Page 1
D2PAK
PRODUCT SUMMARY
I
F(AV)
V
R
I
RM
Schottky Rectifier, 20 A
Base
cathode
2
1
N/C Anode
600 mA at 100 °C
3
20 A
15 V
VS-20L15TSPbF
Vishay High Power Products
FEATURES
• 125 °C TJ operation (VR < 5 V)
• Single diode configuration
• Optimized for OR-ing applications
• Ultralow forward voltage drop
• 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 ultra
low 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 CHARACTERISTICS VALUES UNITS
I
F(AV)
V
I
FSM
V
T
RRM
F
J
Rectangular waveform 20 A
15 V
tp = 5 μs sine 700 A
19 Apk, TJ = 125 °C (typical) 0.25 V
Range - 55 to 125 °C
VOLTAGE RATINGS
PARAMETER SYMBOL TEST CONDITIONS VS-20L15TSPbF UNITS
Maximum DC reverse voltage V
Maximum working peak reverse voltage V
R
RWM
TJ = 100 °C 15 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum average forward current
See fig. 5
Maximum peak one cycle non-repetitive
surge current
See fig. 7
Non-repetitive avalanche energy E
Repetitive avalanche current I
I
F(AV)
I
FSM
AR
50 % duty cycle at TC = 85 °C, rectangular waveform 20
5 μs sine or 3 μs rect. pulse
10 ms sine or 6 ms rect. pulse 330
TJ = 25 °C, IAS = 2 A, L = 6 mH 10 mJ
AS
Current decaying linearly to zero in 1 μs
Frequency limited by T
maximum VA = 1.5 x VR typical
J
Following any rated load
condition and with rated
V
applied
RRM
700
2A
A
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Page 2
VS-20L15TSPbF
Vishay High Power Products
Schottky Rectifier, 20 A
ELECTRICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS TYP. MAX. UNITS
19 A
Forward voltage drop
See fig. 1
V
FM
40 A - 0.52
(1)
19 A
40 A 0.37 0.50
Reverse leakage current
See fig. 2
I
RM
Threshold voltage V
Forward slope resistance r
Maximum junction capacitance C
Typical series inductance L
F(TO)
TJ = 25 °C
(1)
T
= 100 °C - 600
J
TJ = TJ maximum
t
VR = 5 VDC, (test signal range 100 kHz to 1 MHz), 25 °C - 2000 pF
T
Measured lead to lead 5 mm from package body 8 - nH
S
Maximum voltage rate of change dV/dt Rated V
T
= 25 °C
J
= 125 °C
T
J
V
= Rated V
R
R
R
-0.41
0.25 0.33
-10
0.182 V
7.6 mΩ
10 000 V/μs
Note
(1)
Pulse width < 300 μs, duty cycle < 2 %
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
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
Mounting torque
minimum
maximum 12 (10)
Marking device Case style D
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 40
Non-lubricated threads
2
PAK 20L15TS
- 55 to 125
°C
- 55 to 150
1.5
0.50
°C/W
2g
0.07 oz.
6 (5)
kgf ⋅ cm
(lbf ⋅ in)
V
mA
www.vishay.com For technical questions, contact: [email protected]
Document Number: 94166
2 Revision: 12-Mar-10
Page 3
VS-20L15TSPbF
1000
100
10
- Instantaneous
F
I
Forward Current (A)
1
0.2 0.6 1.2
VFM - Forward Voltage Drop (V)
T
= 125 °C
J
= 75 °C
T
J
T
= 25 °C
J
1.0
Schottky Rectifier, 20 A
- Reverse Current (mA)
R
I
1.6
1.40.80.40
1000
100
10
0.1
Vishay High Power Products
T
= 100 °C
J
= 75 °C
T
J
T
= 50 °C
J
T
= 25 °C
J
1
391260
VR - Reverse Voltage (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
10 000
15
TJ = 25 °C
1000
- Junction Capacitance (pF)
T
C
100
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
10
1
D = 0.75
D = 0.50
0.1
- Thermal Impedance (°C/W)
thJC
Z
0.01
(themal resistance)
Single pulse
D = 0.33
D = 0.25
D = 0.20
0.00001 0.0001 0.001 0.01 0.1 10 1
t1 - Rectangular Pulse Duration (s)
Fig. 4 - Maximum Thermal Impedance Z
15 201050
Characteristics
thJC
P
DM
Notes:
1. Duty factor D = t
2. Peak TJ = PDM x Z
1/t2
t
1
thJC
t
2
+ T
C
100
Document Number: 94166 For technical questions, contact: [email protected]
www.vishay.com
Revision: 12-Mar-10 3
Page 4
VS-20L15TSPbF
Vishay High Power Products
100
95
90
Square wave (D = 0.50)
85
80
75
Allowable Case Temperature (°C)
See note (1)
70
412 241680
I
- Average Forward Current (A)
F(AV)
20
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
1000
Schottky Rectifier, 20 A
14
12
10
8
6
4
Average Power Loss (W)
2
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS limit
DC
515 302010025
I
- Average Forward Current (A)
F(AV)
Fig. 6 - Forward Power Loss Characteristics
Note
(1)
Formula used: TC = TJ - (Pd + Pd
Pd = Forward power loss = I
Pd
= Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated V
REV
At any rated load condition
and with rated V
following surge
- Non-Repetitive Surge Current (A)
100
FSM
I
10
t
- Square Wave Pulse Duration (µs)
p
Fig. 7 - Maximum Non-Repetitive Surge Current
D.U.T.
Current
monitor
Fig. 8 - Unclamped Inductive Test Circuit
) x R
x VFM at (I
F(AV)
REV
;
thJC
/D) (see fig. 6);
F(AV)
100
L
IRFP460
R
= 25 Ω
g
RRM
applied
1000
R
High-speed
switch
Freewheel
diode
40HFL40S02
10 000
V
= 25 V
d
+
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Document Number: 94166
4 Revision: 12-Mar-10
Page 5
VS-20L15TSPbF
ORDERING INFORMATION TABLE
Device code
VS- 20 L 15 T S TRL PbF
1 - HPP product suffix
2 - Current rating (20 A)
3
- L = Low V
4 - Voltage rating (15 = 15 V)
5 - T = Schottky series
- S = D
6
-
7
8
- PbF = Lead (Pb)-free
Schottky Rectifier, 20 A
324
F
2
PAK
None = Tube (50 pieces)
TRL = Tape and reel (left oriented)
TRR = Tape and reel (right oriented)
51
678
Vishay High Power Products
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95014
Part marking information www.vishay.com/doc?95008
Packaging information www.vishay.com/doc?95032
www.vishay.com
Page 6
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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