• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 63 subscribers
  • Views 246 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

problem with bq27530 on new layout

or sam
Expert 2020 points
Other Parts Discussed in Thread: BQ24161

HI

we have manufactured a pcb with the bq27530 and bq24161 connected to it directly as in the evl.

we are connecting to the bq27530 via ev2300 just like the evl. we have managed to upload the exported gg file from the evl to the new layout.

the problem that instantly can be noticed is that the gaugestudio shows that the temperature is 280 deg.

my question does the calibration of the evl is also uploaded or that it need to be calibrate again. we think it should be calibrated again but does such high temp can show that there might be a problem (all the resistors on the TS line are correct )?

when we tried to calibrate or change any parameter via the ev2300 using the gaugestudio the log show that there is a problem writing to the flash and the data was not changed (after we hit fully unseal) why is it happening? what else should we do in order to write on the flash?

please help us ASAP we are stuck with a component that doesn't work on our layout. 

thanks in advanced

  • 0
    TI__Genius 10235 points

    Such a high temperature usually indicates that the TS pin has been shorted to GND. Please double-check your schematic, layout, and assembled board to make sure this is not the case.

  • 0 in reply to Chase7071949597
    Expert 2020 points

    Hi

    thanks for your answer.

    I have attache my 0880.SCHEMATIC1 _ charger.pdf drawing and checked my circuit - in the drawing you can see that gnd is not connected to ts in the PCB I tested the gnd and the ts and the resistance between them is not 0.

    I saw that the temp is 173 (other boards) and not 280 as I wrote before.

    what may seem the problem can it be just calibration or that this temp indicate on something much bigger?

    you havent answer my question regarding the flash.

    I added a log after trying to calibrate.

    Fullscreen 3771.battery.log Download 
    04/29/2014 01:32:03 PM: WARNING >>> GaugeStudio.GaugeInterface -> Calibration -> Setting Internal Temperature Selection: There was an error writing the data flash block data.
04/29/2014 01:32:06 PM: ERROR >>> GaugeStudio.GaugeInterface -> Calibration -> Executing Calibration Action (InternalTemperature): There was an error writing the data flash block data.

    it writes that there is an error and it cant write to flash - although I succeed updating firmware and the configuration file only using dmi file gg didnt worked.

    attache you can also find my configuration file.

    4377.battery_conftest1.123

    I think that everything start from not being able to write to the flash please advise.

    thanks in advanced