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TPS2372: Difference between TPS2372 and TPS2373

JH Shin
Guru 11480 points
Part Number: TPS2372
Other Parts Discussed in Thread: TPS2373,

Tool/software:

Hello,

My customer wants to know the difference between TPS2372 and TPS2373. Could you please tell us the difference between the two products?

Thank you.

JH

  • 0
    TI__Mastermind 37111 points

    Hi JH,

    Thanks for reaching out!

    In short if you need power passthrough the 37-57V or dual PD, it is recommended to use TPS2372. If you need a downstream DC/DC circuit using low voltage input or no startup DC/DC controller, or primary side adapter + PoE, it is recommended to use TPS2373.

    TPS2372:

    - AUTCLS: Autoclass function. It can allow PSE reallocate the power after turning on a short time. This is not common to be used.   

    TPS2373:

    - VC_IN & VC_OUT: advanced startup pins. Provide a ~15V start up voltage to drive a low voltage input PWM controller, which cannot directly get the start up input from 57V PoE DC bus; VC_IN needs to be tied with a resistor divider when not used. 

    -APD: adapter priority pin. When you have a 24 - 57V DC adapter, and you want the dual power sources of PoE & DC adapter you can use this pin. This pin will make DC adapter priority higher than PoE.

    Best regards,

    Diang