Forum Post: RE: LM2594MX-5.0/NOPB input rise time
Hi Ivan,I do not know the input slew rate fro this part. I've forwarded this question to the designers to give me some feedback on this.Thanks,Anston
View ArticleForum Post: RE: UCD3138CC64EVM-030 UCD3138source code
Hi, Guys, It's not easy to get a guick response from TI. Especially for UCD3X seriel Chip, I think I also make a mistake to use this one now.Because most of engineers aren't familiar with this power...
View ArticleForum Post: LMZ10500 failures
We have been using the LMZ10500 and have been observing a failure rate of around 3% we believe the damage is occurring during the re-flow process.The soldering looks good and there is no observable...
View ArticleForum Post: RE: TPS65105 is not working
Hello Vijay,Would it be possible that you send a scope shot of the startup? I wonder if the part does not start at all or if it tries to start and the protection kicks in. If the protection kicks in,...
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Forum Post: TL431 in LM5010 soft start circuitry
I've been having trouble using the TL431 as a logic switch for enabling voltage regulation through a lm5010 over a certain input voltage threshold. In this particular circuit, the idea is to prevent...
View ArticleForum Post: RE: Output regulator of LM2576 or analog, with pin 5 ON/OFF or...
Yes, thank you very much, I think too, that may be better use the fedd Pin (PIN 4 FB) or other solution, I attack the my solution, the line and load regulation is: Voltage range in Output may be...
View ArticleForum Post: RE: LM25574 sync duty cycle
Can you provide a sample circuit for the sync drive (or description thereof), with specific values for capacitance, any series resistance, bias resistors, protection diodes, etc.? My sync source would...
View ArticleForum Post: Isolation of power supply from circuit?
Hello, I wish to isolate my power supply from my circuit which detects emg signals, which are very low amplitude(1-2mv) and noise sensitive. How should i achieve this so as to induce minimum...
View ArticleForum Post: BQ3060 Life time data flashing problem
Dear all,I'm flashing the settings in BQ3060 , everything works perfect, also the testing and all safety features. But I have a big problem with lifetime data.After connecting the PCB to the battery in...
View ArticleForum Post: RE: TPS826X output capacitor?
Hi Chris,as the mentioned Datasheet section says, the TPS8267x is designed as a POL regulator. If it needs to power a rail that has e.g. additional distributed capacitors, the device handles this as...
View ArticleForum Post: Tolerance for input surge voltage (LM22676QMRX-ADJ/NOPB)
Hello,Please refer attached file and send any comment for LM22676QMRX-ADJ input surge voltage.(Please visit the site to view this file)Best Regards.
View ArticleForum Post: TPS65217C DCDC efficiency
I want to know about DCDC converter inside PMU [TPS62175c].Please give me General efficiency DCDC converter inside PMU.
View ArticleForum Post: RE: LMR14206 failure
Ok, but tell me, why soft-start circuit solves the problem?
View ArticleForum Post: RE: Flyback Transformer Replacement for PMP6711
Rodolfo,I am the Magnetics design engineer responsible for the design.You can contact me direct at kenser@rencousa.com for samples or any additional information.
View ArticleForum Post: TPS709 Cout ESR Stability curves
Looking for more detail on the ESR STABILITY curves for the TPS709xx family.Usually with PMOS linear regulators the datasheet will provide some detail with curves.Cout ESR for various Vout and...
View ArticleForum Post: RE: TPS709 Cout ESR Stability curves
Hi Ed,During our characterization of the TPS709xx we determined that in order to remain stable, you can have a maximum capacitance of 47uF with ESR between 0 and 0.2 ohms. We do recommend X5R- and...
View ArticleForum Post: RE: TPS63000 Series Buck-Boost Converter minimum input voltage
That's correct. You need to give the device 1.9V to ensure that it starts. Once it starts, you can operate down to the UVLO. There is no way to get around this, though once it's turned on, this spec...
View ArticleForum Post: PTN78000HAH
Hi TI application engineer,We need to know at what temperature the overtemperature shutdown shutsdown the PTN78000HAH. We plan to operate with an input voltage of 24V, an output voltage of 12V, and an...
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