Page 1
®
MAIN PRODUCT CHARACTERISTICS
STPS1545D/F
POWER SCHO TTKY REC TIFIER
I
F(AV)
V
RRM
15 A
45 V
Tj (max) 175 °C
(max) 0.57 V
V
F
FEATURES AND BENE FITS
VERY SMALL CONDUCTION LOSSES
NEGLIGIBLE SWITCHING LOSSE S
EXTREMELY FAST SWITCHING
INSULATED PACKAGE: ISOW ATT220AC
Insulating voltage = 2000V DC
Capacitance = 12pF
DESCRIPTION
Single chip Schottky rectifier suited for Switch
Mode Power Supply and high frequency DC to DC
converters.
Packaged in TO-220AC or ISOWA TT2230AC, this
device is intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications.
ABSOLUTE RATINGS
(limiting values)
TO-220AC
STPS1545D
A
K
A
K
ISOWATT220AC
STPS1545F
Symbol Parameter Value Unit
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
I
RRM
I
RSM
Tstg Storage temperature range - 65 to + 175
Repetitive peak reverse voltage 45 V
RMS forward current 30 A
Average forward current
δ
= 0.5
Surge non re petitive forwar d current
Repetitive peak reverse current
Non repetitive peak reverse current
TO-220AC Tc = 155°C 15 A
ISOWATT220AC Tc = 130°C
tp = 10 ms Sinusoidal
tp = 2 µs square F = 1kHz
tp = 100 µs square
220 A
1A
3A
°
Tj Maximum operating junction temperature * 175 ° C
dV/dt Critical rate of rise of reverse voltage 10000 V /µs
dPtot
* :
May 1999 - Ed: 3C
dTj
<
1
Rth(j−a
thermal runaway condition for a diode on its own heatsink
)
C
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Page 2
STPS1545D/F
THERMAL RE SISTA NC ES
Symbol Parameter Value Unit
R
th (j-c)
Junction to case TO-220AC 1.6
°
ISOWATT220AC 4.0
STATIC ELECTRICAL CHARACTE RISTICS
Symbol Parameter Tests Conditions Min. Typ. Max. Unit
* Reverse leakage current Tj = 25°CV
I
R
= V
R
RRM
200
Tj = 125°C1140mA
* Forward voltage drop Tj = 125°CI
V
F
Tj = 25°CI
Tj = 125°CI
Pulse test : * tp = 380 µs, δ < 2%
= 15 A 0.5 0.57 V
F
= 30 A 0.84
F
= 30 A 0.65 0.72
F
To evaluate the conduction losses use the following equation :
P = 0.42 x I
F(AV)
+ 0.01 I
F2(RMS)
C/W
µ
A
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Page 3
STPS1545D/F
Fig. 1:
Average forward power dissipation versus
average forward current.
PF(av)(W)
12
10
δ = 0.05
8
δ = 0.1
δ = 0.2
δ = 0.5
δ = 1
6
4
T
2
0
IF(av) (A)
0 2 4 6 8 10 12 14 16 18
Fig. 3-1:
Non repetitive surge peak forward cur-
δ
=tp/T
tp
rent versus overload duration (maximum values)
(TO-220AC).
IM(A)
200
180
160
140
120
100
80
60
I
M
40
20
0
1E-3 1E-2 1E-1 1E+0
t
δ
=0.5
t(s)
Tc=75°C
Tc=100°C
Tc=125°C
Fig. 2:
Average current versus ambient tem-
perature (δ : 0.5).
IF(av)(A)
18
16
Rth(j-a)=Rth(j-c)
TO-220AC
14
12
10
8
6
4
2
=tp/T
δ
0
0 25 50 75 100 125 150 175
Fig. 3-2:
Rth(j-a)=15°C/W
T
tp
Tamb(°C)
Non repetitive sur ge peak forward cur-
ISOWATT220AC
rent versus overload duration (maximum values)
(ISOWATT220AC).
