參數(shù)資料
型號: STPS1045B
廠商: 意法半導(dǎo)體
英文描述: POWER SCHOTTKY RECTIFIER
中文描述: 功率肖特基整流器
文件頁數(shù): 2/5頁
文件大小: 70K
代理商: STPS1045B
STPS1045B/H
2/5
Symbol
R
th (j-c)
Parameter
Value
3
Unit
°C/W
Junction to case
THERMAL RESISTANCES
Symbol
I
R
*
Parameter
Tests Conditions
Tj = 25°C
Tj = 125°C
Tj = 25°C
Tj = 125°C
Tj = 25°C
Tj = 125°C
Min.
Typ.
Max.
100
15
0.63
0.57
0.84
0.72
Unit
μ
A
mA
V
Reverse leakage current
V
R
= 45 V
7
V
F
**
Forward voltage drop
I
F
= 10 A
I
F
= 10 A
I
F
= 20 A
I
F
= 20 A
0.5
0.65
STATIC ELECTRICAL CHARACTERISTICS
Pulse test :
* tp = 380
μ
s,
δ
< 2 %
**tp = 5 ms,
δ
< 2%
To evaluate the maximum conduction losses use the following equation :
P = 0.42 x I
F(AV)
+ 0.015 I
F2(RMS)
Fig. 1:
Average forward power dissipation versus
average forward current.
0
1
2
3
4
5
6
7
8
9
10
11
12
0
1
2
3
4
5
6
7
8
IF(av) (A)
PF(av)(W)
δ
= 0.05
δ
= 0.1
δ
= 0.2
δ
= 0.5
δ
= 1
T
δ
=tp/T
tp
1E-3
1E-2
1E-1
1E+0
0
20
40
60
80
100
120
t(s)
IM(A)
Tc=50°C
Tc=100°C
Tc=150°C
I
M
t
δ
=0.5
Fig. 3:
Non repetitive surge peak forward current
versus overload duration (maximum values).
0
25
50
75
100
125
150
175
0
2
4
6
8
10
12
Tamb(°C)
IF(av)(A)
Rth(j-a)=15°C/W
Rth(j-a)=Rth(j-c)
Rth(j-a)=70°C/W
T
δ
=tp/T
tp
Fig. 2:
Average forward current versus ambient
temperature (
δ
=0.5).
1E-4
1E-3
1E-2
1E-1
1E+0
0.0
0.2
0.4
0.6
0.8
1.0
tp(s)
Zth(j-c)/Rth(j-c)
T
δ
=tp/T
tp
Single pulse
δ
= 0.1
δ
= 0.2
δ
= 0.5
Fig. 4:
Relative variation of thermal impedance
junction to case versus pulse duration.
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