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UC2854B Fiches technique(PDF) 3 Page - Texas Instruments

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No de pièce UC2854B
Description  ADVANCED HIGH-POWER FACTOR PREREGULATOR
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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UC2854B Fiches technique(HTML) 3 Page - Texas Instruments

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RECOMMENDED OPERATING CONDITIONS
THERMAL RESISTANCE
UC1854A
UC2854A, UC2854B
UC3854A, UC3854B
SLUS329E – MONTH 2003 – REVISED JANUARY 2008
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VCC
Supply voltage
10
20
V
UC1854X
–55
125
TJ
Operating junction temperature
UC2854X
–40
85
°C
UC3854X
0
70
PACKAGED DEVICES
RESISTANCES
CDIP-16
PDIP-16
SOP-16
PLCC-20
(J)
(N)
(DW)
(Q)
θ
JC (°C/W)
28(1)
45
27
34
θ
JA (°C/W)
80–120
90(2)
50–130(2)
43–75(2)
(1)
θ
JC data values stated are derived from MIL-STD-1835B which states gthe baseline values shown are worst case (mean +2s) for a 60 ×
60 mil microcircuit device silicon die and applicable for devices with die sizes up to 14,400 square mils. For device die sizes greater than
14,400 square mils use the following values, dual-in-line, 11
°C/W; flat pack and pin grid array, 10°C/W.are at the end of each trace.
(2)
θ
JA (junction-to-ambient) applies to devices mounted to five square inch FR4 PC board with one ounce copper where noted. When
resitance range is given, lower values are for five square inch aluminum PC board. Test PWB is 0.062 inches thick and typically uses
0,635 mm trace widths for power packages and 1,3 mm trace widths for non-power packages with a 100
× 100 mil probe land are at the
end of each trace.
Copyright © 2003–2008, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Link(s): UC1854A UC2854A, UC2854B UC3854A, UC3854B


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