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CS8129 bảng dữ liệu(PDF) 7 Page - Cherry Semiconductor Corporation

tên linh kiện CS8129
Giải thích chi tiết về linh kiện  5V, 750mA Low Dropout Linear Regulator with Lower RESET Threshold
PDF  8 Pages
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nhà sản xuất  CHERRY [Cherry Semiconductor Corporation]
Trang chủ  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS8129 bảng dữ liệu(HTML) 7 Page - Cherry Semiconductor Corporation

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Application Notes: continued
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air.
Each material in the heat flow path between the IC and the
outside environment will have a thermal resistance. Like
series electrical resistances, these resistances are summed
to determine the value of RQJA.
RQJA = RQJC + RQCS + RQSA
(3)
where
RQJC = the junctionÐtoÐcase thermal resistance,
RQCS = the caseÐtoÐheatsink thermal resistance, and
RQSA = the heatsinkÐtoÐambient thermal resistance.
RQJC appears in the package section of the data sheet. Like
RQJA, it too is a function of package type. RQCS and RQSA
are functions of the package type, heatsink and the inter-
face between them. These values appear in heat sink data
sheets of heat sink manufacturers.
Heat Sinks



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