STPS20SM60C
Power Schottky rectifier
Features
■
■
■
■
High current capability
Avalanche rated
Low forward voltage drop
High frequency operation
Description
The STPS20SM60C is a dual diode Schottky rectifier, suited for high frequency switch mode power supply.
Packaged in TO-220AB, TO-220FPAB, I
2
PAK and
D
2
PAK, this device is intended to be used in notebook, game station and desktop adapters, providing in these aplications a good efficiency at both low and high load.
Table 1.
Device summary
Symbol
I
F(AV)
V
RRM
V
F
(typ)
T j
(max)
Value
2 x 10 A
60 V
0.420 V
150 °C
K
K
A2
K
A1
I
2
PAK
STPS20SM60CR
A1
A2
K
K
A2
A1
D
2
PAK
STPS20SM60CG-TR
A2
K
A1
TO-220AB
STPS20SM60CT
A1
K
A2
TO-220FPAB
STPS20SM60CFP
Figure 1.
Electrical characteristics
(a)
V
I
2 x I
O
I
"Forward"
X
V
AR
V
RRM
V
R
"Reverse"
I
F
I
O X
V
I
R
VTo V
F(Io)
V
F
V
F(2xIo)
I
AR
October 2011 a.
V
ARM
and I
ARM
must respect the reverse safe operating area defined in
Figure 14
. V
AR
and I
AR
are pulse measurements (t p
< 1 µs). V
R
, I
R
, V
RRM
and V
F
, are static characteristics
Doc ID 022015 Rev 1 1/11 www.st.com
11
Characteristics
1 Characteristics
STPS20SM60C
Table 2.
Symbol
Absolute ratings (limiting values, per diode, at T amb
= 25 °C unless otherwise specified)
Parameter Value Unit
V
RRM
I
F(RMS)
Repetitive peak reverse voltage
Forward rms current
I
F(AV)
Average forward current,
δ = 0.5
TO-220AB,
I
2
PAK, D
2
PAK
T c
= 135 °C
T c
= 130 °C
TO-220FPAB
T c
= 110 °C
T c
= 90 °C
Per diode
Per device
Per diode
Per device
I
FSM
Surge non repetitive forward current t p
= 10 ms sine-wave
P
ARM
(1)
Repetitive peak avalanche power
V
ARM
(2)
Maximum repetitive peak avalanche voltage t p
< 1 µs, T j
T j
= 25 °C, t p
< 150 °C, I
AR
= 1 µs
< 32.6 A
V
ASM
(2)
Maximum single pulse peak avalanche voltage t p
< 1 µs, T j
< 150 °C, I
AR
< 32.6 A
60
30
10
20
10
20
220
8700
80
80
V
A
A
A
W
V
V
T stg
T j
Storage temperature range
Maximum operating junction temperature
(3)
-65 to +175 °C
150 °C
1.
For temperature or pulse time duration deratings, please refer to
Figure 4 and 5
. More details regarding the avalanche energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025.
2.
See
Figure 14
3.
dPtot 1 dTj
<
Rth(j-a)
condition to avoid thermal runaway for a diode on its own heatsink
Table 3.
Thermal parameters
Symbol Parameter Value Unit
R th(j-c)
R th(c)
Junction to case
Coupling
TO-220AB
I
2
PAK, D
2
PAK per diode total per diode
TO-220FPAB total
TO-220AB, I
2
PAK, D
2
PAK
TO-220FPAB
2.00
1.13
4.90
4.05
0.25
3.20
°C/W
°C/W
When the two diodes 1 and 2 are used simultaneously:
Δ
T j
(diode 1) = P(diode 1) x R th(j-c)
(Per diode) + P(diode 2) x R th(c)
2/11 Doc ID 022015 Rev 1
STPS20SM60C Characteristics
Table 4.
Symbol
Static electrical characteristics (per diode)
Parameter Test conditions Min.
I
R
(1)
V
F
(2)
Reverse leakage current
Forward voltage drop
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
V
R
= V
RRM
I
F
= 5 A
I
F
= 10 A
1.
Pulse test: t p
= 5 ms,
δ
< 2 %
2.
Pulse test: t p
= 380 µs,
δ
< 2 %
To evaluate the conduction losses use the following equation:
P = 0.455 x I
F(AV)
+ 0.0145 x I
F
2
(RMS)
-
-
-
-
-
-
Typ.
