DC2579A

DC2579A demonstration circuit features the LTC®4279, an autonomous single port power sourcing equipment (PSE) controller, configured in its UltraPWR mode. UltraPWR mode aggressively turns on and powers custom high-power PDs requiring high inrush and/or operational currents. The DC2579A requires a single power supply and provides power on all four Ethernet pairs to valid detected PDs. Jumper selections are provided on the DC2579A for setting the LTC4279 LEGACY pin, DUALPD pin and MID pin. A pushbutton switch resets the LTC4279. LEDs indicate main supply power and output power are up. Data-in RJ45 connects to a PHY data source and data-and-PowerOut RJ45 connects to a custom high-power PD.