Forum Post: RE: BQ29200 - Cell Balancing Circuit
Hi Onyx,So if only the MPPT and the load are connected, do both of them needs a blocking system or is it only the MPPT that will require one?As for the power supply, does the evm draws a huge amount of...
View ArticleForum Post: three phase pfc and sepic topology using uc3854
Hi to all. I am in the task to design a Sepic, with pfc correction, converter for a three phase variable speed / variable frecuency and it seems that the uc3854 pfc ic can be adecuate. However the...
View ArticleForum Post: RE: TPS56121 switching noise
HI JohnThanks for your help. Appreciated.I would try to route thru another channel to get help. Thanks againIvan
View ArticleForum Post: RE: Not Getting PWM pulses from TPS40054
Thank you very much for all the support. :). No other path is connected to SS pin. As you told the device might be damaged. Yae I need analog board i.e in the 16th page of the document. our annual...
View ArticleForum Post: Question about TPS3860x0
I want to use TPS3860x0 to control some Linear Tech DC-DC modules but right now I’m confused!Modules like LTM4619 and LTM4628 has a RUN Pin and I want to have a sequence on these modules. It seems that...
View ArticleForum Post: Fault pin continuously becoming damaged
I have been using iso5500 for my power designs. Issue faced is with the fault \ pin. we are having a power board separate, controller board separate kind of design. The faults are all wired and 'or'ed...
View ArticleForum Post: RE: -15V output not working in TPS65131RGET
The RC time constant (delay) for enable should be less than 10uS. But, the circuit has a 100 ohms R and a 0.1uF, two 4.7uF 'C' values. The achieved delay is 950uS.This delays the gate control of both...
View ArticleForum Post: RE: Start-up problem with TPS54040A
Looking at your schematic, it looks like there is a drawing error that might be causing the Soft Start capacitor to be shorted out. That would tend to prevent startup.
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Forum Post: TPS40210 doesn't follow a cyclic load.(Again)
Unintentionally I closed my question before solving. Then I post again.----------------------------------------------------------------------------------------------Hi, I'm using TPS40210DRCT for 12V...
View ArticleForum Post: Regarding to select Li-Polymer Battery charger IC and energy...
Dear TI,1. Presently we are using TPS62090 regulator for our device. But now we need to change the regulator because we need to utilize the full battery voltage level even if reach till 3V. So we are...
View ArticleForum Post: RE: Inquiry regarding TPS54360 behavior on light load
Hello, thank you for your prompt reply.Actually, we haven't had any modification on TPS54360EVM-182.I also captured the waveform on BOOT pin, however the measured voltage is higher than 2.1V.Please see...
View ArticleForum Post: RE: TPS2421-1 Problem
Thanks for your feedback Martin - very insightful.FYI, I have been able to get the circuit to work by removing two of the MAX1846 output capacitors (C38 & C45). I'm not quite sure what, if any, the...
View ArticleForum Post: RE: BQ3060 firmware
As far as I know, there isn't any newer firmware for the bq3060 past version 0.14.
View ArticleForum Post: Is there an updated version of GaugeStudio for public download...
Hi,I was watching the demo video on the bq27421-G1 page, and in that video, the GaugeStudio software had a bunch more features on it. Features like "Parameter Q/A" and other tabs on the ribbon don't...
View ArticleForum Post: TPS7A7300 EN pin
Hello, is it possible to drive EN pin of TPS7A7300 with slowly changing signal (1V/s) or should we use Schmitt trigger? We need to switch TPS7A7300 on 2 s after input voltage stabilizes.
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Forum Post: RE: TPS73101/Accuracy of TJ = -40 ℃ to125 ℃
Hi,We have obtained questions of TPS73101 from our customers.➀Can you tell me the internal reference voltage accuracy of the TPS73101 in Over temperature range “-40 to 125℃” ？➁The following figure...
View ArticleForum Post: RE: Question about REGIN and REG25 of BQ27410
Hello Jared,Thank you for your response.The output of external LDO is 2.5V as you know. Customer wants to reduce the leakage current at sleep mode of her own device. So the external LDO will be used to...
View ArticleForum Post: RE: LM317A - About INPUT-OUTPUT DIFFERENTIAL
Hello Donald,Thank you for a reply.I lower IOUT.If IOUT is 500mA or 200mA, is it correct that the maximum data is estimated by adding 500mV to the typical data, too?Best regards,Daisuke Otaki
View ArticleForum Post: Writing problem of BQ27410.
Hi.I have a question about writing data flash.I wrote .gg file I made to bq27410 using bqEVSW GUI on failure board.Writing was successful except for twofactors.Only two factors (CC delata and CC...
View ArticleForum Post: RE: DCR010505 Isolation Test
Thank you Tom!I need your help to understand the significance of the 60 second test during UL approval. I understand from your reply that the device would not be able to withstand 1kVrms for 60...
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