Battery Charger IC

NEEHARIKA VELLALURU

Other Parts Discussed in Thread: BQ25150, BQ25150EVM, EV2400, BQ24083, BQ25100

Hi,

Could you please suggest a standalone battery charger IC to charge Tadiran battery (TLI-1020A). The recommended charging voltage and current for the battery are 4.1 V and 8 mA respectively.

Thanks.

over 4 years ago

0 Jeff F over 4 years ago

TI__Guru*** 143910 points

Hi Neeharika,

The closest standalone fit I can find is BQ25100L, which has CV=4.06V and CCmin=10mA. If you have a host with I2C available, the BQ25150 can be configured to your exact requirements.

Regards,

Jeff

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

Prodigy 160 points

Thanks. Can you please provide a link to purchase BQ25100L? I was unable to find this specific part number on Digikey or on any other supplier websites.

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

TI__Guru*** 143910 points

Neeharika,

I failed to notice that the BQ25100L is in product preview and currently not orderable. It appears the BQ25150 is your only option. The BQ25150EVM has downloadable software that can be used with an EV2400 to control the BQ25150.

Regards,

Jeff

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

Prodigy 160 points

I found BQ24083. It has an output voltage of 4.06 V and current is configurable using resistor.

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

TI__Guru*** 143910 points

Great! Just curious how you found it. I did a search on the website for 4.1V and low current regulation but this did not show up. I need to get our website search improved.

Regards,

Jeff

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

Prodigy 160 points

I searched for 4.06 V and low current online and this chip showed up.

0 Raheem over 4 years ago in reply to NEEHARIKA VELLALURU

TI__Mastermind 21590 points

Hello,

The BQ25100 is still a good choice. If you don't intend to use the TS feature on the charger, you can set the NTC to warm by connecting a 4.8K resistor to TS which sets the VBATREG voltage to 4.06V.

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Battery Charger IC