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Please help identify: 3J40

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Hampton

New Member
I have a 2 cell lithium battery that's giving me some trouble and I'm trying to identify one of the parts on the protection circuitry. The part has the marking "3J40" on it. I believe the package is a SOT-23-6. I've identified the only other IC on the board as a MOSFET, which means the part I'm trying to identify is the controller part of the circuit. Does anybody know what part this is?
 

mneary

New Member
Are the two cells in parallel, presented as a single input to the IC? I look in data sheets and see no 6 pin solutions for series cells.
 
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