August 2016
DocID3510 Rev 9
1/13
This is information on a product in full production.
www.st.com
STPS3045C
Power Schottky rectifier
Datasheet - production data
Features
Very small conduction losses
Negligible switching losses
Extremely fast switching
Avalanche rated
ECOPACK®2 compliant component for
D²PAK on demand
Description
Dual center tap Schottky rectifier suited for switch
mode power supply and high frequency DC to
DC converters. Packaged either in TO-220AB,
TO-247, or D²PAK, this device is especially
intended for use in low voltage, high frequency
inverters, free wheeling and polarity protection
applications.
Table 1: Device summary
Symbol
Value
IF(AV)
2 x 15 A
VRRM
45 V
VF (typ.)
0.5 V
Tj (max.)
175 °C ( up to 200 °C in forward mode for
D²PAK)
KK
A1 A1
A2 A2
D²PAK
A1 K
A2
A1KA2
TO-220AB
K
A1KA2
TO-247
Characteristics
STPS3045C
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1 Characteristics
Table 2: Absolute ratings (limiting values, per diode, at 25 °C, unless otherwise specified)
Symbol
Parameter
Value
Unit
VRRM
Repetitive peak reverse voltage
45
V
IF(RMS)
Forward rms current
30
A
IF(AV)
Average forward current
δ = 0.5, square wave
TC = 155 °C
Per diode
15
A
Per device
30
IFSM
Surge non repetitive forward current
tp = 10 ms
sinusoidal
220
A
PARM(1)
Repetitive peak avalanche power
tp = 10 µs,
Tj = 125 °C
430
W
Tstg
Storage temperature range
-65 to +175
°C
Tj
Maximum operating junction temperature (2)
175
Maximum operating junction temperature (DC forward current
without reverse bias, t = 1 hour for D²PAK
200
Notes:
(1)For pulse time duration deratings, please refer to Figure 3. More details regarding the avalanche energy
measurements and diode validation in the avalanche are provided in the STMicroelectronics Application notes
AN1768, “Admissible avalanche power of Schottky diodes” and AN2025, “Converter improvement using Schottky
rectifier avalanche specification”.
(2)(dPtot/dTj) < (1/Rth(j-a)) condition to avoid thermal runaway for a diode on its own heatsink.
Table 3: Thermal parameters
Symbol
Parameter
Value
Unit
Rth(j-c)
Junction to case
TO-220AB / D²PAK
Per diode
1.60
°C/W
Total
0.95
TO-247
Per diode
1.5
Total
0.9
Rth(c)
Coupling
TO-220AB / D²PAK/ TO-247
0.3
When the diodes 1 and 2 are used simultaneously:
ΔTj (diode1) = P(diode1) x Rth(j-c) (per diode) + P(diode2) x Rth(c)
STPS3045C
Characteristics
DocID3510 Rev 9
3/13
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
-
200
µA
Tj = 125 °C
-
11
40
mA
VF(1)
Forward voltage drop
Tj = 125 °C
IF = 15 A
-
0.5
0.57
V
Tj = 25 °C
IF = 30 A
-
0.84
Tj = 125 °C
-
0.65
0.72
Notes:
(1)Pulse test: tp = 380 µs, δ < 2%
To evaluate the conduction losses use the following equation:
P = 0.42 x IF(AV) + 0.01 x IF2(RMS)
Characteristics
STPS3045C
4/13
DocID3510 Rev 9
1.2 Characteristics (curves)
Figure 1: Average forward power dissipation
versus average forward current (per diode)
Figure 2: Average forward current versus ambient
temperature (δ = 0.5, per diode)
Figure 3: Normalized avalanche power derating
versus pulse duration (Tj = 125 °C)
Figure 4: Relative variation of thermal impedance
junction to case versus pulse duration
Figure 5: Junction capacitance versus reverse
voltage applied (typical values, per diode)
Figure 6: Reverse leakage current versus reverse
voltage applied (typical values, per diode)
P (W)
F(AV)
0
1
2
3
4
5
6
7
8
9
10
11
12
0 2 4 6 8 10 12 14 16 18 20
δ= 0.05 δ= 0.1 δ= 0.2 δ= 0.5
δ= 1
T
δ= tp/T tp
IF(AV)(A)
I (A)
F(AV)
0
2
4
6
8
10
12
14
16
18
0 25 50 75 100 125 150 175
Tamb(°C)
T
δ=tp/T tp
R = 15°C/W
th(j-a)
R =
th(j-a) Rth(j-c)
P (tp)
P (10 µs)
ARM
ARM
0.001
0.01
0.1
1
1 10 100 1000
t (µs)
p
Z /R
th(j-c) th(j-c)
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
t (s)
p
T
δ= tp/T tp
δ= 0.5
δ= 0.2
δ= 0.1
Single pulse
C(nF)
100
1000
10000
1 10 100
VR(V)
F=1 MHz
VOSC = 30 mVRMS
T =25 °C
j
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
0 5 10 15 20 25 30 35 40 45
I (µA)
R
T =150°C
j
T =125°C
j
T =100°C
j
T =75°C
j
T =50°C
j
T =25°C
j
V (V)
R
STPS3045C
Characteristics
DocID3510 Rev 9
5/13
Figure 7: Forward voltage drop versus forward
current (maximum values, per diode)
Figure 8: Thermal resistance junction to ambient
versus copper surface under tab
0
10
20
30
40
50
60
70
80
0 5 10 15 20 25 30 35 40
Rth(j-a) (°C/W)
D²PAK
Epoxy printed board FR4, copper thickness = 35 µm
SCu(cm²)
Package information
STPS3045C
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DocID3510 Rev 9
2 Package information
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.
