BQ24266: Do not use a microcontroller BQ25600 BQ25606 BQ24266 BQ25896

Andre Luiz Silva de Oliveira

Part Number: BQ24266
Other Parts Discussed in Thread: BQ25896, BQ25606, BQ25600, BQ24261

Good morning

I need to make a charger that charge 10 or more batteries individually.

And they do not use a microcontroller

I am in doubt between models, BQ25600, BQ25606, BQ24266 and BQ25896, would like to know which they are not required to use a microcontroller.

Best Regards

over 6 years ago

0 Jeff F over 6 years ago

TI__Guru**** 150185 points

Hi Andre,

bq24266 and bq25606 were designed to be stand-alone chargers that do not require a host u-controller. The bq25600 and bq25896 will operate in default mode without a host processor but you cannot change charge current and some other default settings without a host u-controller.

0 Andre Luiz Silva de Oliveira over 6 years ago in reply to Jeff F

Prodigy 190 points

Thanks Jeff F.

I will start design WITH bq24266,

if I supply with 1A in entrance bq24266, I'm going to have 3A on the output?

Where I could find this information on the datasheet?

www.ti.com/.../slusby5e.pdf

BEST REGARDS

0 Jeff F over 6 years ago in reply to Andre Luiz Silva de Oliveira

TI__Guru**** 150185 points

Hi Andre,

Normally, you can estimate the necessary input current from the desired using the datasheet efficiency curves but this datasheet only shows data for VIN=5V. I suggest you look at the host controlled version, bq24261, datasheet page 11 figure 2. Then use efficiency = VBAT*IBAT/(VIN*IIN) to compute IIN. For example, for IBAT=3A and VIN=5V, you will need slightly more than IIN=3A. )

Power management

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BQ24266: Do not use a microcontroller BQ25600 BQ25606 BQ24266 BQ25896