ZHCSCV5B August   2014  – September 2014 TPS22994

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 简化电路原理图
  5. 5 修订历史记录
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 8 Specifications
    1. 8.1 Recommended Operating Conditions
    2. 8.2 Absolute Maximum Ratings
    3. 8.3 Handling Ratings
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Switching Characteristics, VBIAS = 7.2 V
    7. 8.7 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Operating Frequency
      2. 9.3.2  SDA/SCL Pin Configuration
      3. 9.3.3  Address (ADDx) Pin Configuration
      4. 9.3.4  On-Delay Control
      5. 9.3.5  Slew Rate Control
      6. 9.3.6  Quick Output Discharge (QOD) Control
      7. 9.3.7  Mode Registers
      8. 9.3.8  SwitchALL™ Command
      9. 9.3.9  VDD Supply For I2C Operation
      10. 9.3.10 Input Capacitor (Optional)
      11. 9.3.11 Output Capacitor (Optional)
      12. 9.3.12 I2C Protocol
        1. 9.3.12.1 Start and Stop Bit
        2. 9.3.12.2 Auto-increment Bit
        3. 9.3.12.3 Write Command
        4. 9.3.12.4 Read Command
        5. 9.3.12.5 SwitchALLTM Command
    4. 9.4 Device Functional Modes
      1. 9.4.1 I2C Control
      2. 9.4.2 GPIO Control
    5. 9.5 Register Map
  10. 10Applications and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Input Capacitor (Optional)
      2. 10.1.2 Output Capacitor (Optional)
      3. 10.1.3 Switch from GPIO Control to I2C Control (and vice versa)
      4. 10.1.4 Configuration of Configuration Registers
        1. 10.1.4.1 Single Register Configuration
        2. 10.1.4.2 Multi-register Configuration (Consecutive Registers)
      5. 10.1.5 Configuration of Mode Registers
      6. 10.1.6 Turn-on/Turn-off of Channels
    2. 10.2 Typical Application
      1. 10.2.1 Tying Multiple Channels in Parallel
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curves
      2. 10.2.2 Cold Boot Programming of All Registers
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curves
      3. 10.2.3 Power Sequencing Without I2C
        1. 10.2.3.1 Design Requirements
          1. 10.2.3.1.1 Reading From the Registers
        2. 10.2.3.2 Detailed Design Procedure
          1. 10.2.3.2.1 VIN to VOUT Voltage Drop
          2. 10.2.3.2.2 Inrush Current
        3. 10.2.3.3 Application Curves
  11. 11Layout
    1. 11.1 Board Layout
  12. 12器件和文档支持
    1. 12.1 商标
    2. 12.2 静电放电警告
    3. 12.3 术语表
  13. 13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

6 Device Comparison Table

TPS22994
RON TYPICAL AT 3.3 V(VBIAS = 7.2 V) 41 mΩ
RISE TIME(1) Programmable
ON DELAY(1) Programmable
QUICK OUTPUT DISCHARGE(1)(2) Programmable
MAXIMUM OUTPUT CURRENT(per channel) 1 A
GPIO ENABLE Active High
OPERATING TEMP –40°C to 85°C
(1) See Application Information section.
(2) This feature discharges output of the switch to GND through an internal resistor, preventing the output from floating. See Application information section.