10
5
0.505
0.420
0.580
0.525
Max.
40
25
0.545
0.475
0.645
0.600
Unit
µA mA
V
3
2
1
0
0
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)
9
P
F(AV)
(W)
12
I
F(AV)
(A)
8 δ = 0.05
δ = 0.1
δ = 0.2
δ = 0.5
δ = 1
10
Rth(j-a) = Rth(j-c)
7
6 8 2 2
TO-220AB/I PAK/D PAK
5
6 TO-220FPAB
4
4
1 2 3 4 5 6
δ = t / T
7
T
8 t p
9
I
F(AV)
(A)
10 11 12 13
2
0
0 25 50
T amb
(°C)
75 100 125 150
Figure 4.
Normalized avalanche power derating versus pulse duration
1
P
ARM
(tp)
P
ARM
(1µs)
Figure 5.
1.2
P
ARM
(T )
P
ARM
(25 °C)
Normalized avalanche power derating versus junction temperature
0.1
0.01
1
0.8
0.6
0.4
0.001
0.01
0.1
1 10 100 1000
0.2
0
25 50 75 100 125 150
Doc ID 022015 Rev 1 3/11
Characteristics STPS20SM60C
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)
160
140
120
100
80
60
40
20
I
M
0
1.E-03 t
δ = 0.5
2 2
TO-220AB/I PAK/D PAK t(s)
1.E+00
100
90
80
70
60
50
40
30
20
10
0
1.E-03
I
M t
δ
= 0.5
TO-220FPAB
1.E-02 1.E-01 1.E-02 1.E-01 1.E+00
Figure 8.
Relative thermal impedance junction to case versus pulse duration
1.0
Z th(j-c)
/R th(j-c)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Single pulse
0.0
1.E-04 1.E-03 1.E-02 1.E-01 1.E+00
Figure 9.
Relative thermal impedance junction to case versus pulse duration
1.0
Z th(j-c)
/R th(j-c)
0.9
TO-220FPAB
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Single pulse
0.0
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01
Figure 10.
Reverse leakage current versus reverse voltage applied
(typical values, per diode)
1.E+02
1.E+01
Figure 11.
Junction capacitance versus reverse voltage applied
1000
C(pF)
(typical values, per diode)
F = 1 MHz
V osc
= 30 mV
RMS
T = 25 °C j
1.E+00
1.E-01
1.E-02
1.E-03
0 10 20 30 40 50 60
100
1 10 100
4/11 Doc ID 022015 Rev 1
STPS20SM60C Characteristics
Figure 12.
Forward voltage drop versus
100.0
I
FM
(A)
10.0
(Typical values)
1.0
0.1
0.0
0.2
forward current (per diode)
(Maximum values)
0.4
(Maximum values)
0.6
0.8
1.0
1.2
V
FM
(V)
1.4
1.6
40
30
20
10
0
0
Figure 13.
Thermal resistance junction to ambient versus copper surface under tab
80
R th(j-a)
(°C/W)
70
Epoxy printed circuit board FR4 copper thickness = 35 µm
2
D PAK
60
50
5 10 15 20 25 30 35 40
Figure 14.
Reverse safe operating area (t p
< 1 µs and T j
< 150 °C)
I arm
(A)
34.0
I a rm
(V a rm
) 150 ° C, 1µs
32.0
30.0
28.0
26.0
24.0
22.0
20.0
80 85 90 95 100 105 110
V arm
(V)
115 120
Doc ID 022015 Rev 1 5/11
Package information STPS20SM60C
●
●
●
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
L2
F2
F1
F
G1
H2
Dia
G
L5
L9
L6
L4
C
A
D
M
E
L7
Ref.
G
G1
H2
L2
L4
L5
A
C
D
E
F
F1
F2
L6
L7
L9
M
Dia.
Dimensions
Millimeters Inches
Min.
Max.
4.40
1.23
2.40
0.49
0.61
1.14
1.14
4.95
2.40
10
5.15
2.70
10.40
13
16.4 Typ.
14
2.65
2.95
4.60
1.32
2.72
0.70
0.88
1.70
1.70
15.25
6.20
3.50
15.75
6.60
3.93
2.6 Typ.
3.75
3.85
Min.
Max.
