BQ25895: minimum input current

Colin Chen

Mastermind 21141 points

Part Number: BQ25895

Dear team,

The typical input current regulation range of BQ2595 is 100mA to 3250mA.

In the actual use scenario of the customer, the current is 10 to 20mA, can bq25895 still work?

Customer use solar panel, the current is very small when the light is weak.

Thanks.

Best Regards,

Qixiang Chen

over 4 years ago

0 Ning T over 4 years ago

TI__Guru 57551 points

Qixiang,

It could be tough. Please refer to Maximum Power Point Tracking Algorithm for Solar Battery Charging Ref Design with BQ25895 for the details at https://www.ti.com/lit/pdf/tidudj2

Thanks,

Ning.

0 Colin Chen over 4 years ago in reply to Ning T

TI__Mastermind 21141 points

Hi Ning,

Could the minimum input current limit be set below 100mA with the MPPT of BQ25895?

Thanks,

Colin.

0 Ning T over 4 years ago in reply to Colin Chen

TI__Guru 57551 points

Colin,

The minimum input current limit of 100mA can't be changed.

Thanks,

Ning.

0 Colin Chen over 4 years ago in reply to Ning T

TI__Mastermind 21141 points

Hi Ning,

What is the adverse effect of an input current threshold that is too low?

Thanks,

Colin

0 Ning T over 4 years ago in reply to Colin Chen

TI__Guru 57551 points

Colin,

The input current limit should be high enough to support normal charger operations.

Thanks,

Ning.

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BQ25895: minimum input current