BQ25756E: Smart charger question

Darren Chang

Expert 4120 points

Part Number: BQ25756E
Other Parts Discussed in Thread: BQ25750

Hi Expert,

My customer application is input：8-32V, charge Voltage：12.6V charge Current：5A.

The customer hopes that a short battery will not cause system shutdown and can continue to power the system.

I did not see any more information about battery short in the datasheet. Can you help me verify it?

In addition, if there is no battery, can the system provide VSYS voltage normally?

Thank you.

Darren

5 months ago

0 Utsav Gupta 5 months ago

TI__Intellectual 2610 points

The system should work normally if there is no battery but the system will not work if the battery is shorted because the system power comes from the BAT.

0 Darren Chang 5 months ago in reply to Utsav Gupta

TI__Expert 4120 points

Hi Utasv,

The customer hopes that a short battery will not cause system shutdown and can continue to power the system.

Do we have the solution for this? How about use BQ25750 with power path?

Thank you.

Darren

0 Utsav Gupta 5 months ago in reply to Darren Chang

TI__Intellectual 2610 points

Hi Darren, I don't think there is a solution for this. The system was designed in a way to shutoff the system in case of the shorted battery to protect the system.

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BQ25756E: Smart charger question