ir3502b International Rectifier Corp., ir3502b Datasheet - Page 35

• Manufacturer Part Number: ir3502b
• Description: Xphase3 Control Ic
• Manufacturer: International Rectifier Corp.

PCB Metal and Component Placement
 Lead land width should be equal to nominal part lead width. The minimum lead to lead spacing should
 Lead land length should be equal to maximum part lead length + 0.3 mm outboard extension + 0.05mm
 Center pad land length and width should be equal to maximum part pad length and width. However, the
 Four 0.30mm diameter vias shall be placed in the center of the pad land and connected to ground to
 No pcb traces should be routed nor vias placed under any of the 4 corners of the IC package. Doing so
be ≥ 0.2mm to prevent shorting.
inboard extension. The outboard extension ensures a large and inspectable toe fillet, and the inboard
extension will accommodate any part misalignment and ensure a fillet.
minimum metal to metal spacing should be ≥ 0.17mm for 2 oz. Copper (≥ 0.1mm for 1 oz. Copper and ≥
0.23mm for 3 oz. Copper)
minimize the noise effect on the IC.
can cause the IC to rise up from the pcb resulting in poor solder joints to the IC leads.
Page 35 of 38
IR3502B
V3.2