Forum Post: RE: LM2576/2596-ADJ noise problem
Hi Frank,Thank You for advices. I've played with couple of different capacitance on the input and output and the conclusion is that, it looks better when the output capacitance is about 100 -...
View ArticleForum Post: RE: Buck PSU - 10~32VIN with FSW = 600KHz (TPS54240 / TPS63020...
Thanks John.Do you know where can I download the software? A link?
View ArticleForum Post: Can't detect pulse on INT pin of BQ24160
Hi All,I'm using bq24160 IC for my AM335x project.but I can't detect any pulse on INT pin of BQ24160 when charge status is changed. for example: usb cable plug in or Removal.The status register can...
View ArticleClik here to view.
Forum Post: BQ771800 / BQ771801 / BQ771802 / BQ771803
Hello~I have one question from "FUNCTIONAL BLOCK DIAGRAM" of BQ77180x datasheet.What is this in the red rectangle as below??Thanks... C.W. :)
View ArticleForum Post: RE: BQ3060 + EV2300 data flash writing problem
I also got this problem.You need export all data to gg-file, change data, import file and write all.
View ArticleForum Post: RE: LM2576/2596-ADJ noise problem
Hi,I've choose components according to Webench for couple of different currents and it is still the same. When I set the R feedback value to have noise eliminated and when I change the load the noise...
View ArticleClik here to view.
Forum Post: LM3429 DC-DC Boost Problem after Replace IC LM3429(Simple buy)...
i am new... any i have a little English language.i am want to know How to solve problem..i have a new PCB Evaluation Board LM3429 Boost DC-DC ConverterMy ploblem i am remove Ic in Evaluation Board and...
View ArticleForum Post: RE: peak input current with UCC28070
Try to capture a image of the gate drives when this happens.I'm running a 2PH 1700W PFC with the UCC28070 from 85-264VAC at 100kHz in two PQ5050 cores.Are you sure you're not saturate your cores? Which...
View ArticleForum Post: RE: PFC converter with the UCC28019
Use the UCC28070 and then concider if you want to run it as a 4PH PFC. There is examples in the datasheet and eval-board papers.2PH/4PH SMPS as PFC has large advantages over single phases such as...
View ArticleForum Post: RE: BQ28550 - Current Measurement timeframe
Onyx,Thanks for your quick answer!It's clear to me now!Best regards,Javier
View ArticleClik here to view.
Forum Post: Couldn't find the Best matching chemistry with BQ27510EVM
Hi,I am trying to learn the chemistry of 2.4Ah Ultralife battery (P/N:UBBL19-C1).Since this battery doen't come under the list provided by the Ti ,I did the chemistry learning cycle. After 1 day of...
View ArticleForum Post: RE: UCC2806 Pspice model
Parveen,I have forwarded your request to the mosel group.John
View ArticleForum Post: RE: TPS65910 SuperCap series resistor
Hello, 1) The resistor specified is the internal impedance. The stability has been checked for those resistors.2) Backup time T can be calculated as following : I backup (~9uA)=C *...
View ArticleForum Post: RE: Using the TPS51200 with a Vin other than 2.5V or 3.3V
Hi Jamaal,The Min. Vin with 2.375V is kind of marginal. Since the Vin UVLO threshold volatge at 25C is 2.2Vmin, 2.3Vtyp and 2.375Vmax. Please refer to datasheet page 4.Thanks,Nancy
View ArticleForum Post: TPS63060 -Is there the hysteresis at PWM and PFM mode change...
PWM and PFM mode change at about 100mA.(datasheet P16 [Power-save mode and synchronization])Is there not the hysteresis? ・PWM→PFM mode Save Mode is entered when the average inductor current gets lower...
View ArticleForum Post: RE: TPS51631 EVM
Hi Ran,We don't have the web-orderable EVM for TPS51631. You may refer to TPS59640 and TPS59640 web-orderable EVM. The datasheet and EVM user's guide of TPS59640 are available in the website. They are...
View ArticleForum Post: RE: UCC2893 Active Clamp Forward Efficiency Problem ( 80%)
Hi,I would expect your switching waveforms to be much sharper. Look for capacitive loading on the transformer secondary (TZ8 and TZ9 ???), secondary leakage inductance??The waveforms do not look...
View ArticleForum Post: TPS2543 Temp concern
Hi team,The TPS2543 is rated for 3A if you use RILIM_HI = 16.9kOhm but is rated at a max continuous current of 2.5A. What would happen if I ran the part at 3A continuously? My worry is that the part...
View ArticleForum Post: RE: Ultra-wide input, isolated, 200W DC-DC Converter - topology?
Ok that's a good starting point.Terry
View Article