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TPS25868-Q1: reverse current blocking

Charles Zhang1
Intellectual 2940 points
Part Number: TPS25868-Q1
Other Parts Discussed in Thread: TPS25858-Q1, TPS25869-Q1

Hi Team,

Does TPS25868-Q1 have reverse current blocking funtion on USB output ports and the internal MOSFETs?

Regards,

  • +1
    TI__Mastermind 18556 points

    Hi Charles,

    Yes, you can refer to the data sheet.

    BR,

    Kuno

  • 0 in reply to Kuno Wu
    TI__Intellectual 2940 points

    Hi Kuno, 

    Got it, thanks.

    BTW, I have another question about USB load switch.

    My customer needs to desgin for both USB type C and USB type A(support BC1.2), so I think TPS25868-Q1 should be a suitable solution.

    However, not like TPS25869-Q1, TPS25858-Q1 doesn't have USB load switch control feature, I am wondering if my cusomter needs additional load switches to control the ON/OFF of USB portA and port B repectively?  

  • 0 in reply to Charles Zhang1
    TI__Mastermind 18556 points

    Hi Charles,

    Yes, you can use the TPS25868-Q1 to meet this requirement, and this device only has a total EN switch indeed, if you pull up this EN, port  B will be output 5.1V , for the port A, when it has a Rd in CC pin, it will output 5.1V too, and you do not need to add a additional load switches for controlling the port A and port B.

    BR,

    Kuno