STPS40170C
Datasheet
170 V power Schottky rectifier
A1
A2
TO-220AB
A1
K
A2
TO-247
K
A1
K
A2
D²PAK A1
A2
K
Product status link
STPS40170C
Product summary
Symbol
I
F(AV)
V
RRM
T j
V
F
(typ.)
Value
2 x 20 A
170 V
175 °C
0.69 V
Features
• High junction temperature capability
• Low leakage current
• High voltage capabilities
• Good trade-off between leakage current and forward voltage drop
• Low thermal resistance
• High frequency operation
• Avalanche specification
• ECOPACK ® 2 compliant for TO-220AB and TO-247, on demand for D²PAK
Applications
• Switching diode
• SMPS
• DC/DC converter
• Telecom power
Description
This dual center tab Schottky rectifier is suited for high frequency switched mode power supplies.
Packaged in TO-247, D²PAK and TO-247, the STPS40170C is optimized for use to enhance the reliability in applications.
DS4412 - Rev 2 - June 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
1
STPS40170C
Characteristics
Characteristics
Table 1. Absolute ratings (limiting values at 25 °C, unless otherwise specified, per diode)
Symbol
V
RRM
I
F(RMS)
Repetitive peak reverse voltage
Forward rms current
Parameter
I
F(AV)
I
FSM
P
ARM
T stg
T j
Average forward current, δ = 0.5 square wave
Surge non repetitive forward current
Repetitive peak avalanche power
Storage temperature range
Maximum operating junction temperature range (1)
T c
= 150 °C
T c
= 145 °C t p
= 10 ms sinusoidal t p
= 10 µs, T j
Per diode
Per device
= 125 °C
1. (dP tot
/dT j
) < (1/R th(j-a)
) condition to avoid thermal runaway for a diode on its own heatsink.
Value
170
60
20
40
250
1015
-65 to +175
175
Unit
V
A
A
A
W
°C
°C
Symbol
R th(j-c)
R th(c)
Junction to case
Table 2. Thermal resistance parameters
Parameter
Per diode
Total
Coupling
Max. value
1.20
0.85
0.50
Unit
°C/W
When the diodes 1 and 2 are used simultaneously :
ΔT j
(diode 1) = P(diode1) x R th(j-c)
(per diode) + P(diode 2) x R th(c)
Symbol
I
R
(1)
V
F
(2)
Table 3. Static electrical characteristics (per diode)
Parameter
Reverse leakage current
Forward voltage drop
Test conditions
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
T j
= 25 °C
T j
= 125 °C
I
I
V
F
F
R
= V
RRM
= 20 A
= 40 A
-
-
-
Min.
-
-
-
1. Pulse test: t p
= 5 ms, δ < 2%
2. Pulse test: t p
= 380 µs, δ < 2%
Typ.
7
0.69
0.79
To evaluate the conduction losses, use the following equation:
P = 0.64 x I
F(AV)
+ 0.0055 x I
F
2
(RMS)
For more information, please refer to the following application notes related to the power losses :
• AN604: Calculation of conduction losses in a power rectifier
• AN4021: Calculation of reverse losses on a power diode
Max.
30
30
0.92
0.75
1.00
0.86
Unit
µA mA
V
DS4412 - Rev 2 page 2/15
STPS40170C
Characteristics (curves)
1.1
Characteristics (curves)
Figure 1. Average forward power dissipation versus average forward current (per diode)
8
6
4
2
0
0
22
20
18
16
14
12
10
P
F(AV)
(W)
2 4
δ=0.05
δ=0.1
δ=0.2
δ=0.5
T
δ=1.0
6 8
I
F(AV)
(A)
δ = tp/T
I
F(AV)
10 12 14 16 18 20 22 24 26 28
Figure 2. Average forward current versus ambient temperature (δ = 0.5, per diode)
14
12
10
8
6
22
I
F(AV)
(A)
20
18
16
4
2
0
0 25 50 75 100 125 150 175
Figure 3. Normalized avalanche power derating versus pulse duration (T j
= 125 °C)
1
P
ARM
(tp)
P
ARM
(10 µs)
0.1
0.01
0.001
1 10 100 1000
Figure 4. Relative variation of thermal impedance junction to case versus pulse duration
Z th(j-c)
/ R
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.E-03
Single pulse
1.E-02 1.E-01 1.E+00
DS4412 - Rev 2 page 3/15
STPS40170C
Characteristics (curves)
Figure 5. Reverse leakage current versus reverse voltage applied (typical values, per diode)
Figure 6. Junction capacitance versus reverse voltage applied (typical values, per diode)
1.E+05
I
R
(µA)
1.E+04
1.E+03
1.E+02
T j
= 150 °C
T j
= 125 °C
T j
= 100 °C
T j
= 75 °C
T j
= 50 °C
1.E+01
1.E+00
T j
= 25 °C
1.E-01
0
V
R
(V)
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
C(pF)
1000
100
10
1 10 100
F = 1 MHz
VOSC = 30 mV
RMS
Tj = 25 °C
V
R
(V)
1000
Figure 7. Forward voltage drop versus forward current
(per diode)
100.0
I
F
(A)
T j
= 125 °C
(maximum values)
10.0
T j
= 125 °C
(typical values)
1.0
T j
= 25 °C
(maximum values)
0.1
0.0
0.1
0.2
0.3
V
F
(V)
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Figure 8. Thermal resistance junction to ambient versus copper surface under tab
50
40
30
20
80
R th(j-a)
(°C/W)
70
60
10
0
0 5
D²PAK
Epoxy printed board FR4, copper thickness = 35 µm
10 15 20 25 30
S
Cu
(cm²)
35 40
DS4412 - Rev 2 page 4/15
2
2.1
STPS40170C
Package information
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.
