VS-STPS20L15GPbF
Vishay High Power Products
Schottky Rectifier, 20 A
FEATURES
Base
cathode
2
•
•
•
•
•
•
3
Anode
D
2
PAK
1
N/C
•
•
•
•
•
20 A
15 V
600 mA at 100 °C
PRODUCT SUMMARY
I
F(AV)
V
R
I
RM
125 °C T
J
operation (V
R
< 5 V)
Center tap module
Optimized for OR-ing applications
Ultralow forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long
term reliability
High purity, high temperature epoxy
encapsulation for enhanced mechanical strength and
moisture resistance
Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
Halogen-free according to IEC 61249-2-21 definition
Compliant to RoHS directive 2002/95/EC
AEC-Q101 qualified
DESCRIPTION
The Schottky rectifier module has been optimized for
ultralow forward voltage drop specifically for the OR-ing
of parallel power supplies. The proprietary barrier
technology allows for reliable operation up to 125 °C
junction temperature. Typical applications are in parallel
switching power supplies, converters, reverse battery
protection, and redundant power subsystems.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
I
F(AV)
V
RRM
I
FSM
V
F
T
J
t
p
= 5 μs sine
19 Apk, T
J
= 125 °C (typical)
Range
CHARACTERISTICS
Rectangular waveform
VALUES
20
15
700
0.25
- 55 to 125
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V
R
V
RWM
TEST CONDITIONS
T
J
= 100 °C
VS-STPS20L15GPbF
15
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
See fig. 5
Maximum peak one cycle
non-repetitive surge current
See fig. 7
Non-repetitive avalanche energy
Repetitive avalanche current
SYMBOL
I
F(AV)
TEST CONDITIONS
50 % duty cycle at T
C
= 85 °C, rectangular waveform
5 μs sine or 3 μs rect. pulse
I
FSM
10 ms sine or 6 ms rect. pulse
E
AS
I
AR
T
J
= 25 °C, I
AS
= 2 A, L = 6 mH
Current decaying linearly to zero in 1 μs
Frequency limited by T
J
maximum V
A
= 1.5 x V
R
typical
Following any rated load
condition and with rated
V
RRM
applied
VALUES
20
700
330
10
2
mJ
A
A
UNITS
Document Number: 94326
Revision: 16-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
1
VS-STPS20L15GPbF
Vishay High Power Products
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
19 A
Forward voltage drop
See fig. 1
V
FM (1)
40 A
19 A
40 A
Reverse leakage current
See fig. 2
Threshold voltage
Forward slope resistance
Maximum junction capacitance
Typical series inductance
Maximum voltage rate of change
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
I
RM (1)
V
F (TO)
r
t
C
T
L
S
dV/dt
T
J
= 25 °C
T
J
= 100 °C
T
J
= T
J
maximum
V
R
= 5 V
DC
(test signal range 100 kHz to 1 MHz), 25 °C
Measured lead to lead 5 mm from package body
Rated V
R
-
8
10 000
TEST CONDITIONS
T
J
= 25 °C
T
J
= 125 °C
V
R
= Rated V
R
TYP.
-
-
0.25
0.37
-
-
0.182
7.6
2000
-
MAX.
0.41
0.52
0.33
0.50
10
600
mA
V
mΩ
pF
nH
V/μs
V
UNITS
Schottky Rectifier, 20 A
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction temperature range
Maximum storage temperature range
Maximum thermal resistance,
junction to case
Typical thermal resistance,
case to heatsink
Maximum thermal resistance,
junction to ambient
Approximate weight
minimum
maximum
SYMBOL
T
J
T
Stg
R
thJC
R
thCS
R
thJA
DC operation
See fig. 4
Mounting surface, smooth and greased (for TO-220)
DC operation (for D
2
PAK)
TEST CONDITIONS
VALUES
- 55 to 125
- 55 to 150
1.5
0.50
40
2
0.07
Non-lubricated threads
Case style D
2
PAK
6 (5)
12 (10)
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
Mounting torque
Marking device
STPS20L15G
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For technical questions, contact:
diodestech@vishay.com
Document Number: 94326
Revision: 16-Mar-10
VS-STPS20L15GPbF
Schottky Rectifier, 20 A
Vishay High Power Products
1000
1000
I
R
- Reverse Current (mA)
T
J
= 100 °C
100
I
F
- Instantaneous
Forward Current (A)
100
T
J
= 75 °C
10
T
J
= 50 °C
10
T
J
= 125 °C
T
J
= 75 °C
T
J
= 25 °C
1
T
J
= 25 °C
1
0.1
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
3
6
9
12
15
V
FM
- Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
V
R
- Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10 000
C
T
- Junction Capacitance (pF)
T
J
= 25 °C
1000
100
0
5
10
15
20
V
R
- Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
Z
thJC
- Thermal Impedance (°C/W)
10
1
P
DM
t
1
t
2
0.1
Single pulse
(thermal resistance)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
Notes:
1. Duty factor D = t
1
/t
2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t
1
- Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Document Number: 94326
Revision: 16-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
3
VS-STPS20L15GPbF
Vishay High Power Products
100
Schottky Rectifier, 20 A
Allowable Case Temperature (°C)
14
Average Power Loss (W)
95
90
85
12
10
8
6
4
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS limit
Square
wave
(D = 0.50)
80
75
DC
2
0
See note (1)
70
0
4
8
12
16
20
24
0
5
10
15
20
25
30
I
F(AV)
- Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
I
F(AV)
- Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
I
FSM
- Non-Repetitive Surge Current (A)
1000
At any rated load condition
and
with
rated V
RRM
applied
following surge
100
10
100
1000
10 000
t
p
- Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
High-speed
switch
Freewheel
diode
40HFL40S02
+ V
d
= 25 V
D.U.T.
IRFP460
R
g
= 25
Ω
Current
monitor
Fig. 8 - Unclamped Inductive Test Circuit
(1)
Note
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
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For technical questions, contact:
diodestech@vishay.com
Document Number: 94326
Revision: 16-Mar-10
VS-STPS20L15GPbF
Schottky Rectifier, 20 A
ORDERING INFORMATION TABLE
Device code
Vishay High Power Products
VS- STPS
1
1
2
3
4
5
6
7
-
-
-
-
-
-
-
2
20
3
L
4
15
5
G
6
TRL PbF
7
8
HPP product suffix
Essential part number
Current rating (20 = 20 A)
Low voltage
Voltage rating (15 = 15 V)
G = D
2
PAK package
None = Tube (50 pieces)
TRL = Tape and reel (left oriented)
TRR = Tape and reel (right oriented)
8
-
PbF = Lead (Pb)-free (for D
2
PAK tube)
P = Lead (Pb)-free (for D
2
PAK TRR and TRL)
LINKS TO RELATED DOCUMENTS
Dimensions
Part marking information
Packaging information
www.vishay.com/doc?95046
www.vishay.com/doc?95054
www.vishay.com/doc?95032
Document Number: 94326
Revision: 16-Mar-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
5
