TIDT327 may   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Input Voltage Range and Current Requirements
    2. 1.2 Required Equipment
  6. 2Testing and Results
    1. 2.1 Efficiency and Power Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
    5. 2.5 EMI
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

2.3 Thermal Images

Thermal images are shown in the following figures. All figures were taken after a 30 minute soak in a container with no external fan.

GUID-20230306-SS0I-WKVZ-NH3Q-QPPCD6N6RC2X-low.jpg
90 VAC full load, Bx1 = Diode bridge; Bx2 = Qclamp;
Bx3 = Qpri; Bx4 = XFMR; Bx5 = SR FET
Figure 2-3 Thermal Image
GUID-20230306-SS0I-XXSQ-F0XC-T6GGPCZT2LPR-low.jpg
120 VAC full load, Bx3 = Diode bridge;
Bx2 = Qclamp; Bx1 = Qpri; Bx5 = XFMR; Bx4 = SR FET
Figure 2-4 Thermal Image