 8.4.2 Mode Selection
    5. 8.5 Programming
      1. 8.5.1 Addressable Registers
        1. 8.5.1.1 Bit Decoding
        2. 8.5.1.2 Acknowledge
        3. 8.5.1.3 Mode Selection
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 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 Voltage Setting
          1. 9.2.2.1.1 Converter 1 Fixed Default Output-Voltage Setting
          2. 9.2.2.1.2 Converter 2 Fixed Default Output-Voltage Setting
        2. 9.2.2.2 Output Filter Design (Inductor and Output Capacitor)
          1. 9.2.2.2.1 Inductor Selection
          2. 9.2.2.2.2 Output-Capacitor Selection
          3. 9.2.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 サポート・リソース
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

8.5.1 Addressable Registers

Three registers with a data content of 5 bits are addressable. With 5-bit data content, 32 different values for each register are available. Table 8-1 shows the addressable registers to set the output voltage when the DEF_1 pin works as a digital input. In this case, converter 1 has a related register for each DEF_1 pin condition, and one register for converter 2. A high or low condition on pin DEF_1 selects either the content of register REG_DEF_1_High or REG_DEF_1_Low, thus setting the output voltage of converter 1 according to the values in Selectable Output Voltage Converter 1, With Pin DEF_1 as Digital Input. Use of a precise internal resistor divider network to generate these output voltages makes external resistors unnecessary (less board space) and provides higher output-voltage accuracy. Enabling at least one of the converters (EN1 or EN2 is high) activates the interface. After the startup time tStart (170 μs), the interface is ready for data reception.

Table 8-1 Addressable Registers for Default Fixed-Output Voltage Options (PIN DEF_1 = Digital Input)
DEVICEREGISTERDESCRIPTIONDEF_1
PIN		A1A0D4D3D2D1D0
TPS624xx-Q1 ,
REG_DEF_1_HighConverter 1 output voltage setting for
DEF_1 = High condition. The content of the register is active with the DEF_1 pin high.		High01Output voltage setting, see Table 8-3
REG_DEF_1_LowConverter 1 output voltage setting for
DEF_1 = Low condition.		Low00Output voltage setting, see Table 8-3
REG_DEF_2Converter 2 output voltageNot applicable10Output voltage setting, see Table 8-4
Do not use11