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IR3640MPBF bảng dữ liệu(PDF) 29 Page - International Rectifier

tên linh kiện IR3640MPBF
Giải thích chi tiết về linh kiện  HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER
PDF  32 Pages
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nhà sản xuất  IRF [International Rectifier]
Trang chủ  http://www.irf.com
Logo IRF - International Rectifier

IR3640MPBF bảng dữ liệu(HTML) 29 Page - International Rectifier

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06/15/2009
IR3640MPBF
29
PCB Metal and Components Placement
• Lead land 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
+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 via shall be placed in the center of the pad land and connected to ground
to minimize the noise effect on the IC.



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