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tps54260
Related Posts

  • Wiki Page: TPS54260 maximum temperature

    Michael Day
    Q: TPS54260 maximum temperature by 1090226 Hello, I received the following question from a customer: "I n my design I'm using step-down converter TPS54260D. In datasheet I'm found information about maximal temperature of junction - 150 degrees C. But also i found parameter "thermal...
    on May 13, 2010

  • Forum Post: TPS54260DGQ drop in replacement for TPS54160DGQ?

    Rob Mitrunen
    My customer asks if the TPS54260DGQ is a drop in replacement for the TPS54160DGQ?
    on Aug 4, 2010

  • Forum Post: Re: TPS54260DGQ drop in replacement for TPS54160DGQ?

    Chris Glaser
    Yes, they are pin for pin. But some specs are different, including current limit, the error amplifier gain, and power stage gain. The last 2 parameters will affect the compensation network response. The 40V version of either part (TPS54140, TPS54240) is a better replacement, if the customer can operate...
    on Aug 5, 2010

  • Forum Post: TPS54260

    Chinh Vu
    For TPS54260EVM, the chip spec stated its ability to accept wide range input, but the EVM board limited the input range between 10.8V to 13.2V!! Are there any doc or app-notes to show how to to change its components to accept wide input range again? We only interested in 9V to 36V range.
    on Sep 22, 2010

  • Forum Post: Re: TPS54260 frequency division

    JohnTucker
    I have not seen this before. You state that the function works as expected on the evaluation board. It may be possible that you have some bad devices. I recommend that you contact your local AFA and submit one or more for failure analysis. In the mean time you can try to gradually increase the load above...
    on Oct 23, 2010

  • Forum Post: Re: TPS40200 - operate at 60V?

    Peter Miller13277
    The TPS40200 controller will not support a 60V surge voltage. The absolute maximum voltage is 52V, anything higher could result in IC damage. The TPS40060/61 is a similar part, though allowing synchronous rectification. The TPS40060/61 could drive a non-synchronous power stage since they don't...
    on Oct 26, 2010

  • Forum Post: TPS54260 Stepdown conversion

    Veera Akula
    Hi, We would like to use TPS54260 to convert 50V (+/- 3V) dc input to 12V dc output at 2.5A. Can we use TPS54260 for this application, if so what would be the approximate efficiency. Regards, Veera.
    on Nov 8, 2010

  • Forum Post: Re: TPS54260 Stepdown conversion

    JohnTucker
    The TPS54260 should work well for that application. The efficiency is greatly dependent on Vout. For 12 V output, the efficiency shoulf be well over 90 % for most of the load range. You van use the Switcherpro design tool to gnerate an efficiency plot for your design.
    on Nov 8, 2010

  • Forum Post: Re: Help Required. - -24V output required.

    JohnTucker
    A switching supply is likely the best solution. If you could find a linear regulator ( i do not think that they exist) the power dissipation would be 24 W. You can get a pre-packaged module, but it will be more expensive than a TPS54360 based solution.
    on Feb 22, 2011

  • Forum Post: Re: Help Required. - -24V output required.

    JohnTucker
    Yes, the GND and thermal pad will be connected to the negative voltage rail. The PWRGD output is the power good signal. That does not need to be connected to groung or the negative rail. For off forum assistance you should contact your local AFA or sales office.
    on Mar 10, 2011

  • Forum Post: Re: Problem with TPS54260 as Inverting Power Supply

    JohnTucker
    I do not see anything particularly wrong with the schematic. At those light loads, the thermal pad should not be an issue either. It could be possible that you have a faultey or high impedance path somehwer in your groundinng that is causing the device to see an over voltage condition. I think there...
    on Mar 15, 2011

  • Forum Post: Re: Problem with TPS54260 as Inverting Power Supply

    JohnTucker
    If you are having catastrophic failure with the internal switching FET shorted, most certainly you are inducing an over voltage condition. SLVA317 is an application note, not an eval board so there is no schematic or pcb associated with it. For the inverting buck boost it is very easy to use the normal...
    on Mar 16, 2011

