ZHCSJ77F December   2010  – December 2018 TPS51916

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     简化应用
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 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  VDDQ Switch Mode Power Supply Control
      2. 7.3.2  VREF and REFIN, VDDQ Output Voltage
      3. 7.3.3  Soft-Start and Powergood
      4. 7.3.4  Power State Control
      5. 7.3.5  Discharge Control
      6. 7.3.6  VTT and VTTREF
      7. 7.3.7  VDDQ Overvoltage and Undervoltage Protection
      8. 7.3.8  VDDQ Out-of-Bound Operation
      9. 7.3.9  VDDQ Overcurrent Protection
      10. 7.3.10 VTT Overcurrent Protection
      11. 7.3.11 V5IN Undervoltage Lockout Protection
      12. 7.3.12 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 MODE Pin Configuration
      2. 7.4.2 D-CAP™ Mode
    5. 7.5 D-CAP2™ Mode Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 DDR3, D-CAP™ 400-kHz Application with Tracking Discharge
        1. 8.1.1.1 Design Requirements
        2. 8.1.1.2 Detailed Design Procedure
          1. 8.1.1.2.1 1. Determine the value of R1 AND R2
          2. 8.1.1.2.2 2. Choose the inductor
          3. 8.1.1.2.3 3. Choose the OCL setting resistance, RTRIP
          4. 8.1.1.2.4 Choose the output capacitors
        3. 8.1.1.3 Application Curves
      2. 8.1.2 DDR3, DCAP-2 500-kHz Application, with Tracking Discharge
        1. 8.1.2.1 Design Requirements
        2. 8.1.2.2 Detailed Design Procedure
          1. 8.1.2.2.1 Select Mode and Switching Frequency
          2. 8.1.2.2.2 Determine output capacitance
        3. 8.1.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 术语表
  12. 12机械、封装和可订购信息

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

7.4.1 MODE Pin Configuration

The TPS51916 device reads the MODE pin voltage when the S5 signal is raised high and stores the status in a register. A 15-μA current is sourced from the MODE pin during this time to read the voltage across the resistor connected between the pin and GND. Table 2 shows resistor values, corresponding control mode, switching frequency and discharge mode configurations.

Table 2. MODE Selection

MODE NO. RESISTANCE BETWEEN
MODE AND GND (kΩ)		 CONTROL
MODE		 SWITCHING
FREQUENCY (kHz)		 DISCHARGE MODE
7 200 D-CAP™ 400 Tracking
6 100 300
5 68 300 Non-tracking
4 47 400
3 33 D-CAP2™ 500
2 22 670
1 12 670 Tracking
0 1 500