Cooling method: by conduction (C)
Epoxy meets UL 94,V0
Recommended torque value: 0.55 N·m (for TO-220AB and TO-247)
Maximum torque value: 0.7 N·m (for TO-220AB)
Maximum torque value: 1.0 N·m (for TO-247)
2.1 TO-220AB package information
Figure 9: TO-220AB package outline
STPS3045C
Package information
DocID3510 Rev 9
7/13
Table 5: TO-220AB package mechanical data
Ref.
Dimensions
Millimeters
Inches
Min.
Max.
Min.
Max.
A
4.40
4.60
0.173
0.181
b
0.61
0.88
0.024
0.035
b1
1.14
1.55
0.045
0.061
c
0.48
0.70
0.019
0.028
D
15.25
15.75
0.600
0.620
D1
1.27 typ.
0.050 typ.
E
10.00
10.40
0.394
0.409
e
2.40
2.70
0.094
0.106
e1
4.95
5.15
0.195
0.203
F
1.23
1.32
0.048
0.052
H1
6.20
6.60
0.244
0.260
J1
2.40
2.72
0.094
0.107
L
13.00
14.00
0.512
0.551
L1
3.50
3.93
0.138
0.155
L20
16.40 typ.
0.646 typ.
L30
28.90 typ.
1.138 typ.
ØP
3.75
3.85
0.148
0.152
Q
2.65
2.95
0.104
0.116
Package information
STPS3045C
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DocID3510 Rev 9
2.2 TO-247 package information
Figure 10: TO-247 package outline
STPS3045C
Package information
DocID3510 Rev 9
9/13
Table 6: TO-247 package mechanical data
Ref.
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
4.85
5.15
0.191
0.203
A1
2.20
2.60
0.086
0.102
b
1.00
1.40
0.039
0.055
b1
2.00
2.40
0.078
0.094
b2
3.00
3.40
0.118
0.133
c
0.40
0.80
0.015
0.031
D(1)
19.85
20.15
0.781
0.793
E
15.45
15.75
0.608
0.620
e
5.30
5.45
5.60
0.209
0.215
0.220
L
14.20
14.80
0.559
0.582
L1
3.70
4.30
0.145
0.169
L2
18.50
0.728
ØP(2)
3.55
3.65
0.139
0.143
ØR
4.50
5.50
0.177
0.217
S
5.30
5.50
5.70
0.209
0.216
0.224
Notes:
(1)Dimension D plus gate protusion does not exceed 20.5 mm
(2)Resin thickness around the mounting hole is not less than 0.9 mm.
Package information
STPS3045C
10/13
DocID3510 Rev 9
2.3 D²PAK package information
Figure 11: D²PAK package outline
This package drawing may slightly differ from the physical package. However, all
the specified dimensions are guaranteed.
STPS3045C
Package information
DocID3510 Rev 9
11/13
Table 7: D²PAK package mechanical data
Ref.
Dimensions
Millimeters
Inches
Min.
Max.
Min.
Max.
A
4.36
4.60
0.172
0.181
A1
0.00
0.25
0.000
0.010
b
0.70
0.93
0.028
0.037
b2
1.14
1.70
0.045
0.067
c
0.38
0.69
0.015
0.027
c2
1.19
1.36
0.047
0.053
D
8.60
9.35
0.339
0.368
D1
6.90
8.00
0.272
0.311
D2
1.10
1.50
0.043
0.060
E
10.00
10.55
0.394
0.415
E1
8.10
8.90
0.319
0.346
E2
6.85
7.25
0.266
0.282
e
2.54 typ.
0.100
e1
4.88
5.28
0.190
0.205
H
15.00
15.85
0.591
0.624
J1
2.49
2.90
0.097
0.112
L
1.90
2.79
0.075
0.110
L1
1.27
1.65
0.049
0.065
L2
1.30
1.78
0.050
0.070
R
0.4 typ.
0.015
V2
0°
8°
0°
8°
Figure 12: D²PAK recommended footprint (dimensions in mm)
Ordering information
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DocID3510 Rev 9
3 Ordering information
Table 8: Ordering information
Order code
Marking
Package
Weight
Base qty.
Delivery mode
STPS3045CT
STPS3045CT
TO-220AB
1.9 g
50
Tube
STPS3045CG
STPS3045CG
D²PAK
1.38 g
50
Tube
STPS3045CG-TR
STPS3045CG
1000
Tape and reel
STPS3045CW
STPS3045CW
TO-247
4.46 g
30
Tube
4 Revision history
Table 9: Document revision history
Date
Revision
Changes
Jul-2003
6E
Last update.
06-Nov-2012
7
Removed SOT-93 and TOP-3I packages. Table 2: Operating range (Tj)
extension from -40 to +175° C, IF(AV) per diode updated to 15 A.
Updated “Total” values in Table 3. Updated tables in Section 2:
Package information.
04-Apr-2013
8
Added value for maximum Tj in forward mode. Updated Table 9.
02-Aug-2016
9
Updated D²PAK package information. Removed I²PAK and
TO-220FPAB package information.
STPS3045C
DocID3510 Rev 9
13/13
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