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Original question:

TPS2388: Find BOOST and PSE

TPS2388: Single Port non standard PSE Controller IC

Karthikesh M
Prodigy 10 points
Part Number: TPS2388
Other Parts Discussed in Thread: TPS23861, , ,

Please Suggest a Part number for a single port PSE IC with 12-47V support Same AS TPS23888

  • 0
    TI__Mastermind 34736 points

    Hi Karthikesh,

    Which 802.3 spec (af, at, or bt) and highest class power (from 0 through 8) is needed for your application? 

    If you're looking for a PSE similar in features to TPS2388, then I recommend either TPS23861 or TPS23882(B), I'll include the link below.

    TPS23861 is a Type-2 (2-pair only), 802.3af PSE devices that comes with 4 channels and includes autonomous mode (no host/MCU required for operation).

    TPS23882(B) is a Type-3 (2-pair only), 802.3bt PSE devices that comes with 8 channels,  and for the 'B' variant is also comes with autonomous mode. 
    If you have any further questions or need more clarification, please let us know! 

    Thanks and Regards,

    Raymond Lin

  • +1 in reply to Raymond Lin
    Prodigy 10 points

    Hai Raymond,

    I am looking for 802.3 af/at ,type-2, 2 pair (POE+) IC for handling a single channel . Whether any IC available with same spec for non standard POE voltage of 24 and 12V.

  • +1 in reply to Karthikesh M
    TI__Mastermind 34736 points

    Hi Karthikesh,

    Karthikesh M said:
    same spec for non standard POE voltage of 24 and 12V.

    Just to clarify, are you looking for a PSE solution that can output 12V-24V on the VPWR line to the RJ-45 and Ethernet cable? If so, unfortunately we do not have any discrete/integrated PSE solution that can output that low of a voltage range since it will trigger UVLO (Under-Voltage Lockout). The typical VPWR operating range is from 44V-57V is we highly recommend to keep VPWR within this range. It's possible to use an adapter or some other system solution to achieve that voltage range but our PSE by themselves will not be able to. 

    For Type-2, 2-pair PSE follow 802.3af/at specs, I recommend TPS2388 or TPS23861. TPS2388 runs in either manual or semi-auto mode (requires host) and includes 8-channels. Reiterating the features of TPS23861, includes 4 channels and also has autonomous mode (no host/MCU required for operation) along with manual, semi-auto and automatic modes (these modes require host). For your application, I would recommend using TPS23861 if you don't need to support that many channels/ports. 

    Thanks and Regards,

    Raymond Lin