TIDT423 December   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Voltage Regulation
    3. 2.3 Efficiency Data
    4. 2.4 Thermal Images
    5. 2.5 EMI
  7. 3Waveforms
    1. 3.1 Start-up and Shut Down Waveform
    2. 3.2 Switching
      1. 3.2.1 Voltage Stress
    3. 3.3 VCC Self Bias
    4. 3.4 Output Voltage Ripple
    5. 3.5 Load Dynamic Response
    6. 3.6 Peak Power
    7. 3.7 Short-Circuit Protection
    8. 3.8 Output Over Voltage Protection

Description

This reference design is a 65W, 20V fixed output voltage AC-DC power supply design with integrated flyback and Gallium nitride (GaN). This design can deliver 65W full rated power across 90VAC to 264VAC and achieve 93% efficiency at 90VAC. The design can meet efficiency standards and regulations such as DoE Level VII and CoC V5 Tier 2 efficiency standard for average efficiency across 25%, 50%, 75%, 100% and standby power consumption. The design can achieve 2.3W per cubic centimeters and eliminate auxiliary winding as well as associated VCC rectifier circuity. The design can also support a 100W peak power capability for 4ms.