Forum Post: RE: how can I read data from bq34z100 I2C_write,I2C_read ?
HiTomIssuing the commandas you said,in partdue tomymistake.IsnowawellI2CCOMMAND ().Verygrateful.Ihaveone question.SOCvaluessometimesthedatavalueto 0%,asis indicated.Thenwhen...
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Forum Post: RE: LM26003-Q1 Thermal resistance
Hello Atsushi,please take a look at the following image, i hope that answer your question:Regards,Giuseppe
View ArticleForum Post: LM5072 Power Eval_Board - Vin change
Hello,I have a customer designing a small board that will be powered over POE.They are looking for a solution that will include an auxiliary wall wart and take POE in to 5V @ 4A output. The supply...
View ArticleForum Post: RE: Bq77908A Series Fet Configuration
If I would like to use only a DSG FET and no Split Power Path, Can i connect RCPCKN to Pack(-) and use the DSG pin with a 10k restitor to communicate with the charger?
View ArticleForum Post: RE: TPS3836 ESD Problem
Darwin,It appears that something inside the circuit latches up and causes excessive current drain (140 ma) when an ESD pulse is generated on its ground, but releases when power is cycled. What I hope...
View ArticleForum Post: RE: tlc5971 dissipation power
Hello Mahmut, TLC5971 dissipation power can be calculated by the following equation.PD = (VCC * ICC) + (VOUT * IOLCMax * N * (BCn/127) * dPWM)Where:· PD = device power dissipation· VCC = device...
View ArticleForum Post: RE: TLC5940 control reserve
Hello Rene, Figure 5, OUTPUT CURRENT vs OUTPUT VOLTAGE graph shows how much output voltage TLC5940 needs.If you want to set the output current to 60mA, then I would recommend you to set output voltage...
View ArticleForum Post: Voltage ripple question
Quick question on voltage ripple. I built the buck regulator circuit using the MC34063. My circuit is the same as the buck regulator circuit in the datasheet that takes 25V in and outputs ~5V with a...
View ArticleForum Post: RE: Sync Pin of TPS40400
Hi Soo,I mean the output voltage could be unstable. Not IC damage.Regards,Na
View ArticleForum Post: RE: Interfacing MSP430 and SM72442
Please and Thank You!The sooner the better.
View ArticleForum Post: RE: BQ20Z75 AFE.State_CTL
David,These two registers do not have different definitions. The bq29330 is used in the bq20z65 and all of the features may not be used. RegardsTom
View ArticleForum Post: RE: TPS54418 / Start-up failure
Hi John-san,This fail is happened approximately one time per ten time on the same board. And also they are using three TPS54418 to regulate +1.8V, +1.2V and +0.9V and then this fail is confirmed at...
View ArticleForum Post: BQ77PL900DL status
Hello,we decided to use the BQ77PL900DL in our LiIon BMS. We went through the first prototype round and everything was OK.We have now contact an ODM in China for the second seires of prototypes and...
View ArticleForum Post: RE: EMC filter design
Well, you know what they say... it's Black Magic.Of course that you are also right in your approach, EMC defeating is multilevel so you put filters at many places. But the ultimate boundary of your...
View ArticleForum Post: RE: High side switch gate driver
Hi,this is explained on page 2 of the application note. You need a voltage which will be higher than Vs + Vgs th. In many high side drivers, this is accomplished using a bootstrap circuit to generate...
View ArticleForum Post: RE: Problem in tps54160
Hi Anthony,Please make me clear about the capacitors. Because in my locality. some range of capacitors are not available. wrongly i used capacitor types. So please specify the capacitor with that...
View ArticleForum Post: RE: how can I read data from bq34z100 I2C_write,I2C_read ?
Shin,I looks like you have the pack gauging, but not perfectly. There are some steps required to insure accurate gauging.1) The device parameters must be setup properly.2) The proper ChemID for the...
View ArticleForum Post: RE: Bq77908A Series Fet Configuration
That should work if it satisfies your system requirement. Since CHG won't be driving a FET, CCAP can be made smaller. Remember that CHG was intended to drive a FET gate, so it should drive a...
View ArticleForum Post: UCC28950 active output drive anomaly at power-on.
Shortly after power is applied and the reference of UCC28950 is established (~4mSec), output drive waveforms on A, B,C,and D are produced that are unexpected, based on the specified operation of the...
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