AN2783 Datasheet, PDF (41/47 Pages) STMicroelectronics – PM8800 demonstration kit for standard and high power PoE

AN2783
Test results
Figure 49. Switch between 48 V PoE and 24 V Figure 50. Back to 48 V removing the 24 V
AUXII with 3.3 V at 2 A
AUXII voltage with 3.3 V at 2 A
Ch1 = output voltage, Ch2 = internal primary voltage, Ch3 = voltage across the hot-swap
MOSFET, Ch4 = AUXII input current
Figure 51. Switch between 48 V PoE and 12 V Figure 52. Back to 48 V removing the 12 V
AUXII with 3.3 V at 2 A
AUXII voltage with 3.3 V at 2 A
Ch1 = output voltage, Ch2 = internal primary voltage, Ch3 = voltage across the hot-swap
MOSFET, Ch4 = AUXII input current
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