BQ24073 - BATT to OUT maximum peak current?

Matthew Cook

Other Parts Discussed in Thread: BQ24073

In the BQ24073 datasheet the maximum output current Io (continuous) is specified at 5A in BATT discharge mode.

When you work backwards with an RDSon of 100mR it doesn't take long to work out why. However is there a maximum for a peak transient current ?

I have a LED driver that will draw up to 6.5A peak for approximately 200ns which then falls to 3A peak within a millisecond (5 cycles). Will this high peak current damage the wirebonds within the BQ24073 ?

Thanks for looking...

over 9 years ago

0 Jing Zou over 9 years ago

TI__Mastermind 20570 points

We do not warrant the long term reliability if the part is operated outside of the spec.

0 Matthew Cook over 9 years ago in reply to Jing Zou

Prodigy 30 points

Ok so what you are saying then is the peak current and the continuous current is therefore the same and limited to 5A ?

0 Jing Zou over 9 years ago in reply to Matthew Cook

TI__Mastermind 20570 points

The peak current might go higher than the continuous current spec. However, since we have not characterize this before, we cannot warrant the operation and the long term reliability.

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BQ24073 - BATT to OUT maximum peak current?