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STPS4045CW Datasheet(PDF) 2 Page - STMicroelectronics

Part # STPS4045CW
Description  POWER SCHOTTKY RECTIFIERS
PDF  5 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPS4045CW Datasheet(HTML) 2 Page - STMicroelectronics

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Symbol
Parameter
Value
Unit
Rth (j-c)
Junction to case
Per diode
total
1.5
0.8
°C/W
Rth (c)
Coupling
0.1
THERMAL RESISTANCES
When the diodes 1 and 2 are used simultaneously :
∆ TJ(diode 1) = P(diode1)x Rth(j-c) (Per diode) + P(diode 2) x Rth(c)
Symbol
Parameter
Tests Conditions
Min.
Typ.
Max.
Unit
IR *
Reverse leakage
current
Tj = 25
°CVR =VRRM
200
µA
Tj = 125
°C
11
40
mA
VF *
Forward voltage drop
Tj = 125
°CIF =20 A
0.56
0.63
V
Tj = 25
°CIF =40 A
0.94
Tj = 125
°CIF =40 A
0.7
0.83
STATIC ELECTRICAL CHARACTERISTICS (per diode)
Pulse test : * tp = 380
µs, δ <2%
To evaluate the conduction losses use the following equation :
P = 0.46 x IF(AV) + 0.0085 IF
2
(RMS)
0
2468
10 12 14 16 18 20 22 24 26
0
2
4
6
8
10
12
14
16
18
IF(av) (A)
PF(av)(W)
T
δ=tp/T
tp
δ =1
δ = 0.5
δ = 0.2
δ = 0.1
δ = 0.05
Fig. 1: Average forward power dissipation
versus average forward current (per diode).
0
25
50
75
100
125
150
175
0
2
4
6
8
10
12
14
16
18
20
22
Tamb(
°C)
IF(av)(A)
Rth(j-a)=15
°C/W
Rth(j-a)=Rth(j-c)
T
δ=tp/T
tp
Fig. 2: Average current
versus
ambient
temperature (per diode).
STPS4045CP/CW
2/5



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