April 2011 Doc ID 018737 Rev 1 1/11
11
STPS15SM80C
Power Schottky rectifier
Features
■High junction temperature capability
■Optimized trade-off between leakage current
and forward voltage drop
■Low leakage current
■Avalanche capability specified
■Insulated package TO-220FPAB
– insulated voltage: 2000 V
– package capacitance: 45 pF
Description
This dual diode Schottky rectifier is suited for high
frequency switch mode power supply.
Packaged in TO-220AB, I2PAK, D2PAK and TO-
220FPAB, this device is particularly suited for use
in notebook, game station, LCD TV and desktop
adapters, providing these applications with a
good efficiency at both low and high load.
Figure 1. Electrical characteristics(a)
Table 1. Device summary
Symbol Value
IF(AV) 2 x 7.5 A
VRRM 80 V
Tj (max) 175 °C
VF (typ) 485 mV
a. VARM and IARM must respect the reverse safe
operating area defined in Figure 13. VAR and IAR are
pulse measurements (tp < 1 µs). VR, IR, VRRM and VF,
are static characteristics
A1
K
A2
A1
A2
K
A1
A2
K
K
A1
A2
K
K
TO-220AB
STPS15SM80CT
TO-220FPAB
STPS15SM80CFP
I2PAK
STPS15SM80CR
D2PAK
STPS15SM80CG-TR
A1
A2
K
IF
2 x IO
IO
IR
IAR
VF(Io)
VTo VF(2xIo)
VF
V
I
I
V
VR
VRRM
"Reverse"
"Forward"
VAR
X
X
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Characteristics STPS15SM80C
2/11 Doc ID 018737 Rev 1
1 Characteristics
When the two diodes 1 and 2 are used simultaneously:
ΔTj(diode 1) = P(diode 1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c)
Table 2. Absolute ratings (limiting values, per diode, at Tamb = 25 °C unless
otherwise specified)
Symbol Parameter Value Unit
VRRM Repetitive peak reverse voltage 80 V
IF(RMS) Forward rms current 30 A
IF(AV)
Average forward current,
δ= 0.5
TO-220AB,
I2PAK, D2PA K
Tc = 155 °C
Tc = 150 °C
Per diode
Per device
7.5
15 A
TO-220FPAB Tc = 140 °C
Tc = 115 °C
Per diode
Per device
7.5
15
IFSM
Surge non repetitive
forward current tp = 10 ms sinusoidal Tc = 25 °C 150 A
PARM(1)
1. For temperature or pulse time duration deratings, please refer to figure 3 and 4. More details regarding the
avalanche energy measurements and diode validation in the avalanche are provided in the application
notes AN1768 and AN2025.
Repetitive peak avalanche power Tj = 25 °C, tp = 1 µs 4000 W
VARM(2)
2. See Figure 13
Maximum repetitive peak
avalanche voltage tp < 1 µs, Tj < 150 °C, IAR < 12 A 100 V
VASM(2) Maximum single pulse
peak avalanche voltage tp < 1 µs, Tj < 150 °C, IAR < 12 A 100 V
Tstg Storage temperature range -65 to +175 °C
TjMaximum operating junction temperature(3)
3. condition to avoid thermal runaway for a diode on its own heatsink
175 °C
Table 3. Thermal parameters
Symbol Parameter Value Unit
Rth(j-c) Junction to case
TO-220AB
I2PAK , D2PA K
per diode 3.10
°C/W
total 1.88
TO-220FPAB per diode 5.90
total 4.75
Rth(c) Coupling
TO-220AB
I2PAK , D2PA K 0.65 °C/W
TO-220FPAB 3.60
dPtot
dTj <1
Rth(j-a)
STPS15SM80C Characteristics
Doc ID 018737 Rev 1 3/11
To evaluate the conduction losses use the following equation:
P = 0.540 x IF(AV) + 0.016 x IF2(RMS)
Table 4. Static electrical characteristics (per diode)
Symbol Parameter Test conditions Min. Typ. Max. Unit
IR(1) Reverse leakage current Tj = 25 °C VR = VRRM
- 4 20 µA
Tj = 125 °C - 3.5 15 mA
VF(2) Forward voltage drop
Tj = 25 °C IF = 3 A - 0.550 0.600
V
Tj = 125 °C - 0.485 0.520
Tj = 25 °C IF = 7.5 A - 0.710 0.780
Tj = 125 °C - 0.600 0.660
Tj = 25 °C IF = 15 A - 0.860 0.955
