SLVSDO5F July   2017  – December 2021 TPS22916

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Switching Characteristics
    7. 6.7 Typical Characteristics
      1. 6.7.1 Typical Electrical Characteristics
      2. 6.7.2 Typical Switching Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 On and Off Control
      2. 8.3.2 Fall Time (tFALL) and Quick Output Discharge (QOD)
      3. 8.3.3 Full-Time Reverse Current Blocking
    4. 8.4 Device Functional Modes
  9. 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 Maximum Inrush Current
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YFP|4
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.2.2.1 Maximum Inrush Current

When the switch is enabled, the output capacitors must be charged up from 0 V to VIN voltage. This charge arrives in the form of inrush current. Inrush current can be calculated using the following equation:

Equation 2. IRUSH = CL × SRON
Equation 3. IRUSH = 47 μF × 3.2 mV/μs
Equation 4. IRUSH = 150 mA

The TPS22916x offers multiple rise time options to control the inrush current during turn-on. The appropriate device can be selected based upon the maximum acceptable slew rate which can be calculated using the design requirements and the inrush current equation. In this case, the TPS22916C provides a slew rate slow enough to limit the inrush current to the desired amount.