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The TPS2412/13 controller, in conjuncTIon with an external N-channel MOSFET, emulates the funcTIon of a low forward voltage diode. The TPS2412/13 can be used to combine mulTIple power supplies to a common bus in an N+1 configuraTIon, or to combine redundant input power buses. The TPS2412 provides a linear turn-on control while the TPS2413 has an on/off control method.
Applications for the TPS2412/13 include a wide range of systems including servers and telecom. These applications often have either N+1 redundant power supplies, redundant power buses, or both. Redundant power sources must have the equivalent of a diode OR to prevent reverse current during faults and hotplug. A TPS2412/13 and N-channel MOSFET provide this function with less power loss than a schottky diode.
