IR3522 International Rectifier, IR3522 Datasheet - Page 28

• Manufacturer Part Number: IR3522
• Description: DDR & VTT CONTROL IC
• Manufacturer: International Rectifier

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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
• A single 0.30mm diameter via 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.
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V3.01
IR3522