TIDT313 November   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Load Voltage Regulation
    3. 2.3 Efficiency Data
    4. 2.4 Thermal Images
    5. 2.5 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

2.3 Efficiency Data

Efficiency data is shown in the following table.

Table 2-1 PMP23253 Efficiency Data
PoE Input Voltage (V) PoE Input Current (A) DC/DC Input Voltage (V) Output Voltage (V) Output Current (A) PoE Efficiency DC/DC Efficiency
48 0.034 47.619 15.187 0 0.0% 0.0%
48 0.129 47.499 15.184 0.299 73.3% 74.1%
48 0.227 47.397 15.182 0.6 83.6% 84.7%
48 0.327 47.299 15.18 0.9 87.0% 88.3%
48 0.426 47.205 15.177 1.2 89.1% 90.6%
48 0.525 47.112 15.175 1.501 90.4% 92.1%
48 0.625 47.02 15.173 1.801 91.1% 93.0%
48 0.727 46.931 15.17 2.101 91.3% 93.4%
48 0.829 46.844 15.168 2.401 91.5% 93.8%
48 0.931 46.762 15.166 2.701 91.7% 94.1%
48 1.035 46.675 15.164 3.002 91.6% 94.2%
48 1.139 46.594 15.162 3.301 91.5% 94.3%