BQ24400 Use MOSFETS instead of bipolar transistors

Christian Popp

Other Parts Discussed in Thread: BQ24400

Hello!

Is it possible to use MOSFET Transistors in the example curcuit in the datasheet of bq24400 (Q1, Q2, Q3)? Would it have any Advantages, e.g. less part Count?

Thanks

Christian

over 12 years ago

0 Charles Mauney over 12 years ago

TI__Mastermind 31120 points

Yes, but most of the improvement would be from replacing the switching FET and hardly no advantage from the other.

The link is to a similar core IC with a FET drive for the switching FET.

http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=sluu270&fileType=pdf

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BQ24400 Use MOSFETS instead of bipolar transistors