Power Management
12

Browse by Tags

Power Management

Welcome to the Power Management 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".

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:
TPS63030
Related Posts

  • Forum Post: Re: Supplying TPS61200 with a single solar cell

    Chris Glaser
    The TPS61200 is properly regulating to its setpoint--2.5V. R1 and R2 set this voltage. Most likely, the MPPT circuit is always feeding some current into the FB node which would alter the voltage on the pin and cause the TPS61200 to regulate to a different level. I also noticed that C_GND and P_GND are...
    on Mar 4, 2010

  • Forum Post: Re: TPS63031 - Possible excessive current consumption

    Michael Day
    Can you confirm that you have connected PS/SYNC to ground to enable power save mode? Do you see the same behavior on all boards, or just specific boards? Is there a specific input voltage where you see the incorrect behavior, or do you see the problem across the entire 3.0V to 4.2V input. Does the problem...
    on May 18, 2010

  • Forum Post: Need Power Path IC for battery system

    skanuri
    Hi, I am designing a circuit to increase the usability of a single cell lithium battery by using TPS63030 buck-boost converter to give adjustable output. Since this will be packaged with the battery, I need to design a way to charge the cell inside the target device with only two power wires. Is there...
    on Jun 8, 2010

  • Wiki Page: TPS63000 Buck/Boost Transition

    Michael Day
    Q: TPS63000 Buck/Boost Transition by 1294176 Team, Can you please comment on the buck to boost transition point in terms of input voltage vs. output voltage for the TPS63000? In particular, does this behavior depend upon the load current? A: Re: TPS63000 Buck/Boost Transition by 10449 ...
    on Sep 9, 2010

  • Forum Post: Re: TPS63031 - Possible excessive current consumption

    Michael Day
    I also see that your schematic shows the output capacitor drawn as a tantalum or electrolytic. I recommend ceramic output capacitors. If you choose a tantalum or aluminum electrolytic, please place a high quality ceramic capacitor directly at the output of the TPS63030. Please refer to the capacitor...
    on Oct 4, 2010

  • Wiki Page: TPS63030 output ripple for PWM MODE

    Anthony Fagnani
    Q: On the std 63030 EVM (HPA417) why is there output ripple, shown in the picture, under the following conditions: Vin = 4.5V Vout = 3.3V. Iout = 100mA. Power save mode is OFF When input voltage is less than 4.4V or greater than 4.6 V the ripple is gone. A: The ripple will only occur at the...
    on Oct 6, 2010

  • Wiki Page: TPS63030 Startup Enable Time Delay

    Michael Day
    Q: TPS63030 Startup Enable Time Delay by 12948 A: Re: RE: TPS63030 Startup Enable Time Delay by 1169162 The startup behavior shown in the scope plot is expected. The TPS63030 shows a delay between EN pin goes high and startup of the converter at - first startup - every startup when...
    on Oct 18, 2010

  • Forum Post: TPS63030 (Vout = 3.0V) : Input current drawn from the supply voltage source

    Nikolaos Agianniotis
    Hi! Attached you can find the circuit around the TPS63030. Its output voltage is configured at 3.0V. When the device is put in sleep mode, the output current drawn from the regulator is 30uA @ 3.0V, thus the output power is around 90uW. The TPS63030 is in "Power Save Enabled" mode. I would...
    on Dec 22, 2010

  • Forum Post: Re: TPS63031 Voltage difference between Power- and Control-Stage

    Michael Day
    The TPS63030 VIN and VINA pins can be shorted together externally. A better option is to allow VINA to be powered through VIN through the internal resistor designed to connect these two pins. You need an additional filter capacitor with this method. This provides a cleaner voltage rail to power the TPS63030...
    on Jan 24, 2011

  • Forum Post: Re: TPS63031 Voltage difference between Power- and Control-Stage

    Bill Johns
    Hello In this application the microcontroller can control EN of the TPS63030. The EN pin can be higher than VIN or VINA and there should be no problem up to 5.5V. Bill
    on Jan 24, 2011

  • Forum Post: Re: TPS63010 - Is the part capable of output current 2A

    Thomas Hoffmann
    Hi Poh Leong, what you are asking is related to physics. When you operate from a voltage below you desired output voltage, than the converter operates in boost mode. Basically the current drive capability is related to the switch current inside the chip. In a simplified way think of it like POUT can...
    on Feb 11, 2011

  • Wiki Page: TPS63xxx - minimum duty cycle in buck mode

    Chris Glaser
    All of the TPS63k devices have a minimum duty cycle in buck mode. This is a result of needing enough time to sample the current for the average current mode control. The minimum duty cycle is 30% typical and 40% maximum, as noted in the TPS63020 datasheet. This shouldn't be an issue in most...
    on Mar 4, 2011

