STMICROELECTRONICS STPS2545CT

STPS2545C
Power Schottky rectifier
Features
■
Very small conduction losses
■
Negligible switching losses
■
Extremely fast switching
■
Low thermal resistance
■
Avalanche capability specified
■
ECOPACK®2 compliant component
(STPS2545CT)
A1
A2
K
K
A1
TO-220AB
STPS2545CT
K
Description
Dual center tab Schottky rectifier suited for switch
mode power supplies and high frequency DC to
DC converters.
This device is especially intended for use in low
volage, high frequency inverters, free-wheeling
and polarity protection applications.
June 2010
A2
A2
A2
K
A1
TO-220FPAB
STPS2545CFP
Table 1.
Doc ID 8736 Rev 3
A1
D2PAK
STPS2545CG
Device summary
Symbol
Value
IF(AV)
2 x 12.5 A
VRRM
45 V
Tj (max)
175 °C
VF(max)
0.57 V
1/10
www.st.com
10
Characteristics
STPS2545C
1
Characteristics
Table 2.
Absolute ratings (limiting values, per diode)
Symbol
Value
Unit
VRRM
Repetitive peak reverse voltage
45
V
IF(RMS)
Forward rms current
30
A
TO-220AB D2PAK
Tc =160 °C Per diode
12.5
TO-220FPAB
Tc =140 °C Per device
25
Surge non repetitive forward current
tp = 10 ms sinusoidal
200
A
IRRM
Repetitive peak reverse current
tp = 2 µs square F=1 kHz
1
A
IRSM
Non repetitive peak reverse current
tp = 100 µs square
2
A
PARM
Repetitive peak avalanche power
tp = 1 µs Tj = 25 °C
4800
W
-65 to + 175
°C
175
°C
10000
V/µs
Value
Unit
IF(AV)
Average forward current
δ = 0.5
IFSM
Tstg
Tj
dV/dt
1.
Parameter
Storage temperature range
Maximum operating junction
temperature(1)
Critical rate of rise reverse voltage
A
1
dPtot <
condition to avoid thermal runaway for a diode on its own heatsink
Rth(j-a)
dTj
Table 3.
Thermal resistances
Symbol
Parameter
TO-220AB / D2PAK Per diode
TO-220FPAB
Rth (j-c)
Rth (c)
Junction to ambient
4
TO-220AB / D2PAK Total
1.1
TO-220FPAB
3.5
TO-220AB / D2PAK
0.6
Coupling
TO-220FPAB
When the diodes 1 and 2 are used simultaneously :
ΔTj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c)
2/10
1.6
Doc ID 8736 Rev 3
3
° C/W
° C/W
° C/W
STPS2545C
Table 4.
Characteristics
Static electrical characteristics (per diode)
Symbol
IR (1)
VF (1)
Parameter
Tests Conditions
Tj = 25 °C
Reverse leakage current
Typ.
Max.
Unit
125
µA
9
25
mA
0.50
0.57
VR = VRRM
Tj = 125 °C
Forward voltage drop
Min.
Tj = 125 °C
IF = 12.5 A
Tj = 25 °C
IF = 25 A
Tj = 125 °C
IF = 25 A
V
0.84
0.65
0.72
1. Pulse test : tp = 380 µs, δ < 2%
To evaluate the conduction losses use the following equation :
P = 0.42 x IF(AV) + 0.012 x IF2(RMS)
Figure 1.
Conduction losses versus average Figure 2.
current)
Average forward current versus
ambient temperature (δ = 0.5)
IF(AV)(A)
PF(AV)(W)
14
10
δ = 0.05 δ = 0.1
9
δ = 0.2
δ = 0.5
TO-220AB/D²PAK
Rth(j-a)=Rth(j-c)
12
8
10
δ=1
7
6
8
5
6
4
Rth(j-a)=50°C/W
3
4
T
2
T
2
1
IF(AV)(A)
δ=tp/T
0
0.0
2.5
Figure 3.
5.0
7.5
10.0
δ=tp/T
tp
0
12.5
15.0
Normalized avalanche power
derating versus pulse duration
0
25
Figure 4.
PARM(tp)
PARM(1µs)
1.2
1
Tamb(°C)
tp
50
75
100
125
150
175
Normalized avalanche power
derating versus junction
temperature
PARM(tp)
PARM(25°C)
1
0.8
0.1
0.6
0.4
0.01
0.2
0.01
Tj(°C)
tp(µs)
0.001
0.1
1
0
10
100
1000
0
Doc ID 8736 Rev 3
25
50
75
100
125
150
3/10
Characteristics
Figure 5.
STPS2545C
Non repetitive surge peak forward
current versus overload duration
(maximum values)
Figure 6.
IM(A)
Relative variation of thermal
impedance junction to case versus
pulse duration (TO-220FPAB)
IM(A)
200
120
2
TO-220AB, D PAK
180
100
160
140
120
80
TC=25°C
60
TC=75°C
TC=25°C
100
TC=75°C
80
TC=125°C
40
t(s)
t
δ=0.5
0
1.E-03
t(s)
t
δ=0.5
0
1.E-02
Figure 7.
