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IR3535 Datasheet(PDF) 13 Page - International Rectifier |
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IR3535 Datasheet(HTML) 13 Page - International Rectifier |
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13 / 17 page ![]() March 13, 2013 | FINAL DATASHEET 13 IR3535 Synchronous Buck Converter Driver METAL AND COMPONENT PLACEMENT • Lead land width should be equal to nominal part lead width. The minimum lead to lead spacing should be ≥ 0.2mm to minimize prevent shorting. • Lead land length should be equal to maximum part lead length + 0.3 mm outboard extension + 0.05mm 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. • Center pad land length and width should be equal to maximum part pad length and width. However, the 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) • Four 0.30mm diameter vias shall be placed in the center of the pad land and connected to ground to minimize the noise effect on the IC. • No PCB traces should routed nor Vias placed under any of the 4 corners of the IC package. Doing so can cause the IC to raise up from the pcb resulting in poor solder joints to the IC leads. Figure 11: Metal and component placement * Contact International Rectifier to receive an electronic PCB Library file in your preferred format |
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