LM5119 OK for battery charging (with hiccup disabled)?

John M

Other Parts Discussed in Thread: LM5119, LM5116

Hello,

Can the LM5119 be used as a constant-current battery charger (operate continuously in current limit mode) if hiccup limiting is disabled? A client has a mixed-load application that would occasionally include discharged LiFePO4 battery packs.

If yes, can the LM5119 reliably power up into a load that would immediately force it into current limiting, e.g., a discharged battery? Perhaps by extending the soft-start time?

I did a forum search but only found a reference to the LM5116 being OK for charging applications. I'm hoping that the LM5119 is the same.

Thank you!

over 12 years ago

0 EricLee over 12 years ago

TI__Guru 58371 points

If the board is thermally designed well, I think there is no issue running in current limiting continuously.

Regards,

0 John M over 12 years ago in reply to EricLee

Expert 2135 points

Hello,

Thank you, that's great news! We'll be sure to design the board and spec the components to handle the heat.

Will the LM5119 be able to power up into a load that forces it immediately into current limiting, e.g., a discharged battery pack?

Power management

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LM5119 OK for battery charging (with hiccup disabled)?