STPS50U100C
ULVF™ power Schottky rectifier
Features
A1
■
■
■
ultralow forward voltage drop
high current capability
high frequency operation
K
A2
Description
A1
K
A2
K
A1
A2
The STPS50U100C is a dual power Schottky
diode rectifier, suited for high frequency switch
mode power supplies.
Featuring an ultralow forward voltage (ULVF)
drop, this device, packaged in TO-220AB and
I
2
PAK, is intended to be used in notebook, game
station and desktop adaptors as well as server
SMPS. It has been especially designed to help
power supply manufacturers meet the recently
introduced worldwide efficiency standards.
TO-220AB
STPS50U100CT
I
2
PAK
STPS50U100CR
Table 1.
Device summary
Symbol
I
F(AV)
V
RRM
Value
2 x 25 A
100 V
0.64 V
150 °C
V
F
(typ) (25 A @ 125 °C)
T
j
(max)
TM:
ULVF is a trademark of STMicroelectronics
November 2010
Doc ID 16603 Rev 2
1/8
www.st.com
8
Characteristics
STPS50U100C
1
Table 2.
Symbol
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
T
stg
T
j
1.
Characteristics
Absolute ratings (limiting values per diode at 25 °C, unless otherwise specified)
Parameter
Repetitive peak reverse voltage
Forward rms current
Average forward current,
δ
= 0.5
Surge non repetitive forward current
Storage temperature range
Maximum operating junction temperature
(1)
T
C
= 120 °C Per diode
T
C
= 105 °C Per device
t
p
= 10 ms, half sine-wave
Value
100
50
25
50
250
-65 to + 150
150
Unit
V
A
A
A
°C
°C
1
dPtot <
condition to avoid thermal runaway for a diode on its own heatsink
Rth(j-a)
dTj
Table 3.
Symbol
R
th (j-c)
R
th (c)
Thermal resistance
Parameter
Junction to case
Coupling
Per diode
Per device
Value
1.3
0.9
0.45
Unit
°C/W
°C/W
When the diodes 1 and 2 are used simultaneously:
Δ
T
j
(diode 1) = P(diode1) x R
th(j-c)
(Per diode) + P(diode2) x R
th(c)
Table 4.
Symbol
Static electrical characteristics
Parameter
Tests conditions
T
j
= 25 °C
V
R
= 70 V
Min.
-
-
-
V
R
= V
RRM
-
-
I
F
= 5 A
-
-
I
F
= 15 A
-
-
I
F
= 25 A
-
Typ.
15
10
30
15
0.48
0.38
0.58
0.54
0.67
0.64
Max.
-
-
200
40
-
-
-
V
-
0.73
0.7
Unit
µA
mA
µA
mA
I
R
Reverse leakage current
T
j
= 125 °C
T
j
= 25 °C
T
j
= 125 °C
T
j
= 25 °C
T
j
= 125 °C
V
F
Forward voltage drop
T
j
= 25 °C
T
j
= 125 °C
T
j
= 25 °C
T
j
= 125 °C
To evaluate the conduction losses use the following equation: P = 0.475 x I
F(AV)
+ 0.009 I
F2(RMS)
2/8
Doc ID 16603 Rev 2
STPS50U100C
Characteristics
Figure 1.
Average forward power dissipation Figure 2.
versus average forward current
(per diode)
250
Non repetitive surge peak forward
current versus overload duration
(maximum values, per diode)
28
24
20
16
12
8
PF(AV)(W)
δ
= 0.05
δ
= 0.1
δ
= 0.2
δ
= 0.5
IM(A)
δ
=1
225
200
175
150
125
100
75
T
c
= 25 °C
T
c
= 75 °C
T
c
= 125 °C
t
δ
= 0.5
1.E-02
1.E-01
T
50
25
4
δ
= tp / T
IM
0
0
5
10
15
20
tp
25
IF(AV)(A)
30
35
0
1.E-03
t(s)
1.E+00
Figure 3.
Reverse leakage current versus
reverse voltage applied (typical
values, per diode)
Tj = 150 °C
Figure 4.
Average forward current versus
ambient temperature
(δ = 0.5, per diode)
1.E+02
IR(mA)
30
25
20
15
10
IF(AV)(A)
Rth(j-a) = Rth(j-c)
1.E+01
Tj = 125 °C
Tj = 100 °C
1.E+00
Tj = 75 °C
1.E-01
Tj = 50 °C
Tj = 25 °C
5
1.E-02
T
δ
= tp / T
1.E-03
0
10
20
30
40
50
60
70
80
VR(V)
0
90
100
0
tp
25
50
75
Tamb(°C)
100
125
150
Figure 5.
Relative variation of thermal
Figure 6.
impedance junction to case versus
pulse duration
10000
Junction capacitance versus
reverse voltage applied
(typical values, per diode)
F = 1 MHz
Vosc = 30 mVRMS
Tj = 25 °C
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Zth(j-c)/Rth(j-c)
C(pF)
1000
Single pulse
0.0
1.E-04
tp(s)
1.E-03
1.E-02
1.E-01
1.E+00
100
1
10
VR(V)
100
Doc ID 16603 Rev 2
3/8
Application information
Figure 7.
Forward voltage drop versus forward current (per diode)
50
45
40
35
30
25
20
15
10
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
STPS50U100C
IFM(A)
Tj = 125 °C
(Maximum value)
Tj = 125 °C
(Typical value)
Tj = 25 °C
(Maximum value)
VFM(V)
0.9
1.0
2
Application information
It is mandatory to ensure a peak reverse voltage below the V
RRM
absolute rating. ST
recommends the use of an RC clamping snubber circuit in parallel with the STPS50U100C
device.
Figure 8.
Application schematic
R
C
DC/DC input
DC/DC output
STPS50U100C
4/8
Doc ID 16603 Rev 2
STPS50U100C
Package information
3
Package information
●
●
●
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
Dimensions
Ref.
Millimeters
Min.
A
C
H2
Dia
L5
L7
L6
L2
F2
F1
L9
L4
F
G1
G
M
E
D
C
A
Inches
Min.
0.173
0.048
0.094
0.019
0.024
0.044
0.044
0.194
0.094
0.393
Max.
0.181
0.051
0.107
0.027
0.034
0.066
0.066
0.202
0.106
0.409
Max.
4.60
1.32
2.72
0.70
0.88
1.70
1.70
5.15
2.70
10.40
4.40
1.23
2.40
0.49
0.61
1.14
1.14
4.95
2.40
10
D
E
F
F1
F2
G
G1
H2
L2
L4
L5
L6
L7
L9
M
Dia.
16.4 typ.
13
2.65
15.25
6.20
3.50
14
2.95
15.75
6.60
3.93
0.645 typ.
0.511
0.104
0.600
0.244
0.137
0.551
0.116
0.620
0.259
0.154
2.6 typ.
3.75
3.85
0.102 typ.
0.147
0.151
Doc ID 16603 Rev 2
5/8
京公网安备 11010802033920号
EEWORLD
