12V,>1.5A Liion/polymer battery with power path management

saravanan krishnan1

Prodigy 150 points

Other Parts Discussed in Thread: BQ25600, BQ24171, BQ24610, BQ25713

Hi,

We need 12V Li-ion/poly switching battery charger with power path management IC .Pls suggest any part no.

Regards,

K.Saravanan

over 4 years ago

0 Jeff F over 4 years ago

TI__Guru*** 143830 points

Hi Saravanan,

I assume 12V is the input source? What is the battery capacity and/or charging current?

Regards,

Jeff

0 Jeff F over 4 years ago in reply to Jeff F

TI__Guru*** 143830 points

Also, do you have host I2C control or do you need resistor only configurable charger? Our newest family is the BQ25600 family. The B25606 is the non-I2C version.

Regards,

Jeff

0 saravanan krishnan1 over 4 years ago in reply to Jeff F

Prodigy 150 points

Dear jeff.

Battery pack voltage -12V,Capacity -20000mAh,Charging current - >1.5A

0 Jeff F over 4 years ago in reply to saravanan krishnan1

TI__Guru*** 143830 points

Saravanan,

If you have a > 12V input source, I recommend the standalone BQ24610 controller with external FETs or BQ24171/2 with internal FETs. Both are standalone.

If your source could drop below 12V, then I recommend BQ25713 which requires host control through I2C.

Regards,

Jeff

0 saravanan krishnan1 over 4 years ago in reply to Jeff F

Prodigy 150 points

Dear Jeff,

Thanks. We have exactly 12V input source so BQ24610 is OK?

0 Jeff F over 4 years ago in reply to saravanan krishnan1

TI__Guru*** 143830 points

Hi Saravanan,

The BQ24610 is a buck only charger and needs some headroom (~0.5V) above the final battery regulation voltage for fast charging. If your input source is not higher than your battery then you must use a boosting or buck and boosting charger like BQ25713.

Regards,

Jeff

Power management

Power management forum

12V,>1.5A Liion/polymer battery with power path management