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TPS27081A: On off switch

PA3040
Intellectual 450 points
Part Number: TPS27081A
Other Parts Discussed in Thread: TPS22915, TPS22918

TPS27081A:

Dear All,

Please advice to use  TPS27081A: Ic as a On Off switch 

Can I use above IC when switch press that connected to on off pin the system should on and once again press it the system should off 

please advice 

  • 0
    TI__Genius 10855 points
    Hi Dayan,

    The TPS27081A is a combination NFET and PFET device. As such, the device can be used as an ON/OFF device such that when the GPIO is asserted high, then current can flow from VIN to VOUT.

    For a device with additional features such as slew rate control, quick output discharge, etc, I would consider looking at the TPS22915 or the TPS22918.

    Thanks,
    Arthur Huang
  • 0 in reply to Alpha H
    Intellectual 450 points

    Dear Arthur Huang

    Thanks for the reply and info

    As you know    when GPIO become HIGH then it remaining HIGH until it becomes LOW by the program But in my case I am using Micro switch to ON and OFF , In this case when switch pressed  it goes HIGH and it goes LOW once it released  soon 

    Please let me know that in the above condition current flow from VIn  to Vout even switch is released and in the next switch pressed Vin and Vout should disconnected

    Please advice 

    Thanks in advanced 

     

  • 0 in reply to PA3040
    TI__Genius 10855 points
    Hi Dayan,

    The load switch doesn't have the functionality of turning on when first enabled and turning off when enabled again. Can you use a logic signal (such as a flip-flop) to invert the output signal whenever the switch/button is pressed?

    Thanks,
    Arthur Huang