Tj = 125 °C - 0.690 0.780
1. Pulse test: tp = 5 ms, δ < 2 %
2. Pulse test: tp = 380 µs, δ < 2 %
Figure 2. Average forward power dissipation
versus average forward current
(per diode)
Figure 3. Average forward current versus
ambient temperature
(δ = 0.5, per diode)
0
1
2
3
4
5
6
7
0123456789
δ= 0.05 δ= 0.1 δ= 0.2 δ= 0.5
δ= 1
T
δ= t / T
ptpI (A)
F(AV)
P (W)
F(AV)
0
1
2
3
4
5
6
7
8
9
0 25 50 75 100 125 150 175
I (A)
F(AV)
Rth(j-a) = Rth(j-c)
TO-220AB / I PAK / D PAK
22
TO-220FPAB
T (°C)
amb
Figure 4. Normalized avalanche power
derating versus pulse duration
Figure 5. Normalized avalanche power
derating versus junction
temperature
0.001
0.01
0.10.01 1
0.1
10 100 1000
1
P(t
p)
P (1µs)
ARM
ARM
t (µs)
p
0
0.2
0.4
0.6
0.8
1
1.2
25 50 75 100 125 150
P(T)
P (25 °C)
ARM j
ARM
T (°C)
j
Characteristics STPS15SM80C
4/11 Doc ID 018737 Rev 1
Figure 6. Non repetitive surge peak forward
current versus overload duration
(maximum values, per diode)
Figure 7. Non repetitive surge peak forward
current versus overload duration
(maximum values, per diode)
0
10
20
30
40
50
60
70
80
90
100
110
1.E-03 1.E-02 1.E-01 1.E+00
TO-220AB / I PAK / D PAK
22
IM
t
δ= 0.5
T = 25 °C
c
T = 75 °C
c
T = 125 °C
c
I (A)
M
t(s)
0
10
20
30
40
50
60
70
80
1.E-03 1.E-02 1.E-01 1.E+00
TO-220FPAB
T = 25 °C
c
T = 75 °C
c
T = 125 °C
c
IM
t
δ= 0.5
I (A)
M
t(s)
Figure 8. Relative thermal impedance
junction to case versus pulse
duration
Figure 9. Relative thermal impedance
junction to case versus pulse
duration (TO-220FPAB)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-04 1.E-03 1.E-02 1.E-01 1.E+00
Single pulse
TO-220AB / I PAK / D PAK
22
Z/R
th(j-c) th(j-c)
t (s)
p
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01
Single pulse
Z/R
th(j-c) th(j-c)
t (s)
p
TO-220FPAB
Figure 10. Reverse leakage current versus
reverse voltage applied
(typical values, per diode)
Figure 11. Junction capacitance versus
reverse voltage applied
(typical values, per diode)
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
0 1020304050607080
I (µA)
R
V (V)
R
T = 25 °C
j
T = 50 °C
j
T = 75 °C
j
T = 125 °C
j
T = 150 °C
j
T = 100 °C
j
10
100
1000
1 10 100
F = 1 MHz
V = 30 mV
T = 25 °C
osc RMS
j
C(pF)
V (V)
R
STPS15SM80C Characteristics
Doc ID 018737 Rev 1 5/11
Figure 14. Thermal resistance junction to ambient versus copper surface under tab for D2PAK
Figure 12. Forward voltage drop versus
forward current (per diode)
Figure 13. Reverse safe operating area
(tp < 1 µs and Tj < 150 °C)
0.0
2.5
5.0
7.5
10.0
12.5
15.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
(Typical values)
T = 125 °C
j
(Maximum values)
T = 125 °C
j
(Maximum values)
T = 25 °C
j
I (A)
FM
V (V)
FM 8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
100 105 110 115 120 125 130 135 140 145 150
I (A)
arm
I (V ) 150 °C, 1 µs
arm arm
V (V)
arm
0
10
20
30
40
50
60
70
80
0 5 10 15 20 25 30 35 40
DPAK
2
R (°C/W)
th(j-a)
S (cm )
Cu
2
epoxy printed board copper thickness = 35 µm
Package information STPS15SM80C
6/11 Doc ID 018737 Rev 1
2 Package information
●Epoxy meets UL94, V0
●Cooling method: by conduction (C)
●Recommended torque value: 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Table 5. TO-220AB dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
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
F2 1.14 1.70 0.044 0.066
G 4.95 5.15 0.194 0.202
G1 2.40 2.70 0.094 0.106
H2 10 10.40 0.393 0.409
L2 16.4 Typ. 0.645 Typ.
