IR3640MPBF datasheet(29/32 Pages) IRF

No de pièce	IR3640MPBF

Description	HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER

PDF	32 Pages

Scroll/Zoom	100%

Fabricant	IRF [International Rectifier]

Site Internet	http://www.irf.com

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29 / 32 page

06/15/2009

IR3640MPBF

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.

IR3640MPBF Fiches technique(PDF) 29 Page - International Rectifier