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Comments on Two way circuit breaking capability for ideal diode controllers

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Two way circuit breaking capability for ideal diode controllers

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I would like to save some costs with ideal diode controllers. Basic requirement is for the diode controller to block overcurrents (short circuits) in both directions.

The MAX16141A IC can do it and the datasheet openly discusses it, i.e with two back to back MOSFETs and a sense resistor

Thie LM5069 IC I think can also do the same, just that its datasheet does not mention a second anti-series MOSFET at all. Its cost is half of the first IC, so I would want to use it. Would it be fine, and if so, could I use two different MOSFET types or do they have to be of the same kind ?


edit - New user here, can't comment on other's answers.

So, among the dozen features or so supported by LM5069 there is also "Circuit breaker function for severe overcurrent events".

Could I add in a second mosfet, placed back-to-back with the mosfet in their example diagrams, controlled by the same GATE pin, and get the circuit breaking feature - this time in both ways ? Would other features fail / be impacted if I did that ?

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1 comment thread

Add explicit info about the links directly in the question. (1 comment)
Add explicit info about the links directly in the question.
Lorenzo Donatiā€­ wrote over 1 year ago

Please, edit your question inserting the part number of those chips directly in the text, and maybe add a short excerpt of the datasheet.

As it stands if the links you provided breaks, your question will be quite useless for other people.