BQ40Z50-R1 for LiFePO4

zehua hu

Other Parts Discussed in Thread: BQ40Z50-R1

Hi，

Now， I use bq40z50-r1 for LifePO4.I can not turn on CHG&DSG FET.There are so many parameters and I don not know what the mather is.

For LiFePO4, could you please give me a referent parameters or DATA MEMORY?

Thanks！

over 9 years ago

0 ThomasCosby over 9 years ago

TI__Guru 73830 points

The FUSE flag is set, so this is probably what is causing the FETs to be disabled. Is this a custom design that dies not use the fuse feature? If so, the FUSE pin should be connected to VSS.

0 zehua hu over 9 years ago in reply to ThomasCosby

Intellectual 935 points

Yes,custom did not use fuse feature ,so he left FUSE pin float. FUSE pin is output function,is it wrong to leave float?

Besides,PBI ,BTP,NC are also be floated, is it any problems?

Thanks very much!

0 ThomasCosby over 9 years ago in reply to zehua hu

TI__Guru 73830 points

You should place a capacitor on the PBI pin. WE recommend connecting the NC pins to Vss for ESD/EMI robustness and you can leave the BTP output open. Th FUSE pin must be connected to VSS, if it is unused.

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BQ40Z50-R1 for LiFePO4