0.173
0.048
0.094
0.019
0.024
0.044
0.044
0.194
0.094
0.393
0.202
0.106
0.409
0.645 Typ.
0.511
0.551
0.104
0.116
0.181
0.051
0.107
0.027
0.034
0.066
0.066
0.600
0.244
0.137
0.620
0.259
0.154
0.102 Typ.
0.147
0.151
6/11 Doc ID 022015 Rev 1
STPS20SM60C Package information
Table 6.
L7
F1
F2
H
F
G
G1
TO-220FPAB dimensions
L2
L6
L3
L4
A
B
E
D
Dia.
L4
L6
L7
Dia.
G
G1
H
L2
L3
E
F
F1
F2
A
B
D
Ref.
Dimensions
Millimeters Inches
Min.
Max.
4.4
2.5
2.45
0.4
0.6
1.15
1.15
9.8
15.8
9
2.9
4.95
2.4
5.2
2.7
10
16 Typ.
10.7
28.6
30.6
10.7
16.4
9.9
3.5
4.9
2.9
2.75
0.7
1
1.7
1.7
Min.
Max.
0.173
0.098
0.096
0.016
0.024
0.045
0.045
0.195
0.094
0.205
0.106
0.394
0.421
0.630 Typ.
1.126
1.205
0.386
0.622
0.354
0.114
0.421
0.646
0.390
0.138
0.192
0.114
0.108
0.028
0.039
0.067
0.067
Doc ID 022015 Rev 1 7/11
Package information STPS20SM60C
Table 7.
D
2
PAK dimensions
Ref.
L
L2
L3
E
G
B2
B
A1
C2
C
M
A2
*
A
R
V2
D
* FLAT ZONE NO LESS THAN 2mm
L2
L3
M
R
V2
B
B2
C
C2
D
E
G
L
A
A1
A2
Figure 15.
D
2
PAK footprint (dimensions in mm)
16.90
Dimensions
Millimeters Inches
Min.
Max.
4.40
2.49
0.03
0.70
1.14
0.45
1.23
8.95
10.00
4.88
15.00
1.27
1.40
2.40
1.40
1.75
3.20
0°
0.40 typ.
8°
4.60
2.69
0.23
0.93
1.70
0.60
1.36
9.35
10.40
5.28
15.85
Min.
Max.
0.173
0.098
0.001
0.027
0.045
0.017
0.048
0.352
0.393
0.192
0.590
0.050
0.055
0.094
0.055
0.069
0.126
0°
0.016 typ.
8°
0.181
0.106
0.009
0.037
0.067
0.024
0.054
0.368
0.409
0.208
0.624
10.30
3.70
1.30
5.08
8.90
8/11 Doc ID 022015 Rev 1
STPS20SM60C
Table 8.
I
2
PAK dimensions
Package information
E c2
A
L2
L
L1 e e1 b b1
D
A1 c b1 c c2
D e
A
A1 b e1
E
L
L1
L2
Ref.
Dimensions
Millimeters Inches
Min.
4.40
2.40
0.61
1.14
0.49
1.23
8.95
2.40
4.95
10
13
3.50
1.27
Max.
4.60
2.72
0.88
1.70
0.70
1.32
9.35
2.70
5.15
10.40
14
3.93
1.40
Min.
0.173
0.094
0.024
0.044
0.019
0.048
0.352
0.094
0.195
0.394
0.512
0.138
0.050
Max.
0.181
0.107
0.035
0.067
0.028
0.052
0.368
0.106
0.203
0.409
0.551
0.155
0.055
Doc ID 022015 Rev 1 9/11
Ordering information STPS20SM60C
Table 9.
Ordering information
Order code Marking
STPS20SM60CT
STPS20SM60CFP
STPS20SM60CR
STPS20SM60CT
PS20SM60CFP
STPS20SM60CR
STPS20SM60CG-TR STPS20SM60CG
Package
TO-220AB
TO-220FPAB
I
2
PAK
D
2
PAK
Weight Base qty Delivery mode
2.20 g
2.0 g
1.49 g
1.48 g
50
50
50
1000
Tube
Tube
Tube
Tape and reel
Table 10.
Revision history
Date Revision
14-Oct-2011 1 Initial release.
Changes
10/11 Doc ID 022015 Rev 1
STPS20SM60C
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Doc ID 022015 Rev 1 11/11
