PMU

Browse by Tags

PMU

Welcome to the PMU Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

Sign In to Post
Tags
You have subscribed to this tag. To view or manage your tag subscriptions, click here.   Close
You have unsubscribed from this tag. To view or manage your tag subscriptions, click here.   Close
You are currently viewing:
PWRON
Related Posts

  • Forum Post: TPS65950/30/20: VBAT level for power on

    Gandhar Dighe
    FAE question/discussion: Q: If VBAT is higher than 3.2V and in master mode the device will go to active mode as long as PWRON is set to high. Lets assume that 2.8V< VBAT < 3.2V then I would think that if PWRON is toggled from low to high then it goes from waiton to active. A: There are...
    on Apr 2, 2009

  • Forum Post: Re: TPS65950

    Gandhar Dighe
    Hi Gandharva, Let me know if the following post helps - http://community.ti.com/forums/p/7010/27074.aspx#27074 Regards, Gandhar.
    on Aug 18, 2009

  • Forum Post: Edge trigger for PWRON

    Antony Lin
    In DataManual, it's said that " The PWRON signal is debounced 1024 ´ CLK32K (maximum 1026 ´ CLK32K) falling edge in master mode." Now if we press PWRON button to low before insert main battery (VBAT), the platform will swtich on when we insert VBAT. Since the falling edge...
    on Sep 15, 2009

  • Forum Post: Re: TPS65930 question

    Gandhar Dighe
    Please refer the following post, it will be helpful: http://e2e.ti.com/forums/p/11073/43115.aspx#43115
    on Oct 26, 2009

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Gandhar Dighe
    Hi Pev, Please refer table 5-12, the device will restart under the conditions you mention (and not power-off). Section 5.3.2.1 is a typo and I will correct it. Hi Sean, Setting DEVOFF is the correct way to power off the device. There is no special need in software configuration, STARTON_PWON...
    on Jan 7, 2010

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Sean Heitz
    STARTON_PWON is an indication when a keypad button is pressed. we are not using the keypad controller. We have our power button directly connected to the PWRON signal going to the TPS65950. When the documentation refers to keypad button, is it refering to the keypad controller section of the TPS65950...
    on Jan 7, 2010

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Gandhar Dighe
    Hi, STARTON_PWON refers to PWRON only. I need to fix the typo in the description. Regards, Gandhar.
    on Jan 8, 2010

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Sean Heitz
    Can you point me to or provide the best reference material (most informative and descriptive) for the power management code used in Android, 2.6.27 kernal?
    on Jan 9, 2010

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Sean Heitz
    When I set the STARTON_PWON bit and I removed the power managment stuff from our BSP, I was able to power up by pressing the power button. So it seems the power management software(used in android kernal 2.6.27) is handling the warmrestart coming back from the omap and not ignoring it. So if you could...
    on Jan 11, 2010

  • Forum Post: Re: power down and up of the omap(3530) using the TSP65950

    Sean Heitz
    If I don't have the power management sw I can power down and then hit the power button and it powers back up completely. When I add in the power management SW I can power down, but then when I attempt to power up it will power the OMAP up when I hit the button, but that is it. the display and other...
    on Jan 13, 2010

  • Forum Post: TPS65920 PWRON or GPIO Voltage Applied with VBAT=0

    Charles McCarthy
    Hello! I have some questoins about applying voltages to signals on the TPS65920 when the VBAT supply is at zero. 1) Is it okay to have the VBAT voltage at zero but still have a voltage applied to the PWRON signal? 2) If it is okay, what would be the voltage limits on the PWRON signal? 3) Will...
    on Feb 16, 2010

  • Forum Post: Re: TPS65950/30/20: VBAT and PWRON connection guideline

    Gandhar Dighe
    Hi, For slave mode this should not matter because the battery is always connected and PWRON acts as a level trigger to turn ON/OFF the device. Hope this helps. Regards, Gandhar.
    on Jul 16, 2010

  • Forum Post: [TPS65921] PWRON long press (8sec) function

    Antony Lin
    In TPS65921, is "pressing PWRON for 8 seconds" a switch-off event or restart event? According to my measurement, pressing PWRON for 8 sec in TPS65921 will only switch off TPS65921. But in TPS65950, it will restart TPS65850 (NRESPWRON low and high immediately.) Please help to confirm the...
    on Aug 4, 2010

  • Forum Post: power down and up of the omap(3530) using the TSP65950

    Sean Heitz
    I'm setting the DEVOFF bit in the P1_SW_EVENTS register to power off the OMAP. So when I hit the power key it shuts down my unit but it will not power back up no matter what I do with the power button. We have our power button connected to the PWRON pin, so when the power button is pressed the...
    on Jan 5, 2010

  • Forum Post: [TPS65950] starton_xxx in CFG_Px_TRANSITION

    Antony Lin
    Q1. If all the bits (starton_xxx) in CFG_Px_TRANSITION are all set to '0', is there any way other than removing BKBAT to swtich on TPS65950 after VBAT is removed(enter backup mode) and then inserted? Q2. In TRM, power-on reset can be achieved as below, "Power-on reset: .....
    on Jan 5, 2011

  • Forum Post: CLKEN not de-asserted down when SYS_CLKREQ on DM3730 is de-asserted

    David Stewart
    Normal 0 false false false MicrosoftInternetExplorer4 In order to reduce power consumption when our platform is suspended (RETENTION OFF MODE), we are trying to get the TPS65950 to de-assert CLKEN when the DM3730 goes into an OFF mode...
    on Apr 21, 2011

  • Forum Post: TPS65910 power on/off via PWRON push-button

    Jun Feng Xu
    TPS65910 PWRON pin link a push-button to realize power on/off ? It is how to realize the switch power ? Need to give it to write programs ? Now, I press the buttons above 8 seconds,but cannot shutdown,it is only new start. I want to know the power on/off process of realization ?
    on Jun 4, 2011

  • Forum Post: TPS65950/30/20: Hardware power ON logic

    Gandhar Dighe
    FAE question and communication: Q: A customer of mine uses the TPS65930 together with the OMAP device. He wants to achieve a simple task: via an external signal at pin PWRON he wants to switch on the system as well as switch off. He could not get the system working. Can you please help me in describing...
    on Jun 19, 2009

  • Forum Post: Re: TPS65950/30/20: Hardware power ON logic

    Andrey Rublyov
    Hi, I'm a bit confused because of in TPS65950 manual there is written that PWRON button press time should be 8s or more to generate OFF->ACTIVE hw event. In my case the board wakes immediately after press. I configured P1 transition and DEVOFF bit to power off the device. Where PWRON...
    on Feb 21, 2012

  • Forum Post: PWRON in slave mode on TPS65930.

    adriano martins
    Hi all, I have a processor module with DM3730 powered by TPS65930. I have some issues about PWRON pin. I know that TPS65930 is configured as master mode. For my application, I wants DM3730 boot, when pwron button is pressed, instead detection a valid Vbat. My question is: Is it possible on master...
    on Dec 12, 2012

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use