Rev 13.0

31

PD-97507

IR3843WMPbF

PCB Metal and Components Placement

Lead lands (the 11 IC pins) width should be equal to nominal part lead width. The

minimum lead to lead spacing should be ≥ 0.2mm to minimize shorting.

Lead land length should be equal to maximum part lead length + 0.3 mm outboard

extension. The outboard extension ensures a large and inspectable toe fillet.

Pad lands (the 4 big pads other than the 11 IC pins) length and width should be equal to

maximum part pad length and width. However, the minimum metal to metal spacing

should be no less than 0.17mm for 2 oz. Copper; no less than 0.1mm for 1 oz. Copper

and no less than 0.23mm for 3 oz. Copper.