  • Forum Post: Supercap on TPS54260 Output - Best Efficiency

    Chris R
    I'm trying to build as energy efficient a system as possible--for 12 to ~30V source voltage operation. I'd like to be able to use a supercap to provide a voltage for a time after power is lost... Is it reasonable to use a supercap (say, for example, .25F) directly on the output rail of the...
    on Apr 27, 2011

  • Forum Post: Re: Supercap on TPS54260 Output - Best Efficiency

    JohnTucker
    We have not really done any work at all with supercaps and teh TPS54260. We may have done one or two designs using other controllers, but I do not have immediate access to the details. that being said, I do not see any reason that would prevent it. i assume the ESR whould be relatively large, so you...
    on Apr 27, 2011

  • Forum Post: Parallel TPS54260 outputs

    Hong14351
    Hello, Is it practical to parallel multiple TPS54260 outputs to get higher output current, like 10A? No information in the datasheet or the application notes found. Thank you.
    on May 3, 2011

  • Forum Post: Parallel multiple TPS54260 output

    Hong14351
    Hello, Each TPS54260 chip can output a maximum current of 2.5A. Is it practical to parallel multiple TPS54260 outputs to get higher current output capability, like 10A? Anyone has experience on this to share? Thank you.
    on May 3, 2011

  • Forum Post: Re: Parallel multiple TPS54260 output

    JohnTucker
    In general you can parallel devices that use current mode control. I have done this with the TPS54620 successfully (2 x 6 A = 12 A total). If you look in the product folder you will find documentation on this. I am not sure about putting more than 2 circuits in parallel. The layout is a little tricky...
    on May 3, 2011

  • Forum Post: TPS54260 10cell charger

    Katsuhiro Kanao
    My customer want to use TPS54260 as 10cell charger ( Input 50V, charging current =1.5-2.0A) Is there any recommendation circuit for charger ? There is a reference circuit using bq24610 with external IC and parts for over 7 cells charger. http://focus.ti.com/docs/toolsw/folders/print/bq24610evm-603.html...
    on Aug 10, 2011

  • Forum Post: Re: TPS54260 10cell charger

    JohnTucker
    You can use the TPS54260 in constant current mode. Connect the bottom of the battery string to VSENSE and use a current sense resistor form VSENSE to ground. For 2 A charging current you will dissipate 1.6 W just in that sense path. You can reduce this by adding an external current sense amplifier. Also...
    on Aug 10, 2011

  • Forum Post: Re: TPS54260 10cell charger

    JohnTucker
    I only have a reference circuit for TPS54160 as LED driver (current source). It would not be directly applicable to your application. I'll check the design database tomorrow to see if there is anything else, but I doubt it as we do not usually recommend TPS54260 for battery charging.
    on Aug 11, 2011

  • Forum Post: Re: using TPS40170 to generate a negative 15 v

    Na Kong
    Hi Sara, You can find the app notes from the following links: http://www.ti.com/lit/an/slyt286/slyt286.pdf http://focus.ti.com/analog/docs/litabsmultiplefilelist.tsp?literatureNumber=slva257a&docCategoryId=1&familyId=64 Regards, Na
    on Sep 15, 2011

  • Forum Post: Re: DC-DC converter for BC1.2 compliant car charger for USB devices

    Chris Glaser
    I do not know what BC1.2 is. Typically, these are system level specifications that the total system needs to meet. The TPS54286 cannot accept a 40V input. I recommend the TPS54260 to meet your Vin and Vout requirements.
    on Dec 9, 2011

  • Forum Post: Re: High current version of MC33063 ?

    JohnTucker
    We have some reference designs for TPS54260. You might want to consider that device.
    on Dec 10, 2011

  • Forum Post: Re: High current version of MC33063 ?

    JohnTucker
    No, not pin compatible.
    on Dec 11, 2011

  • Forum Post: TPS54260 blowing

    G��bor Bihari
    Hello Colleagues, Please help me! I'm using TPS54260 in a power supply circuit having an input voltage of 48V (max 58V), and an output of 18V@1,5A. I managed to blow up two TPS54260. I used the adviced circuit from SwitcherPro with a couple of modification. I replaced the diode with an SS36 type...
    on Jan 19, 2012
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