BQ77PL900: Basic schematic review

Marcelo Goluboff

Prodigy 20 points

Part Number: BQ77PL900

Tool/software:

Hi,

I designed a schematic using the BQ77PL900 for use with a 10s LiPO battery.

Could you take a look to make sure it looks okay?

Thanks,

Marcelo

4 months ago

0 Thomas Rainey 4 months ago

TI__Expert 4320 points

Hi Marcelo,

Yes, I definitely take a look! I am not seeing anything attached in your message. If you could attach a pdf of the schematic I can gladly look over it.

Best regards,

Thomas Rainey

0 Marcelo Goluboff 4 months ago in reply to Thomas Rainey

Prodigy 20 points

Hey Thomas,

My apologies. Here is the schematic

.3583.bms.pdf

0 Thomas Rainey 4 months ago in reply to Marcelo Goluboff

TI__Expert 4320 points

Hi Marcelo,

I noticed there are no filtering capacitors on the VC pins. I would definitely add .1µF capacitors in between the VC pins.

For a guide on design I recommend using the bq77PL900EVM-001 (Rev. B) as reference.

Best regards,

Thomas Rainey

Power management

Power management forum

BQ77PL900: Basic schematic review