BQ24002: Charging a Lithium Polymer Battery

Murugavel49498

Part Number: BQ24002
Other Parts Discussed in Thread: BQ24004, , BQ24040

In one of our product, we are using BQ24004 and Lithium Ion battery single cell (3.7V). Is it possible to use a Lithium polymer battery single cell ( 3.7V)? If it can be used, what changes are to be done in the circuit?

Please suggest.

Murugavel.A.N

over 7 years ago

0 Murugavel49498 over 7 years ago

Prodigy 170 points

The Part number is BQ24002 ( Not BQ24004).

Murugavel.A.N

0 Bill Johns over 7 years ago in reply to Murugavel49498

TI__Guru 70746 points

Lithium Ion and Lithium Polymer Battery charging profiles will be the same but consult manufacture for specific details on the battery you are charging. Key info is the charge voltage typical 4.2V, recommended charge current often expressed as 0.5C or 1C, charge temp range often 0C to 45C and termination current typically 10% of charge current.
The bq24002 is an older device released in 2000, a newer device with improved features such as the bq24040 may work better in your application.

0 Murugavel49498 over 7 years ago in reply to Bill Johns

Prodigy 170 points

Hello Bill Johns,

Thanks for the reply with the details and suggestion.

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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BQ24002: Charging a Lithium Polymer Battery