  • Forum Post: Re: tps63020 Vout deviation in power save mode

    Daniel Acevedo
    The TPS6302x is expected to have a higher output voltage in power save (PFM) mode. This prevents the output voltage from dipping below the set output when a load is applied. In PFM mode, the feedback is between two points near .500V and .525V which is why the average output is measured at .512...
    on Apr 28, 2011

  • Wiki Page: TPS63020 Vout deviation in power save mode

    Daniel Acevedo
    Q: TPS63020 Vout deviation in power save mode by 1433869 Hi: Sorry need you guys help. 1. Could you provide Vout’s deviation in power save mode? 2. Do you have formula about estimating Vout range in power save mode? 3. Why Vout in save mode is a little higher than PWM mode's...
    on May 5, 2011

  • Forum Post: Re: Problem with power supply design with TPS63031 and TPS3619-33

    Chris Glaser
    Your schematic looks ok but your waveforms are unexpected. Particularly, the picture of Vin in the last picture. Could you post your board layout? How long is the cable from your power supply to the board? Could you try adding more input capacitance to the board--say 100uF? You need to have a steady...
    on May 16, 2011

  • Forum Post: TPS63031 regulation in power save mode?

    D��cio Gazzoni
    Hello, I had a previous version of my board I used the TPS63031 with power save mode disabled (PS/SYNC pin wired to VIN). The output voltage was perfectly regulated to 3.3 V. In a new version of the same board, I kept the same basic circuit and changed only the power save mode to enabled by wiring...
    on Jun 9, 2011

  • Forum Post: Re: TPS63031 regulation in power save mode?

    Daniel Acevedo
    There is likely something wrong with your circuit. With PS/SYNC grounded, the unloaded output will be higher only by a few percent. As you mention, with no load the ripple should be higher in this case. Since the version of your board worked with power save disabled, you could have damaged the IC...
    on Jun 9, 2011

  • Wiki Page: TPS63030 FB pin resistor values

    Chris Glaser
    Q: TPS63030 FB pin resistor values by 1038028 Hi Customer sees note in d/s page 14 - " it is recommended to keep the value of this resistor (R2) in the range of 200k" Customer has used lower values for R1 and R2. E.g. he has used 1k for R2 and 4k for R1. Vout=2V5 in this case. He asks...
    on Jun 24, 2011

  • Forum Post: Re: LED DRIVER FOR 1 CHANEL/LED

    Brigitte
    Hello Eli, Please review this application note: http://www.ti.com/litv/pdf/slva419a Best regards, Brigitte
    on Aug 17, 2011

  • Wiki Page: TPS63030 power consumption when enable=low

    Clancy Soehren
    Q: TPS63030 higher power consumption than expected by 1754684 a customer is using TPS63030 in his application... he observed higher power consumption for the TPS than expected when EN = LOW (shutdown)... below the details: << We use the TPS63030DSK to generate +5V. To save power in...
    on Aug 22, 2011

  • Wiki Page: TPS63030 about OVP

    Michael Day
    Q: TPS63030 about OVP by 1589050 1. Does TPS63030 have built in OVP? 2. When feedback loop open, what is the MAX value of output voltage ? If TPS63030 have built in OVP, I think that MAX value of output voltage decide value of OVP built. A: Re: TPS63030 about OVP by 244698 1. Does TPS63030...
    on Aug 30, 2011

  • Forum Post: Re: PWM Dimming an LED with the TPS63020

    Daniel Acevedo
    Terry, What are your specifications? e.g. what is your input voltage range, how much current do you need for the LED, what is the forward voltage drop of the LED, what is your primary design goal (efficiency, cost, simplicity). One note is that the TPS63020, TPS63010, and TPS63030 have built in...
    on Sep 6, 2011

  • Forum Post: Re: PWM Dimming an LED with the TPS63020

    Terry Cooke
    Any feedback??
    on Sep 13, 2011

  • Forum Post: Re: PWM Dimming an LED with the TPS63020

    Michael Day
    Another option is to use two different current sense resistor values. Use a high value to set a very low LED current. Then switch in a lower value through an N-ch MOSFET to set the higher current. With this configuration, the power supply is always regulating the LED current to one of the two discrete...
    on Sep 13, 2011

  • Forum Post: TPS63030 Power save doesn't work

    BOUQUET Hugo
    Hello, I've design a power supply board to supply a RF module with the TPS63030 but I've a problem. When power save is disable I've no problem but when it is enable I can't detect my RF module unless the output voltage is 3,3V. I think that TPS63030 doesn't suplly enough current...
    on Oct 3, 2011
12

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