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tps63000
Related Posts

  • Forum Post: TPS63002 easily damage

    Suriyan Laohaprapanon
    Hi All, [Problem] TPS63002 usually damage in mixed 3.3 and 5.0 circuit. Our design include Graphics LCD module supply by TPS63002 (5.0 volt) and 3.3V MCU (5.0 tolerance I/O) supply by TPS63001 (3.3 volt). VINA, EN and PS/SYNC of TPS63002 is connected to a MCU's GPIO for control ON/OFF by software...
    on Sep 30, 2009

  • Forum Post: TPS63000 ESD rating

    Martin Kilian16403
    Could somebody provide ESD rating values (human body model and contact discharge) for the TPS63000? Best regards Martin
    on Nov 2, 2009

  • Forum Post: Re: TPS63000 not regulating

    Michael Day
    The layout is definitely not optimal and does not closely follow the EVM layout. We always recommend that customers use the EVM layout when possible. Modifying the layout will result in better performance. I don't think the incorrect layout is the source of this problem. You need to perform basic...
    on Jan 20, 2010

  • Forum Post: Re: what happen if the input voltage is higher for a boost converter?

    Michael Day
    The output voltage will track the input voltage. As Vin goes higher, Vout goes higher. There will be a voltage drop across the IC that is a function of the load current. If you need a regulated 3.3V, please consider the TPS61200. The TPS61200 provides a regulated output voltage even if Vin is greater...
    on Feb 4, 2010

  • Forum Post: Re: TPS61087: can it be setup as a SEPIC?

    Brigitte
    Hello K, Up to now, noone built a SEPIC with TPS61087. In theory this should work very similar to the circuit in the following application report: http://www.ti.com/litv/pdf/slva337 . I wonder if it is necessary to go to a SEPIC configuration. Having a look on the input to output voltage range...
    on Mar 18, 2010

  • Forum Post: Re: Tps61086EVM doesn't go to 0V.

    Chris Glaser
    If you are going from a Li-Ion battery to 3.3V and 5V, I recommend the TPS63000 series of devices. With these devices you can discharge your battery more (down below 3.3V) and still maintain a regulated 3.3V. The TPS63020, which was just released this week, will allow the output to go 0V when it is...
    on Apr 16, 2010

  • Forum Post: Re: Theta JC of TPS63000DRC and TPS62420DRC

    Michael Day
    For TI employees, this information is available if you search the internal for "thermal" or "theta JC" to find the link to the packaging group. You can fill out a request for this information. For others, contact your local TI sales representative to help you request this information...
    on Apr 26, 2010

  • Forum Post: TPS63000 Getting hot and consuming a lot more power, but still working

    Klaas Jan Wiersma
    In an application for a servo amplifier, we are using the TPS63000 to create 5Vdc out of a 3.5Vdc supply. On our proto board the circuit worked fine, also some of the series production boards work fine. But it seems that on 40% of the series production boards the TPS63000 gets defective. Most of the...
    on Jun 18, 2010

  • Forum Post: Re: TPS63000 Output Oscillation Problem

    Stephen Nortman
    Hi Mark, Equation 7 in the TPS63000 datasheet is meant to say that output capacitance should be at least 5 times the value of the inductor. The "uF/uH" is simply a unit conversion. So, in your example: 5 x 3.3uH x uF/uH = 16.5uF The minimum recommended output capacitance is 16.5...
    on Aug 13, 2010

  • Forum Post: Re: TPS63000 and Multiple Li-Ion Batteries

    Michael Day
    The limiting factor is input voltage to the TPS63000. Any number of Li-Ion in parallel is acceptable because the maximum voltage does not increase. If you put Li-Ion batteries in series, you increase the total voltage above the TPS63000 abs max and this is not acceptable.
    on Aug 19, 2010

  • Forum Post: Re: TPS63000 ESD rating

    Michael Day
    The TPS63000 meets standard 4kV human body model (HBM), 1.5kV charge device model (CDM), and TI does not specify machine model. If additional ESD protection is needed, refer to Texas Instruments' ESD protection devices http://focus.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&familyId...
    on Sep 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: TPS63002 not working

    Chris Glaser
    When using the fixed versions of the IC on the EVM, you must replace R1 with a 0 Ohm resistor. You can remove R2 if you want. This connects the FB pin directly to Vout. Can you try testing with a lab power supply instead of the battery? Have you measured Vin on the board? If neither of the above...
    on Dec 17, 2010

  • Forum Post: Re: TPS63002 not working

    Michael Day
    Because the TPS63000 family is so integrated and easy to use, there are very few thingst that could be wrong with the design. You need to confirm that each pin on the IC has the expected voltage. You also need to confirm that the GND and PGND pins are electrically connected on the PWB. Another thing...
    on Dec 17, 2010

  • Forum Post: Re: Lower 3.6V to 3.4V

    Chris Glaser
    I assume that your battery voltage can vary up and down above 3.6V. Usually, lithium batteries' voltage range in voltage from 3V to 4.2V over the discharge of the cell. You need to confirm with your battery manufacturer if this is the case. If not (if the battery is fixed at 3.6V), then an LDO is...
    on Feb 16, 2011

  • Forum Post: Re: TPS63002 easily damage

    Chris Glaser
    Your block diagram looks fine. Most likely, this is a layout related issue where the part is over stressed and absolute maximum ratings are exceeded. This is why the parts break after repetitive use--the electrical overstress wears down the IC until it breaks. Could you post your schematic and layout...
    on Feb 17, 2011

  • Forum Post: Re: TPS63002 overcurrent input and undervoltage output

    Chris Glaser
    Could you post your schematic and board layout? Also, I recommend testing the EVM under your conditions and see if it works well. With 2 AA cells, their impedance may be too much for the switching action of the TPS63000. I would try adding more input capacitance (try 100uF of ceramic) and retesting...
    on Feb 17, 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

  • Wiki Page: TPS63000 ESD rating

    Jack Bourke
    Q: TPS63000 ESD rating by 1045076 Could somebody provide ESD rating values (human body model and contact discharge) for the TPS63000? Best regards Martin A: Re: TPS63000 ESD rating by 10449 The TPS63000 meets standard 4kV human body model (HBM), 1.5kV charge device model (CDM), and...
    on Mar 22, 2011

  • Forum Post: Re: TPS63000 EVB GEtting Way too hot

    Chris Glaser
    How hot is too hot? What temperature do you measure? Can you measure the input current and voltage to the EVM from the battery or lab supply? Do you have a load connected at the output?
    on Apr 12, 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

  • Wiki Page: TPS63000 EN, SYNC > Vin?

    Chris Glaser
    Q: TPS63000 query on driving the sync pin and enable from 3.3V by 497362 The input to the TPS63000 could be as low as 2.5V, but we would like to control it using 3.3V signals. I'm wary of this, in case there are clamping diodes that will be turned on by these 3.3V inputs when the Li-ion...
    on Jun 22, 2011

  • Forum Post: TPS63000 - Use a super capacitor as power supply

    MengXi Li
    hi there Is that possible to use a super capacitor as power supply for TPS63000/63001 and get a stable out put? I try to power a MCU(3V, 30mA ) by using 2 super capacitor 3.3F 2.7V (connected in series) ,whose capacity should be 1,65Fand out put voltage is 5.4V the discharge time of a capacitor...
    on Jun 29, 2011

  • Forum Post: TPS63000 package size too small

    MengXi Li
    I got the sample chips but they are too small (3mm*3mm) to solder...... Is there chips with bigger size? thanks
    on Jul 8, 2011
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