lm5072mhx-80 National Semiconductor Corporation, lm5072mhx-80 Datasheet - Page 23

• Manufacturer Part Number: lm5072mhx-80
• Description: Integrated 100v Power Over Ethernet Pd Interface And Pwm Controller With Aux Support
• Manufacturer: National Semiconductor Corporation

Application Example #3:
Figure 20 shows an application example of the non-isolated version of Figure 18 . This non-isolated version saves many parts
used in the isolated feedback example shown in Figure 18. Similar simplification also applies to the non-isolated version of Figure
19.
Application Example #4
Figure 21 shows an application example of a PD solution using the buck topology. Q2, a dual PNP transistor, is employed in the
output voltage sensing to achieve temperature compensation for the regulated output.
FIGURE 20. PD Solution with Non-Isolated Flyback Topology
FIGURE 21. PD Solution with Buck Topology
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