IRF7821 datasheet(3/15 Pages) IRF

tên linh kiện	IRF7821

Giải thích chi tiết về linh kiện	IRU3146 EVALUATION BOARD USER GUIDE

PDF	15 Pages

Scroll/Zoom	100%

nhà sản xuất	IRF [International Rectifier]

Trang chủ	http://www.irf.com

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3 / 15 page

IRDC3146EVAL

Rev.1.0

7/28/04

www.irf.com

The PCB is 4-layers FR4 board, the top layer is dedi-

cated for power components, with two parallel control

MOSFETs and two parallel Synchronous MOSFETs.

These MOSFETs are dual layout for both SOIC-8 and

DirectFET footprint. The input capacitors are all located

close to MOSFETs. The two output inductors are lo-

cated closed to MOSFETs and are symmetrical to the

output connector for more accurate current sharing re-

sult.

The two mid-layers are dedicated for Analog and Power

ground, these two grounds are kept separated from each

other and they are connected at a single point as shown

in Figure3.

All the decoupling capacitors, charge pump capacitor

and feedback components are located close to the IC.

The feedback resistors are tied to the output voltage at

the point of regulation.

LAYOUT

Figure 2 - Top layer of evaluation-board for IRU3146.

IRF7821 bảng dữ liệu(PDF) 3 Page - International Rectifier