Power-Over-Ethernet Controller

    April 1, 2005
    Next-generation power-management IC aids in the design of IEEE 802.3afcompliant powersource equipment (PSE).

    The quad-port power manager can support operation at 40 to 125°C and up to 128 ports in automatic or port-management mode, and manual operation. The TPS2384 gives low RDSon through use of integrated power field effect transistors (FETs). Paired with a microcontroller, the unit can perform advanced power-management functions and detect legacy capacitance loads. Slope detection of the power device signature resistor allows accurate sensing of demands, even when series steering diodes are present.

    Texas Instruments Inc.
    14950 FAA Blvd.,
    Ft. Worth, TX 76155
    (800) 477-8924
    ti.com

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