BQ76925: BQ76925 V3P3 output capacitance

user44411751

Intellectual 940 points

Part Number: BQ76925

If I don't use V3P3 output capacitance or the capacitance is damage,what is any impact in the circiut?

over 7 years ago

0 David Hien over 7 years ago

TI__Genius 10830 points

Hi ,
Thank you for your interest in our products. A BMS expert has been assigned to your question.

Regards,
David

0 user44411751 over 7 years ago in reply to David Hien

Intellectual 940 points

I have another question, we use BQ76925 design for 6 cell,only connect VC1,VC2,VC3,VC4,VC5,VC6 to cell,but not connect VC0,VSS to cell negative.the output V3P3 is also 3.3V and power consumption .

0 WM5295 over 7 years ago in reply to user44411751

TI__Guru 54715 points

Hi User,
The CV3P3 capacitor stabilizes the V3P3. Without the capacitor expect large transients in the regulated voltage.
The part will not work properly without connection of VC0 and VSS. VSS will likely bias above VC1 and damage may occur. BAT is a supply pin and has a voltage limit with respect to VC6. See the bq76925 data sheet.

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BQ76925: BQ76925 V3P3 output capacitance