STMICROELECTRONICS STPS2545CT-Y

STPS2545CT-Y
Automotive power Schottky rectifier
Datasheet − production data
Features
A1
■
Very small conduction losses
■
Negligible switching losses
■
Extremely fast switching
■
Low thermal resistance
■
Avalanche capability specified
■
AEC-Q101 qualified
K
A2
A2
A1
Description
TO-220AB
Dual center tab Schottky rectifier suited for switch
mode power supplies and high frequency DC to
DC converters.
Table 1.
This device is especially intended for use in low
voltage, high frequency inverters, free-wheeling
and polarity protection in automotive applications.
June 2012
This is information on a product in full production.
K
Doc ID 18183 Rev 2
Device summary
Symbol
Value
IF(AV)
2 x 12.5 A
VRRM
45 V
Tj (max)
175 °C
VF(max)
0.57 V
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Characteristics
1
STPS2545CT-Y
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
12.5
A
IF(AV)
Average forward current δ = 0.5
Tc = 160 °C
IFSM
Surge non repetitive forward current
tp = 10 ms sinusoidal
200
A
PARM
Repetitive peak avalanche power
tp = 1 µs, Tj = 25 °C
4800
W
-65 to + 175
°C
-40 to + 175
°C
10000
V/µs
Value
Unit
1.6
°C/W
0.6
°C/W
Tstg
Tj
dV/dt
1.
Parameter
Per diode
Storage temperature range
Operating junction temperature
range(1)
Critical rate of rise reverse voltage
1
dPtot <
condition to avoid thermal runaway for a diode on its own heatsink.
Rth(j-a)
dTj
Table 3.
Thermal resistances parameters
Symbol
Parameter
Rth (j-c)
Junction to case
Rth (c)
Coupling
Per diode
When the 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 4.
Symbol
IR (1)
VF
(1)
Static electrical characteristics (per diode)
Parameter
Reverse leakage
current
Forward voltage drop
Tests conditions
Tj = 25 °C
Tj = 125 °C
Min.
VR = VRRM
Tj = 125 °C
IF = 12.5 A
Tj = 25 °C
IF = 25 A
Tj = 125 °C
IF = 25 A
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)
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Doc ID 18183 Rev 2
Typ.
Max.
Unit
125
µA
9
25
mA
0.50
0.57
0.84
0.65
0.72
V
STPS2545CT-Y
Figure 1.
Characteristics
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
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
Tamb(°C)
tp
25
Figure 4.
50
75
100
125
150
175
Normalized avalanche power
derating versus junction
temperature
PARM(Tj)
PARM(25 °C)
PARM(tp)
PARM(1 µs)
1.2
1
1
0.8
0.1
0.6
0.4
0.01
0.2
Tj(°C)
tp(µs)
0.001
0.01
0.1
Figure 5.
1
0
10
100
1000
Non repetitive surge peak forward
current versus overload duration
(maximum values)
25
50
Figure 6.
IM(A)
75
100
125
150
Relative variation of thermal
impedance junction to case versus
pulse duration
Zth(j-c) / Rth(j-c)
200
1.0
180
0.9
160
0.8
140
0.7
120
TC=25°C
100
TC=75°C
80
0.6
δ = 0.5
0.5
0.4
δ = 0.2
60
0.3
δ = 0.1
40
0.2
TC=125°C
IM
20
0
1.E-03
T
Single pulse
0.1
t(s)
t
δ=0.5
1.E-02
1.E-01
1.E+00
0.0
1.E-03
Doc ID 18183 Rev 2
tP(s)
1.E-02
δ=tp/T
1.E-01
tp
1.E+00
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Characteristics
Figure 7.
STPS2545CT-Y
Reverse leakage current versus
reverse voltage applied
(typical values)
Figure 8.
IR(mA)
Junction capacitance versus
reverse voltage applied
(typical values)
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
5
Figure 9.
10
15
20
25
30
35
40
1
45
Forward voltage drop versus
forward current
10
100
Figure 10. Thermal resistance junction to
ambient versus copper surface
under tab
Rth(j-a)(°C/W)
IFM(A)
80
100
Epoxy printed circuit board FR4,
copper thickness = 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
4/7
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
Doc ID 18183 Rev 2
5
10
15
20
25
30
35
40
STPS2545CT-Y
2
Package information
Package information
●
Epoxy meets UL94, V0
●
Lead-free package
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
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
C
L5
L7
L6
L2
F2
D
L9
L4
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.
Note:
2.6 typ.
3.75
3.85
0.102 typ.
0.147
0.151
Leads are raw copper on all exposed areas before plating finishing.
Doc ID 18183 Rev 2
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Ordering information
3
Ordering information
Table 6.
4
Ordering information
Order code
Marking
Package
Weight
Base qty
Delivery mode
STPS2545CTY
STPS2545CTY
TO-220AB
1.9 g
50
Tube
Revision history
Table 7.
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STPS2545CT-Y
Document revision history
Date
Revision
Changes
19-Sep-2011
1
First issue.
28-Jun-2012
2
Corrected typographical error in Table 3.
Doc ID 18183 Rev 2
STPS2545CT-Y
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Doc ID 18183 Rev 2
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