Bulletin PD-20622 rev. A 08/03
A
STPS40L15CW
SCHOTTKY RECTIFIER
Major Ratings and Characteristics
Characteristics Value Units
I
Rectangular 40 A
F(AV)
waveform
V
RRM
I
@ tp = 5 µs sine 700 A
FSM
VF@ 19 Apk, TJ = 125°C 0.25 V
(per leg, Typical)
T
J
15.90 (0 .626 )
15.30 (0 .602 )
20.30 (0 .800 )
19.70 (0 .775 )
123
15 V
- 55 to 125 °C
3.65 (0 .14 4)
3. 55 ( 0 .1 3 9)
5.70 (0 .22 5)
5.30 (0.208)
5.50 (0.217)
4.50 (0 .17 7)
(2 PLCS.)
2 x 20 Amp s
Description/ Features
The STPS40L15CW center tap 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.
125°C TJ operation (VR < 5V)
Center tap module
Optimized for OR-ing applications
Ultra low 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
DIA.
5.30 (0 .20 9)
4.70 (0.185)
2.5 (0.098)
1.5 (0.059)
TO-247AC
123
NODE
12
BASE
COMMON
CATHODE
COMMON
CATHODE
2
ANODE
14. 80 ( 0.583)
14. 20 ( 0 . 559 )
1.40 (0 .05 6)
1.00 (0 .03 9)
10.94 ( 0.430)
10.86 (0 .427 )
4. 30 ( 0 .1 7 0)
3.70 (0 .14 5)
2. 20 ( 0 .0 8 7)
MAX.
2. 40 ( 0 .0 9 5)
MAX.
0.80 (0.032)
0.40 (0 .21 3)
Conform to JEDEC outline TO-247AC (TO-3P)
Dimensions in millimeters and inches
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1
STPS40L15CW
Bulletin PD-20622 rev. A 08/03
Voltage Ratings
Part number STPS40L15CW
VRMax. DC Reverse Voltage (V) @ TJ = 100 °C
V
Max. Working Peak Reverse Voltage (V) @ TJ = 100 °C
RWM
15
Absolute Maximum Ratings
Parameters Value Units Conditions
I
Max. Average Forward (Per Leg) 20 A 50% duty cycle @ TC = 86°C, rectangular wave form
F(AV)
Current * See Fig. 5 (Per Device) 40
I
Max. Peak One Cycle Non-Repetitive 700 5µs Sine or 3µs Rect. pulse
FSM
Surge Current (Per Leg) * See Fig. 7 330 10ms Sine or 6ms Rect. pulse
EASNon-Repetitive Avalanche Energy 10 mJ T
(Per Leg)
A
= 25 °C, I
J
= 2 Amps, L = 5 mH
AS
IARRepetitive Avalanche Current 2 A Current decaying linearly to zero in 1 µsec
(Per Leg) Frequency limited by TJ max. VA = 1.5 x VR typical
Following any rated
load condition and with
rated V
RRM
applied
Electrical Specifications
Parameters Value Units Conditions
Typ. Max.
VFMForward Voltage Drop 0.41 V @ 19A
(Per Leg) * See Fig. 1 (1) 0.52 V @ 40A
0.25 0.33 V @ 19A
0.37 0.50 V @ 40A
IRMReverse Leakage Current - 10 mA TJ = 25 °C
(Per Leg) * See Fig. 2 (1) - 600 mA TJ = 100 °C
V
Threshold Voltage 0.182 V T
F(TO)
J
= T
J
rtForward Slope Resistance 7.6 m Ω
CTMax. Junction Capacitance(Per Leg) - 2000 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance (Per Leg) 8 - nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10000 V/ µs
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated V
R
max.
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters Value Units Conditions
TJMax. Junction Temperature Range -55 to 125 °C
T
Max. Storage Temperature Range -55 to 150 °C
stg
R
Max. Thermal Resistance Junction 1.4 °C/W DC operation * See Fig. 4
thJC
to Case (Per Leg)
R
Max. Thermal Resistance Junction 0.7 °C/W DC operation
thJC
to Case (Per Package)
R
Typical Thermal Resistance, Case 0.24 °C/W Mounting surface , smooth and greased
thCS
to Heatsink
wt Approximate Weight 6 (0.21) g (oz.)
T Mounting Torque Min. 6 (5) Non-lubricated threads
Max. 12 (10)
Case Style TO-247AC (TO-3P) JEDEC
Kg-cm
(Ibf-in)
2
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STPS40L15CW
Bulletin PD-20622 rev. A 08/03
1000
1000
T = 100°C
J
100
R
10
75°C
50°C
25°C
1
100
F
Reverse Current - I (mA)
0.1
03691215
Reverse Vol tage - V (V)
R
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10000
T = 125°C
10
I nstan taneous Forward Current - I (A)
J
T = 75°C
J
T = 25°C
J
T
T = 25°C
J
1000
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Forward Voltage Drop - V (V)
FM
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10
thJC
D = 0.50
D = 0.33
D = 0.25
D = 0.20
D = 0.75
1
0.1
Single Pulse
Thermal Impedance Z (°C /W)
0.01
0.00001 0.0001 0.001 0.01 0.1 1 10 100
(Thermal Resistance)
t , Rectangular Pulse Duration (Seconds)
1
Fig. 4 - Maximum Thermal Impedance Z
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Ju nction Capacitance - C (pF)
100
0 5 10 15 20
Revers e Voltage - V (V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
P
DM
t
1
t
Notes :
1. Duty factor D = t / t
2. P eak T = P x Z + T
Characteristics
thJC
2
2
1
J
DM
thJC
C
R
3
STPS40L15CW
Bulletin PD-20622 rev. A 08/03
100
95
90
Square wave (D = 0.50)
85
80
75
Al lowabl e C ase Temperatur e - (°C)
70
0 5 10 15 20 25
Aver age Forward Current - I (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
FSM
F(A V)
14
D = 0.20
D = 0.25
12
D = 0.33
D = 0.50
10
D = 0.75
RMS Limit
8
6
4
Average P ower Loss - (Watts)
2
0
0 5 10 15 20 25 30
Aver age Forward Curr ent - I (A)
Fig. 6 - Forward Power Loss Characteristics
DC
F(AV )
At Any Rated Load Condi tion
And With R ated V Applied
F ollowing Surge
Non-R epetitive Surge Current - I (A)
100
10 100 1000 10000
Square Wave Puls e Duration - t (micr osec)
RRM
p
Fig. 7 - Maximum Non-Repetitive Surge Current
L
HIGH -S PE E D
SWITCH
FREE-WHEEL
DIODE
40HF L 4 0S02
Vd = 25 Volt
+
CURRENT
MONITOR
DUT
IR FP 460
Rg = 25 o hm
Fig. 8 - Unclamped Inductive Test Circuit
4
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STPS40L15CW
Bulletin PD-20622 rev. A 08/03
This product has been designed and qualified for Industrial Level.
Data and specifications subject to change without notice.
Qualification Standards can be found on IR's Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 08/03
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