•
•
D²PAK package information
Epoxy meets UL94, V0
Cooling method: by conduction (C)
DS4412 - Rev 2 page 5/15
Figure 9. D²PAK package outline
STPS40170C
D²PAK package information
Note: This package drawing may slightly differ from the physical package. However, all the specified dimensions are guaranteed.
DS4412 - Rev 2 page 6/15
DS4412 - Rev 2
Ref.
L2
R
V2
J1
L
L1
E1
E2 e e1
H c2
D
D1
D2
E
A
A1 b b2 c
STPS40170C
D²PAK package information
4.88
15.00
2.49
1.90
1.27
1.30
Min.
1.19
8.60
6.90
1.10
10.00
8.10
6.85
4.36
0.00
0.70
1.14
0.38
Table 4. D²PAK package mechanical data
Dimensions
Millimeters
Max.
1.36
9.35
8.00
1.50
10.55
8.90
7.25
4.60
0.25
0.93
1.70
0.69
Min.
0.047
0.339
0.272
0.043
0.394
0.319
0.266
0.172
0.000
0.028
0.045
0.015
2.54 typ.
5.28
15.85
2.90
2.79
1.65
1.78
0.190
0.591
0.097
0.075
0.049
0.050
0.4 typ.
0° 8° 0°
Inches
0.100
0.015
Max.
0.053
0.368
0.311
0.060
0.415
0.346
0.282
0.181
0.010
0.037
0.067
0.027
0.205
0.624
0.112
0.110
0.065
0.070
8° page 7/15
12.20
STPS40170C
D²PAK package information
Figure 10. D²PAK recommended footprint (dimensions in mm)
16.90
3.50
2.54
1.60
5.08
9.75
DS4412 - Rev 2 page 8/15
STPS40170C
TO-247 package information
2.2
•
•
•
•
TO-247 package information
Epoxy meets UL94, V0
Cooling method: by conduction (C)
Recommended torque value: 0.8 N·m
Maximum torque value: 1.0 N·m
Figure 11. TO-247 package outline
E
S
∅
R
D
L2
L
L1
1 2 b1
3 b2 b e
A1
A
Heat-sink plane
∅
P c
3 2
Back view
1
DS4412 - Rev 2 page 9/15
DS4412 - Rev 2
STPS40170C
TO-247 package information
Table 5. TO-247 package mechanical data
Dimensions
Ref.
c
D
E e
L
A
A1 b b1 b2
L1
L2
ØP
ØR
S
Min.
4.85
2.20
1.00
2.00
3.00
0.40
19.85
15.45
5.30
14.20
3.70
3.55
4.50
5.30
Millimeters
Typ.
5.45
18.50
5.50
1. Inches dimensions given for reference only
Max.
0.80
20.15
15.75
5.60
14.80
4.30
5.15
2.60
1.40
2.40
3.40
3.65
5.50
5.70
0.139
0.177
0.209
Min.
0.015
0.781
0.608
0.209
0.559
0.145
0.191
0.086
0.039
0.078
0.118
Inches
Typ.
0.215
0.728
0.216
Max.
0.031
0.793
0.620
0.220
0.582
0.169
0.203
0.102
0.055
0.094
0.133
0.143
0.217
0.224
page 10/15
2.3
•
•
•
•
TO-220AB package information
Epoxy meets UL 94,V0
Cooling method: by conduction (C)
Recommended torque value: 0.55 N·m
Maximum torque value: 0.70 N·m
Figure 12. TO-220AB package outline
STPS40170C
TO-220AB package information
DS4412 - Rev 2
Ref.
A b b1
Min.
4.40
0.61
1.14
Table 6. TO-220AB package mechanical data
Dimensions
Millimeters
Max.
4.60
0.88
1.55
Min.
0.173
0.240
0.045
Inches
Max.
0.181
0.035
0.061
page 11/15
Ref.
e e1
F
H1
J1
L
L1
L20
L30
θP
Q c
D
D1
E
STPS40170C
TO-220AB package information
Millimeters
Min.
0.48
15.25
10.00
2.40
4.95
1.23
6.20
2.40
13.00
3.50
1.27 typ.
16.40 typ.
28.90 typ.
3.75
2.65
Max.
0.70
15.75
10.40
2.70
5.15
1.32
6.60
2.72
14.00
3.93
3.85
2.95
Dimensions
Min.
0.019
0.600
0.394
0.094
0.195
0.048
0.244
0.094
0.512
0.138
0.148
0.104
Inches
0.050 typ.
0.646 typ.
1.138 typ.
Max.
0.028
0.620
0.409
0.106
0.203
0.052
0.260
0.107
0.551
0.155
0.152
0.116
DS4412 - Rev 2 page 12/15
3
STPS40170C
Ordering information
Ordering information
Order code
STPS40170CT
STPS40170CG-TR
STPS40170CW
Table 7. Ordering information
Marking
STPS40170CT
STPS40170CG
STPS40170CW
Package
TO-220AB
D 2 PAK
TO-247
Weight
1.95 g
1.38 g
4.36 g
Base qty.
50
10000
30
Delivery mode
Tube
Tape and reel
Tube
DS4412 - Rev 2 page 13/15
STPS40170C
Revision history
Date
16-Sep-2005
01-Jun-2018 2
Table 8. Document revision history
Version
1
Changes
Initial release.
Updated P
ARM
value and removed "Normalized avalanche power derating" curves.
DS4412 - Rev 2 page 14/15
STPS40170C
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DS4412 - Rev 2 page 15/15