1.E-01
1.E+00
1.E-03
Relative variation of thermal
Figure 8.
impedance junction to case versus
pulse duration (TO-220AB, D2PAK)
1.E-02
1.E-01
1.E+00
Relative variation of thermal
impedance junction to case versus
pulse duration (TO-220FPAB)
Zth(j-c) / Rth(j-c)
Zth(j-c) / Rth(j-c)
1.0
1.0
0.9
0.9
0.8
0.8
0.7
0.7
0.6
IM
20
IM
20
TC=125°C
40
60
δ = 0.5
0.6
0.5
δ = 0.5
0.5
0.4
δ = 0.2
0.3
δ = 0.1
0.4
0.3
T
0.2
0.2
δ = 0.2
T
δ = 0.1
Single pulse
0.1
tP(s)
0.0
1.E-03
1.E-02
Figure 9.
0.1
δ=tp/T
1.E-01
tP(s)
Single pulse
tp
1.E+00
Reverse leakage current versus
reverse voltage applied
(typical values)
0.0
1.E-03
1.E-02
1.E-01
δ=tp/T
tp
1.E+00
1.E+01
Figure 10. Junction capacitance versus
reverse voltage applied
(typical values)
IR(mA)
C(nF)
1.E+02
10.0
F=1MHz
Vosc=30mV
Tj=25°C
Tj=150°C
1.E+01
Tj=125°C
Tj=100°C
1.E+00
1.0
Tj=75°C
1.E-01
Tj=50°C
1.E-02
Tj=25°C
VR(V)
VR(V)
0.1
1.E-03
0
4/10
5
10
15
20
25
30
35
40
45
1
Doc ID 8736 Rev 3
10
100
STPS2545C
Characteristics
Figure 11. Forward voltage drop versus
forward current
Figure 12. Thermal resistance junction to
ambient versus copper surface
under tab
Rth(j-a)(°C/W)
IFM(A)
80
100
epoxy printed board FR4, Cu = 35 µm
70
Tj=125°C
(Maximum values)
60
Tj=125°C
(Typical values)
50
Tj=25°C
(Maximum values)
10
40
30
20
10
S(cm²)
VFM(V)
1
0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
Doc ID 8736 Rev 3
5
10
15
20
25
30
35
40
5/10
Package information
2
STPS2545C
Package information
●
Epoxy meets UL94, V0
●
Lead-free packages
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
Dimensions
Ref.
Dia
C
L5
L7
L6
L2
F2
D
L9
L4
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
F
M
G1
Inches
A
H2
F1
Millimeters
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
E
G
M
Diam.
6/10
Doc ID 8736 Rev 3
2.6 typ.
3.75
3.85
0.102 typ.
0.147
0.151
STPS2545C
Package information
Table 6.
TO-220FPAB dimensions
Dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
4.4
4.6
0.173
0.181
B
2.5
2.7
0.098
0.106
D
2.5
2.75
0.098
0.108
E
0.45
0.70
0.018
0.027
F
0.75
1
0.030
0.039
F1
1.15
1.70
0.045
0.067
F2
1.15
1.70
0.045
0.067
G
4.95
5.20
0.195
0.205
G1
2.4
2.7
0.094
0.106
H
10
10.4
0.393
0.409
A
B
H
Dia
L6
L2
L7
L3
L5
F1
L4
D
F2
F
L2
E
G1
G
Doc ID 8736 Rev 3
16 Typ.
0.63 Typ.
L3
28.6
30.6
1.126
1.205
L4
9.8
10.6
0.386
0.417
L5
2.9
3.6
0.114
0.142
L6
15.9
16.4
0.626
0.646
L7
9.00
9.30
0.354
0.366
Dia.
3.00
3.20
0.118
0.126
7/10
Package information
Table 7.
STPS2545C
D2PAK dimensions
Dimensions
Ref.
A
E
C2
L2
D
L
L3
A1
B2
R
C
B
G
A2
M
*
V2
* FLAT ZONE NO LESS THAN 2mm
Millimeters
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
V2
0.40 typ.
0°
16.90
10.30
5.08
1.30
8/10
Doc ID 8736 Rev 3
3.70
0.016 typ.
8°
Figure 13. Footprint (dimensions in mm)
8.90
Inches
0°
8°
STPS2545C
3
Ordering information
Ordering information
Table 8.
Ordering information
Order code
Marking
Package
Weight
Base qty
Delivery mode
STPS2545CT
STPS2545CT
TO-220AB
2.20 g
50
Tube
2.0 g
50
Tube
STPS2545CFP
4
STPS2545CFP TO-220FPAB
2
STPS2545CG
STPS2545CG
D PAK
1.48 g
50
Tube
STPS2545CG-TR
STPS2545CG
D2PAK
1.48 g
1000
Tape and reel
Revision history
Table 9.
Document revision history
Date
Revision
July-2003
2A
21-Jun-2010
3
Changes
Last release.
Updated ECOPACK statement.
Doc ID 8736 Rev 3
9/10
STPS2545C
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10/10
Doc ID 8736 Rev 3