The TPS241x controller, in conjunction with an external N-channel MOSFET, emulates the
function of a low forward-voltage diode. The device 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 TPS2410
provides a linear turn-on control while the TPS2411 has an on/off control method.
Applications for the TPS2410x 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. These redundant power sources must have the equivalent of a diode OR to prevent reverse
current during faults and hotplug. A TPS241x and N-channel MOSFET provide this function with less
power loss than a schottky diode.
Accurate voltage sensing, programmable fast turn-off threshold, and input filtering allow
operations to be tailored for a wide range of implementations and bus characteristics.
A number of monitoring features are provided to indicate voltage bus UV/OV, ON/OFF state,
and a shorted MOSFET gate.