SLVSGC1B December   2021  – August 2024 TPS63901

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Trapezoidal Current Control
      2. 6.3.2 Device Enable and Disable
      3. 6.3.3 Soft Start
      4. 6.3.4 Input Current Limit
      5. 6.3.5 Dynamic Voltage Scaling
      6. 6.3.6 Device Configuration (Resistor-to-Digital Interface)
      7. 6.3.7 SEL Pin
      8. 6.3.8 Short-Circuit Protection
        1. 6.3.8.1 Current Limit Setting = 'Unlimited'
        2. 6.3.8.2 Current Limit Setting = 1 mA to 100 mA
      9. 6.3.9 Thermal Shutdown
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Inductor Selection
        2. 7.2.2.2 Output Capacitor Selection
        3. 7.2.2.3 Input Capacitor Selection
        4. 7.2.2.4 Setting The Output Voltage
      3. 7.2.3 Application Curves
  9. 8 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Support Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

6.3.4 Input Current Limit

The device can limit the current drawn from its supply, so that it can be used with batteries that do not support high peak currents. The input current limit is active during normal operation and at start-up to avoid high inrush current. The device has eight current limit settings:

  • 1 mA
  • 2.5 mA
  • 5 mA
  • 10 mA
  • 25 mA
  • 50 mA
  • 100 mA
  • Unlimited

CFG1 and CFG2 pins select which setting is active (see Section 6.3.6).