ZHCSLK0A July   2021  – December 2021 TPS22992

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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 (VBIAS = 5 V)
    6. 7.6  Electrical Characteristics (VBIAS = 3.3 V)
    7. 7.7  Electrical Characteristics (VBIAS = 1.5 V)
    8. 7.8  Switching Characteristics (VBIAS = 5 V)
    9. 7.9  Switching Characteristics (VBIAS = 3.3 V)
    10. 7.10 Switching Characteristics (VBIAS = 1.5 V)
    11. 7.11 Typical Characteristics
  8. 8 Timing Diagram
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 ON and OFF Control
      2. 9.3.2 Adjustable Quick Output Discharge
      3. 9.3.3 Adjustable Slew Rate
      4. 9.3.4 Power Good (PG) Signal
      5. 9.3.5 Thermal Shutdown
      6. 9.3.6 Short Circuit Protection (TPS22992S)
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Performance Plots
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 接收文档更新通知
    2. 13.2 支持资源
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 术语表
  14. 14Mechanical, Packaging, and Orderable Information

9.1 Overview

The TPS22992 and TPS22992S devices are both single-channel load switches with an 8.7-mΩ power MOSFET designed to operate up to 6 A. The voltage range of the TPS22992 device is 0.1 V to 5.5 V, and the voltage range of the TPS22992S device is 1 V to 5.5 V. A configurable rise time provides flexibility for power sequencing and minimizes inrush current for high capacitance loads.

The switch is controlled by an enable pin (ON), which is capable of interfacing directly with low voltage GPIO signals down to its VIH level of 0.8 V. The TPS22992x device has an optional QOD pin for quick output discharge when switch is turned off, and the fall time (tFALL) of the output can be adjusted through an external resistor. There is a Power Good (PG) signal on the device that indicates when the main MOSFET is fully turned on and the on-resistance is at its final value.

Both TPS22992x devices come with thermal shutdown to ensure protection in high temperature environments. The TPS22992S also integrates overcurrent protection, preventing damage to the device if the output is shorted to ground during operation or start-up.