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Original question:

TPS23521: Request the Reference Design for -48V, 1.6KW

TPS2490: Can TPS2490 be used for negative high voltage oring.

Navneet Diwakar
Prodigy 80 points
Part Number:

Please tell about the connections of FET.

  • 0
    TI__Guru** 105811 points

    Hi Navneet,

    Can you share your system block diagram, application, end equipment to check TPS2490 suitability.

    We have dedicated -ve hot-swap controllers, any specific reason for considering TPS2490 ?

    BR, Rakesh

  • 0
    Prodigy 80 points

    the requirement of oring two -48V supply. I want the oring circuit with enable pin. Because other input is -36 to -75V .

    -36to -75 V ored with -48V. [quote user="Navneet Diwakar"]

    Part Number: TPS2490

    Please tell about the connections of FET.

  • 0 in reply to Navneet Diwakar
    TI__Guru** 105811 points

    Hi Navneet,

    I suggest to use TPS23525 as below with additional MOSFET Q4 as control switch. However note, with Q4 ON and when the second channel voltage is >-48V, all the load current will be supplied by the second channel.

    Please get TPS23525 EVM and do the functional test.

    BR, Rakesh