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PMP11281: 4 ports USB universal adapter/charger 2.4A each

Part Number: PMP11281
Other Parts Discussed in Thread: PMP10974, , TPS2559

Is PMP11281 design still valid and ready for wall mounted USB adapter /charger application or it has any problems , I want to use it in my new product (4 ports USB universal adapter/charger 2.4A each). it will be connected all the time 24/7 to the L & N in 40C environment . is PMP10974 more stable ?

best regards,

Mohamed Hussein

  • Hi,

    The difference between PMP10974 and PMP11281 is that PMP10974 uses 2-sw Flyback while PMP11281 uses 1-sw Flyback. Therefore, PMP10974 has about 1% higher efficiency than PMP11281. So PMP10974 supposes to have high life time than PMP11281 because of low component temperature. PD switches like TPS2559 will be required for using PMP10974 on USB devices. The PD switches layout on PMP10974 isn't ideal. Relayout will be required for the PD switches part of PMP10974.

    Regards,
    Sheng-Yang Yu
  • 1-Thank you for the reply.
    2-I will try PMP10974 schematic for the main circuit and regarding to secondary part which using PD switches TPS2559 kindly explain more about your suggestion.
    3- I will use PMP111281 main circuit also to compare the temp. with PMP10974 .
    3- Do you think that using higher VDSbrr mosfet like 700V or 650V with higher current @ 100C will be better ? kindly suggest .
    4- Do you have sample for each model of (PMP111281 &PMP10974 ) for testing ? also if possible to rely on the design for a real product to the market?
  • Hi Mohamed,

    I don't have any PMP11281 or PMP10974 board available right now. Nor does the production information.

    I have your email. I will loop product line marketing engineer in the communication email with you. He should have some information to be shared.

    Regards,

    Sheng-Yang Yu