參數(shù)資料
型號： PKC-136RL
廠商： 意法半導(dǎo)體
英文描述： 20mA, 3V to 80V Low Dropout Micropower Linear Regulator; Package: DFN; No of Pins: 8; Temperature Range: -40°C to +125°C
中文描述： 山頂夾具
文件頁數(shù)： 3/5頁
文件大?。?/td> 41K
代理商： PKC-136RL
PKC-136
3/5
1.E-01
1.E+00
1.E+01
1.E+02
1.E-04
1.E-03
1.E-02
1.E-01
1.E+00
1.E+01
tp(ms)
Tj initial=25°C
Pp(kW)
Fig.1:
Peakpulsepowerversusexponentialpulse
duration.
0
10
20
30
40
50
60
70
80
90
100
110
0
25
50
75
100
125
150
175
Tj(°C)
%
Fig. 2:
Relative variation of peak pulse power
versus initial junction temperature.
Symbol
Parameter
Value
Unit
R
th(j-l)
Junction to leads
L = 10mm
40
°C/W
R
th(j-a)
Junction to ambiant condition see note 1
Note 1:
Device mounted on a epoxy FR4 board of 35μm thickness
Lead Length: 10mm
Pad diameter: 4mm
Track width: 1mm
Track length: 25mm
The Rth
(j-a)
can be reduced by replacing the Cu track by plan:
S(Cu) = 1.5cm
2
/lead
R
th(j-a)
= 65°C/W
S(Cu) = 3.5cm
2
/lead
R
th(j-a)
= 60°C/W
105
°C/W
THERMAL RESISTANCES
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
25
50
75
100
125
150
Tamb(°C)
Tamb=Tleads
Printed circuit board
P(W)
Fig. 3:
Average power dissipation versus ambient
temperature.
1.0
10.0
100.0
1000.0
1.E-02
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Zth(j-a) (°C/W)
Free air
tp(s)
Fig. 4:
Variation of thermal impedance junction to
ambient versus pulse duration (printed circuit
board epoxy FR4)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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