BQ77915: 06

Jaya Prasad

Prodigy 60 points

Part Number: BQ77915
Other Parts Discussed in Thread: BQ76952,

Hi,

How to calculate Rcb resistor value for 500mA cell balancing current with External MOSFETs.

Please explain .

Thanks

over 1 year ago

0 Max Verboncoeur over 1 year ago

TI__Mastermind 24510 points

Hi Jaya,

I recommend reading Section 2 of the Cell Balancing application note for the BQ76952: https://www.ti.com/lit/an/sluaa81a/sluaa81a.pdf.

The device is different, but the concepts are the same. The only difference will be the internal FET resistance and the internal current limits. The internal resistance is ~12 ohms, and the abs max internal current is 50mA for the BQ77915.

Regards,

Max Verboncoeur

0 Jaya Prasad over 1 year ago in reply to Max Verboncoeur

Prodigy 60 points

Hi Max,

Thanks for your response. This link https://www.ti.com/lit/an/sluaa81a/sluaa81a.pdf not opening. please share correct link.

Thanks,

Jaya Prasad

0 Max Verboncoeur over 1 year ago in reply to Jaya Prasad

TI__Mastermind 24510 points

Hi Jaya,

Apologies, for some reason the period got added to the end of the link. https://www.ti.com/lit/an/sluaa81a/sluaa81a.pdf

Regards,

Max Verboncoeur

Power management

Power management forum

BQ77915: 06