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UCC28881: use 2 in parallel?

HS FAE Germany
Mastermind 32710 points

Part Number: UCC28881
Other Parts Discussed in Thread: UCC28910

Hello,
customer has following requirements:

Vin 40 -140VDC, Vout 12V, Iout: 500mA, non-iso (no use of transformator)

Can we use 2-3 UCC28881 in parallel? Other ideas?

Regards, Holger

  • 0
    TI__Guru* 86286 points

    Hello,

    The UCC28881 devices were not design to operate in parallel.  No one at TI has paralleled these devices as far as I know.

    You might consider using the UCC28910 device setup in a high side buck instead.  It should be able to easily handle the 500 mA output current.

    Regards,