SLUUCS6A february   2023  – august 2023 UCC14340-Q1 , UCC14341-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 U1 Component Selection
    2. 1.2 Pin Configuration and Functions
  5. 2Description
    1. 2.1 EVM Electrical Performance Specifications
  6. 3Schematic
  7. 4EVM Setup and Operation
    1. 4.1 Recommended Test Equipment
    2. 4.2 External Connections for Easy Evaluation
    3. 4.3 Powering the EVM
      1. 4.3.1 Power on for Start-up
      2. 4.3.2 Power off for Shutdown
    4. 4.4 EVM Test Points
    5. 4.5 Probing the EVM
  8. 5 Performance Data
    1. 5.1  Efficiency Data
    2. 5.2  Regulation Data
    3. 5.3  Steady State Input Current
    4. 5.4  Start-up Waveforms
    5. 5.5  Inrush Current
    6. 5.6  AC Ripple Voltage
    7. 5.7  EN-to-/PG Timing
    8. 5.8  RLIM
    9. 5.9  Fault Protection
      1. 5.9.1 Output UVLO
      2. 5.9.2 Output OVP of COM-VEE
    10. 5.10 Shutdown
    11. 5.11 Thermal Performance
  9. 6Assembly and Printed Circuit Board (PCB) Layers
  10. 7Bill of Materials (BOM)
  11. 8Revision History

4.1 Recommended Test Equipment

  • VBIAS: DC power supply1: 5 V, 10 mA
  • VIN: DC power supply: 20 V, 500 mA
  • IVDD: Electronic load or fixed resistor: 25 V, 200 mA
  • IVEE: Electronic load or fixed resistor: 5 V, 10 mA
  • (3) DVMs measuring DC voltage < 30 V (V3 must be a battery powered DVM)
  • (3) DVMs measuring DC current < 200 mA on IVDD, IVEE, <300 mA on IVIN
  • Oscilloscope: 4 channel, 500 MHz or better, voltage probes, current probes
  • Minimum wire gauge 20 AWG to 22 AWG or better
  • Thermal camera (optional) or thermocouple to measure U1 case temperature