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Asking for the 12V 2:1 power switch recommendation

SHH
Mastermind 32156 points
Other Parts Discussed in Thread: TPS2121


Hi Team,
Customer is looking for the 12V 2:1 switch recommendation.

Would you please recommend the proper solution for this?

the power switch is 12V/2A. 2:1


BR,
SHH

  • 0
    TI__Genius 10855 points

    Hi SHH, 

    Thanks for reaching out on E2E!

    This looks like a perfect opportunity for the TPS2121 Power MUX. This device can support voltages up to 22V, and has additional safety features such as thermal shutdown, controlled slew rate, current limit, and overvoltage protection.

    Let me know if you have any questions!

    Thanks,

    Arthur Huang

    To find the latest information on Power Switches, visit www.ti.com/powerswitch

    Please click "This resolved my issue" button if this post answers your question.

  • 0 in reply to Alpha H
    TI__Mastermind 32156 points

    Hi Arthur,
    if customer would like to use MCU to control the switch, just connect GPIO to SEL pin. right?
    Any other pull up or pull down circuit required?

    What is the OV suggest for 12V/2A case?

    BR,
    SHH

  • 0 in reply to SHH
    TI__Genius 10855 points
    Hi SHH,

    Correct, the GPIO can be connected to the SEL pin. As long as you can toggle SEL above and below VREF (1.1V), it should be fine.

    The OVx voltage will be up to your own configuration. If there's the potential for the input voltage to rise out of spec, then I suggest configuring the OVx as such. In some scenarios, OVx isn't required.

    Thanks,
    Arthur