BQ24617: Is it possible to use charge current 14A?

Shinichi Inoue

Guru 21566 points

Part Number: BQ24617

Dear Specialists,

My customer is interested in bq24617, and has a question.

Could you please advise?

---question1---

Is it possible to use charge current 14A?

I think it's possible to use using appropriate FET if the device is able to drive FET.

Is it correct?

If so, could you please advise the value of inductance, output cap and sense resistor.

---question2---

Also, question about the bq246xx calculation Tool V1.5(Rev.D)

http://www.ti.com/product/BQ24610/toolssoftware

What should he do when charge current is 14A ?

I appreciate your great help in advance.

Best regards,

Shinichi

over 8 years ago

0 Kerry Song over 8 years ago

TI__Intellectual 1980 points

Hello,

We cannot confirm that the part could work at 14A. You need to use two parts in parallel for the current.

Regards

0 Shinichi Inoue over 8 years ago in reply to Kerry Song

Guru 21566 points

Hi Kerry,

Thank you for your reply.

(1) Could you please advise reference circuit BQ24617 in parallel for 14A charging?

(2) Do you have any device for 14A charge current besides BQ24617?

I appreciate your great help.

Best regards,
Shinichi

0 Kerry Song over 8 years ago in reply to Shinichi Inoue

TI__Intellectual 1980 points

Hello,

Yes, we have reference circuit about parallel, please see below.

0 Kerry Song over 8 years ago in reply to Kerry Song

TI__Intellectual 1980 points

Hello

Yes, we have reference circuit about parallel, please see below:

0 Shinichi Inoue over 8 years ago in reply to Kerry Song

Guru 21566 points

Hi Kerry

Thank you for your reply and sending reference circuit in parallel.

Could you tell another question is there the device 14A chargeing for one chip.

I appreciate your great help.

Best regards,

Shinichi

0 Shinichi Inoue over 8 years ago in reply to Shinichi Inoue

Guru 21566 points

Hi Kerry

I have some questions about the connection of reference circuit in parallel.

Could you please advise?

Also, if you have some application note, could you please send me?

I appreciate your great help.

Best regards,

Shinichi

additional question of charger in parallel.pptx

0 Kerry Song over 8 years ago in reply to Shinichi Inoue

TI__Intellectual 1980 points

Hello,

Don't have one chip for 14A.

It's Ok for TS, ACSET, ISET, also for ISET2. TTS should separate.

Regards

0 Shinichi Inoue over 8 years ago in reply to Kerry Song

Guru 21566 points

Hi Kerry

Thank you for your reply.

I'll send your suggestion to the customer.

If the customer has an additional question, I'll consult you.

I appreciate your great help.

Best regards,

Shinichi

Power management

Power management forum

BQ24617: Is it possible to use charge current 14A?