BQ24617: Large current usage

K.Shidara

Expert 3225 points

Part Number: BQ24617

Hi Team

Would you advise that

Is it possible to operate 20A by using two external FETs in the charging IC (BQ24617 etc.)?

Thanks

Best regards,

Shidara

over 5 years ago

0 Kedar Manishankar over 5 years ago

TI__Mastermind 24075 points

Hi Shidara,

It is possible to operate 20A using different HSFET and LSFET, however heat dissipation from the gate driver will be large. Internal HIDRV might not be strong enough to drive a larger FET with higher Qg, and this would result in increased losses and heat. Currently we specify 10A as the maximum current, and 20A solution has not been verified. Note that careful care must be given to layout when designing for such high current.

0 K.Shidara over 5 years ago in reply to Kedar Manishankar

TI__Expert 3225 points

Hi Kedar,

Thank you so much for your advice.

I understood.

Best regards,

Shidara

Power management

Power management forum

BQ24617: Large current usage