IM(A)
120
100
80
60
40
I
M
20
0
1E-3 1E-2 1E-1 1E+0
t
δ
=0.5
t(s)
Tc=75°C
Tc=100°C
Tc=125°C
Fig. 4-1:
Relative variation of thermal transient impedance junction to case versus pulse duration
(TO-220AC).
Zth(j-c)/Rth(j-c)
1.0
0.8
δ = 0.5
0.6
0.4
δ = 0.2
0.2
δ = 0.1
0.0
1E-4 1E-3 1E-2 1E-1 1E+0
Single pulse
tp(s)
δ
=tp/T
T
tp
Fig. 4-2:
Relative variation of thermal transient impedance junction to case versus pulse duration
(ISOWATT220AC).
Zth(j-c)/Rth(j-c)
1.0
0.8
δ = 0.5
0.6
0.4
δ
=tp/T
T
tp
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δ = 0.2
0.2
δ = 0.1
0.0
Single pulse
1E-3 1E-2 1E-1 1E+0 1E+1
tp(s)
Page 4
STPS1545D/F
Fig. 5:
Reverse leakage current versus reverse
voltage applied (typical values).
IR(µA)
5E+4
1E+4
1E+3
1E+2
1E+1
1E+0
0 5 10 15 20 25 30 35 40 45
Fig. 7:
Forward voltage drop versus forward cur-
Tj=150°C
Tj=125°C
Tj=100°C
Tj=75°C
Tj=50°C
Tj=25°C
VR(V)
rent (maximum values).
IFM(A)
100.0
10.0
Typical values
Tj=125°C
Tj=25°C
Fig. 6:
Junction capacitance versus reverse
voltage applied (typical v alues).
C(pF)
2000
1000
500
200
VR(V)
100
12 51020 50
F=1MHz
Tj=25°C
Tj=125°C
1.0
VFM(V)
0.1
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
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Page 5
PACKAGE MECHANICAL DAT A
TO-220AC
H2
L5
Ø I
L6
L2
L9
F1
L4
F
G
STPS1545D/F
DIMENSIONS
REF.
A
C
L7
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0. 051
D 2.40 2.72 0.094 0. 107
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.066
D
G 4.95 5.15 0.194 0.202
H2 10.00 10.40 0.393 0.409
L2 16.40 typ. 0.645 typ.
M
E
L4 13.00 14.00 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.20 6.60 0.244 0.259
L9 3.50 3.93 0.137 0.154
M 2.6 typ. 0.102 typ.
Diam. I 3.75 3.85 0.147 0.151
Millimeters Inches
Min. Max. Min. Max.
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Page 6
STPS1545D/F
PACKAGE MECHANICAL DAT A
ISOWATT220AC
H
A
B
REF.
Millimeters Inches
DIMENSIONS
Min. Typ. Max. Min. Typ. Max.
A 4.40 4.60 0.173 0.181
Diam
L6
L2
L3
L7
B 2.50 2.70 0.098 0.106
D 2.40 2.75 0.094 0.108
E 0.40 0.70 0.016 0.028
F 0.75 1. 00 0.030 0.039
F1 1.15 1.70 0.045 0.067
F1
G 4.95 5.20 0.195 0.205
H 10.00 10.40 0.394 0.409
L2 16.00 0.630
L3 28.60 30.60 1.125 1.205
F
D E
L6 15.90 16.40 0.626 0.646
L7 9.00 9.30 0.354 0.366
G
Diam 3.00 3.20 0.118 0.126
Type Marking Package Weight Base qty Delivery mode
STPS1545D STPS1545D TO-220AC 1.86 g. 50 Tube
STPS1545F STPS1545F ISOWATT220AC 2.9 g. 50 Tube
Cooling method: by conduction ( C)
Recommended torque value: 0.55 N.m.
Maximum torque value: 0.7 N.m.
Epoxy meets UL94,V0
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