TIDUFA0A February   2025  – March 2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Switching Frequency
      2. 2.2.2 Design Size
      3. 2.2.3 Gate Resistors
      4. 2.2.4 Output Ripple
      5. 2.2.5 FET Placement
    3. 2.3 Highlighted Products
      1. 2.3.1 TPS7H5004-SP
      2. 2.3.2 TPS7H6023-SP
  9. 3Hardware, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
      1. 3.3.1 Efficiency Graphs
      2. 3.3.2 Bode Plot
      3. 3.3.3 Switching
      4. 3.3.4 Output Ripple
      5. 3.3.5 Gate Signals
      6. 3.3.6 Start-Up Sequence
      7. 3.3.7 Load Transient
      8. 3.3.8 Thermal Images
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author
  12. 6Revision History

2.3.1 TPS7H5004-SP

The TPS7H500x-SP family of high speed radiation hardness-assured PWM controllers. The controllers provide a number of features that are beneficial for the design of DC-DC converter topologies intended for space applications. The controllers have a 0.613V +0.7%/–1% accurate internal reference and configurable switching frequency up to 2MHz. Each device offers programmable slope compensation and soft-start.

The TPS7H500x-SP series can be driven using an external clock through the SYNC pin or by using the internal oscillator at a frequency programmed by the user. The controller family offers the user various options for switching outputs, synchronous rectification capability, dead time (fixed or configurable), leading edge blank time (fixed or configurable), and duty cycle limit. Each device in the TPS7H500x-SP series is available in both a 22-pin CFP ceramic package and a 24-pin TSSOP plastic package.