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Power Path
Related Posts

  • Forum Post: Re: TPS65070 power path

    ChristianHoefling
    You are correct. In case AC or USB is used, SYS output voltage should ramp up as soon as AC/ USB voltage is applied. The converter can be enabled afterwards with falling edge and /PB_IN or pulling up POWER_ON && high level on /PB_IN. What is the SYS voltage you are seeing when you apply...
    on Aug 3, 2010

  • Forum Post: Re: TPS65073x DCDC3 Vout Range @ 1.5A

    Daniel Acevedo
    The power path voltage drop is specified in the datasheet for AC (Isys=1A), BAT (Isys=1A) and USB (Isys=500mA and 800mA):
    on Mar 28, 2011

  • Forum Post: Re: TPS65070 Powered From 3.3V on SYS?

    Scott Burton
    Thank you very much Daniel! Could you please clarify just a couple of your responses? 4/ From another post I understand that, with the input voltage applied to SYS, I should connect the AC, USB and BAT inputs to GND; connect TS to GND through a 1kohm resistor; and connect ISET to GND through...
    on Apr 21, 2011

  • Forum Post: TPS65070 Powered From 3.3V on SYS?

    Scott Burton
    Hello Forum, In my TPS65070 design I plan to power the TPS65070 from a 12V source via a DC/DC converter. This DC/DC converter output could be either 5V or 3.3V, since I already require both of these rails for other loads in my design. However, I’d prefer to use 3.3V since the datasheet curves indicate...
    on Apr 20, 2011

  • Forum Post: TPS65073 -- won't power off properly or turn back on

    Quentin Davis
    I'm trying to use the TPS65073, and when trying to turn it off I apparently can't get out of the state POWER OFF 3 from Figure 33 of the datasheet -- SYS is still powered and it won't turn back on unless I remove all power sources. As shown in the figure below, the PB_IN node is pulled...
    on Aug 26, 2011

  • Forum Post: TPS6507x Power Path

    ChristianHoefling
    Question : The TPS6507x datasheet does not explain the operation of the Power Path in detail. Can you please explain how the Power Path is regulating the Charge Current voltage under der following conditions below? Case 1: USB (or AC) input present and Battery is not Case 2: USB (or AC) input...
    on Feb 26, 2010

  • Forum Post: TPS65073 -- won't turn on without a battery

    Quentin Davis
    I'm trying to use the TPS65073 in a battery-powered product that can also be attached to an "AC" power source or USB power. I'm worried about the condition where the battery is dead/broken, but the user still wants to turn it on via USB power or wall-wart power. As shown in the figure...
    on Aug 31, 2011

  • Forum Post: Maximum output current of TPS65070

    Pankaj katiyar
    Hi All, I am planning to use TPS65070 to power up OMAP L138. as per there recommendation I have configured DCDC1 to 3.3v output. If I go through the datasheet it list two possible current paramtere 1. Minimum Output current which is 600 mA This is must drain current to have good load regulation...
    on Feb 28, 2012

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