L4 13 14 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.
Dia. 3.75 3.85 0.147 0.151
A
C
D
L7
Dia
L5
L6
L9
L4
F
H2
G
G1
L2
F2
F1
E
M
STPS15SM80C Package information
Doc ID 018737 Rev 1 7/11
Table 6. TO-220FPAB dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.4 4.9 0.173 0.192
B 2.5 2.9 0.098 0.114
D 2.45 2.75 0.096 0.108
E 0.4 0.7 0.016 0.028
F 0.6 1 0.024 0.039
F1 1.15 1.7 0.045 0.067
F2 1.15 1.7 0.045 0.067
G 4.95 5.2 0.195 0.205
G1 2.4 2.7 0.094 0.106
H 10 10.7 0.394 0.421
L2 16 Typ. 0.630 Typ.
L3 28.6 30.6 1.126 1.205
L4 9.8 10.7 0.386 0.421
L6 15.8 16.4 0.622 0.646
L7 9 9.9 0.354 0.390
Dia. 2.9 3.5 0.114 0.138
H
L3
L2
L6
L7
G
G1
F
F1
F2 L4 D
E
A
B
Dia.
Package information STPS15SM80C
8/11 Doc ID 018737 Rev 1
Figure 15. D2PAK footprint (dimensions in mm)
Table 7. D2PAK dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.40 4.60 0.173 0.181
A1 2.49 2.69 0.098 0.106
A2 0.03 0.23 0.001 0.009
B 0.70 0.93 0.027 0.037
B2 1.14 1.70 0.045 0.067
C 0.45 0.60 0.017 0.024
C2 1.23 1.36 0.048 0.054
D 8.95 9.35 0.352 0.368
E 10.00 10.40 0.393 0.409
G 4.88 5.28 0.192 0.208
L 15.00 15.85 0.590 0.624
L2 1.27 1.40 0.050 0.055
L3 1.40 1.75 0.055 0.069
M 2.40 3.20 0.094 0.126
R 0.40 typ. 0.016 typ.
V2 0° 8° 0° 8°
G
L
L3
L2
B
B2
E
* FLAT ZONE NO LESS THAN 2mm
A
C2
D
R
A2
M
V2
C
A1
*
16.90
10.30
8.90 3.70
5.08
1.30
STPS15SM80C Package information
Doc ID 018737 Rev 1 9/11
Table 8. I2PAK dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.40 4.60 0.173 0.181
A1 2.40 2.72 0.094 0.107
b 0.61 0.88 0.024 0.035
b1 1.14 1.70 0.044 0.067
c 0.49 0.70 0.019 0.028
c2 1.23 1.32 0.048 0.052
D 8.95 9.35 0.352 0.368
e 2.40 2.70 0.094 0.106
e1 4.95 5.15 0.195 0.203
E 10 10.40 0.394 0.409
L 13 14 0.512 0.551
L1 3.50 3.93 0.138 0.155
L2 1.27 1.40 0.050 0.055
E
L2
L1
b1
D
A1
c
c2
A
b
e
e1
L
Ordering information STPS15SM80C
10/11 Doc ID 018737 Rev 1
3 Ordering information
4 Revision history
Table 9. Ordering information
Order code Marking Package Weight Base qty Delivery mode
STPS15SM80CT PS15SM80CT TO-220AB 1.9 g 50 Tube
STPS15SM80CFP PS15SM80CFP TO-220FPAB 2.0 g 50 Tube
STPS15SM80CR PS15SM80CR I2PAK 1.49 g 50 Tube
STPS15SM80CG-TR PS15SM80CG D2PAK 1.48 g 1000 Tape and reel
Table 10. Revision history
Date Revision Changes
14-Apr-2011 1 First issue.
STPS15SM80C
Doc ID 018737 Rev 1 11/11
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