Li-ion charger IC which can switch trickle charge and normal charge automatically

Ryo Akashi

Expert 8960 points

Other Parts Discussed in Thread: BQ24232

Hello experts,

My customer is looking for charger IC which can switch trickle charge (10mA) and normal charge(470mA) automaticaly.

They don't want to use software for switching chrge mode trickle/normal.

I can't find this kind of IC. Do you have any recommendation.

Thanks and best regards,

Ryo Akashi

over 4 years ago

0 Raheem over 4 years ago

TI__Mastermind 21590 points

Hello,

For a standalone charger that charges at 470mA, i'll suggest the BQ24232 which is a standalone power path charger the can switch from pre-charge to fast charge automatically.

0 Ryo Akashi over 4 years ago in reply to Raheem

TI__Expert 8960 points

Hello Raheem-san,

Thank you for your reply.

I have one question for BQ24232.

How do we set precharge current (trickle current) 10mA?

Thnaks and best regardsm

Ryo Akashi

0 Raheem over 4 years ago in reply to Ryo Akashi

TI__Mastermind 21590 points

Hello,

With fast charge of 450mA and precharge of 10mA, set RISET to 1.933k ohms and RITERM to 644 ohms

0 Ryo Akashi over 4 years ago in reply to Raheem

TI__Expert 8960 points

Hello Raheem-san,

Thank you for your reply.

I understand.

Thanks and best regards,

Ryo Akashi

Power management

Power management forum

Li-ion charger IC which can switch trickle charge and normal charge automatically