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MIC2875 데이터시트(PDF) 16 Page - Microchip Technology

부품명 MIC2875
상세설명  4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Disconnect
PDF  24 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC2875 데이터시트(HTML) 16 Page - Microchip Technology

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MIC2875
DS20005549A-page 16
 2015 Microchip Technology Inc.
FIGURE 7-3:
Determining PCB Area for a
Given PCB Thermal Resistance.
Figure 7-3 shows the total area of a round or square
pad, centered on the device. The solid trace represents
the area of a square, single-sided, horizontal, solder
masked, copper PC board trace heat sink, measured in
square millimeters. No airflow is assumed. The dashed
line shows the PC board’s trace heat sink covered in
black oil-based paint and with 1.3 m/sec (250 feet per
minute) airflow. This approaches a “best case” pad
heat sink. Conservative design dictates using the solid
trace data, which indicates that a maximum pad size of
5000 mm2 is needed. This is a pad 71 mm × 71 mm
(2.8 inches per side).



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