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TPS23730: POE++terminal Recommendation

Jimmy Huang
Genius 3165 points
Part Number: TPS23730
Other Parts Discussed in Thread: LM5116, , , TPS2373-4EVM-758, PMP22477, TIDA-050045, TIDA-050023, PMP20859, PMP21103, PMP20878, PMP23253, PMP23287, PMP21318, TPS2372, LM70880

Tool/software:

Hello：

The customer has the following technical support requirements and needs TI's help to provide relevant isolation products and solutions,

Please provide the isolation scheme for POE++terminal (currently the non isolated method of TPS2372-4+LM5116), which requires BT power.

At present, the customer is using the LTC4291-1/LTC4292 chipset, which is suitable for applications with BT power (90W and above). We need to take a look at TI's benchmarking solution, Thanks!!!

TI's recommended solution

 

Quantity

Manufacturer

Manufacturer's Part Number

Part Reference

1

TI

Tps23730   (Support 3 type 51W)

　

1

　

POE++_transformer,Input:36~57v,Output:5V/6A(Supports 30W, if 50W is required, the transformer needs 5V/10A)

　

1

　

TCMT1107 OptoCoupler

　

1

　

TL431IDBVR

　
  • 0
    TI__Mastermind 31831 points

    Hi Jimmy,

    Hope below table can help. These reference design are available in TI.com 

    Reference PD Topo Class Vout Iout Power
    TPS23730EVM-093 TPS23730 ACF 6 12 5 60
    TPS2373-4EVM-758 TPS2373-4 ACF 8 5 14 70
    PMP22477 TPS23730 Flyback 6 12 3.8 45.6
    TIDA-050045 TPS23730 ACF 6 5 10 50
    TIDA-050023 TPS2373-3 Flyback 6 12 4.25 51
    PMP20859 TPS2372-3 Flyback 6 5 6 30
    PMP21103 TPS2373-4  ACF 5 12 2.5 30
    PMP20878 TPS2373-4 ACF 8 24 3 72
    PMP23253 TPS23730 ACF 6 15 3.3 49.5
    PMP23287 TPS23730 ACF 6 24 2.5 60
    PMP21318 TPS2373-4 ACF 8 12 6 72

    Best regards,

    Diang

  • 0 in reply to Diang Xing
    Genius 3165 points

    Hi Xing:

    1. The customer currently wants to use TI's Tps23730 solution. May I ask if there is an EVM board drawing for the isolation solution of this chip? If there is a non isolation solution for this chip, could you also provide it? The customer previously used TPS2372+LM5116, but if it can be made into an isolated and non isolated co lay in the future, it is also possible to replace LM5116 with another chip

    2. The customer requires the original design circuit reference for Tps23730. Currently, only Gerber is available on TI's official website, without the original schematic and PCB files. Can you provide DSN and Allegro files, as well as demo board information for Brd? Thank you

  • 0 in reply to Jimmy Huang
    TI__Mastermind 31831 points

    Hi Jimmy,

    Thanks for your reply. We will get back to you in 3-7 business days.

    Best regards,

    Diang

  • 0 in reply to Diang Xing
    Genius 3165 points

    Hi Xing:

    OK, noted, The customer's project is urgent, So hoping to get your feedback ASAP, Thanks!!!

  • 0 in reply to Jimmy Huang
    TI__Mastermind 31831 points

    Hi Jimmy,

    1. For class-6, you can use TPS23730 as isolated solution.TPS23730 can be non-isolated as low side switching buck but performance is not good as sync Buck. Or you can consider TPS2372-3 + LM70880

    2. I will share you the TPS23730EVM Altium file via email. 

    Best regards,

    Diang