Bulletin PD-20874 rev. A 02/07
STPS40L15CTPbF
SCHOTTKY RECTIFIER
2 x 20 Amps
IF(AV) = 40Amp
VR = 15V
Major Ratings and Characteristics
Description/ Features
Characteristics
Values
Units
IF(AV) Rectangular
40
A
VRRM
15
V
IFSM @ tp = 5 μs sine
700
A
VF
0.25
V
waveform
@ 19 Apk, TJ=125°C
(per leg, Typical)
TJ
The 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
- 55 to 125
°C
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Lead-Free ("PbF" suffix)
Case Styles
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
Anode
TO-220
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1
STPS40L15CTPbF
Bulletin PD-20874 rev. A 02/07
Voltage Ratings
Part number
VR
Values
Max. DC Reverse Voltage (V)
@ TJ = 100 °C
15
VRWM Max. Working Peak Reverse Voltage (V) @ TJ = 100 °C
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward
Current
IFSM
* See Fig. 5
Values
Units
20
A
(Per Leg)
(Per Device)
Conditions
50% duty cycle @ TC = 85°C, rectangular wave form
40
Max. Peak One Cycle Non-Repetitive
700
A
Surge Current (Per Leg) * See Fig. 7
330
EAS
Non-Repetitive Avalanche Energy
(Per Leg)
10
mJ
IAR
Repetitive Avalanche Current
(Per Leg)
2
A
Values
Units
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied
5μs Sine or 3μs Rect. pulse
TJ = 25 °C, IAS = 2 Amps, L = 6 mH
Current decaying linearly to zero in 1 μsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
Conditions
Typ. Max.
VFM
IRM
Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
VF(TO) Threshold Voltage
0.25
0.37
0.41
0.52
0.33
0.50
V
V
V
V
@ 19A
@ 40A
@ 19A
@ 40A
-
10
mA
TJ = 25 °C
-
600
mA
TJ = 100 °C
0.182
V
TJ = TJ max.
7.6
mΩ
TJ = 25 °C
TJ = 125 °C
VR = rated VR
rt
Forward Slope Resistance
CT
Max. Junction Capacitance (Per Leg)
-
2000
pF
VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LS
Typical Series Inductance (Per Leg)
8
-
nH
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
(Rated VR)
10000
V/ μs
(1) Pulse Width < 300μs, Duty Cycle <2%
Thermal-Mechanical Specifications
Values
Units
TJ
Parameters
Max. Junction Temperature Range
-55 to 125
°C
Tstg
Max. Storage Temperature Range
-55 to 150
°C
RthJC Max. Thermal Resistance
Junction to Case
(Per Leg)
RthCS Typical Thermal Resistance
Case to Heatsink
RthJA Max. Thermal Resistance
Junction to Ambient
wt
Approximate Weight
T
Mounting Torque
2
0.50
40
2 (0.07)
Min.
Max.
Marking Device
1.5
6 (5)
12 (10)
Conditions
°C/W DC operation
* See Fig. 4
°C/W Mounting surface , smooth and greased
Only for TO-220
°C/W DC operation
For D2Pak and TO-262
g (oz.)
Kg-cm Non-lubricated threads
(Ibf-in)
STPS40L15CT
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STPS40L15CTPbF
Bulletin PD-20874 rev. A 02/07
Reverse Current - I R (mA)
1000
100
TJ = 100°C
100
75°C
50°C
10
25°C
1
0.1
0
3
6
9
12
15
Reverse Voltage - V R (V)
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10000
TJ = 125°C
10
Junction Capacitance - C T (pF)
Instantaneous Forward Current - IF (A)
1000
TJ = 75°C
TJ = 25°C
1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
TJ = 25°C
1000
100
1.6
0
5
10
15
Forward Voltage Drop - V FM (V)
Reverse Voltage - VR (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
20
Thermal Impedanc e Z thJC (°C/W)
10
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
PDM
t
0.1
Single Pulse
(Thermal Resistanc e)
0.01
0.00001
0.0001
0.001
0.01
Notes:
1
t2
1. Duty fac tor D = t 1/ t 2
2. Peak TJ = PDM x Z thJC+ TC
0.1
1
10
100
t 1 , Rectangular Pulse Duration (Sec onds)
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
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3
STPS40L15CTPbF
100
14
95
12
Average Power Loss - (Watts)
Allowa ble Case Temperature - (°C)
Bulletin PD-20874 rev. A 02/07
90
85
Square wave (D = 0.50)
80
75
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
RMSLimit
8
DC
6
4
2
see note ( 2)
70
0
4
8
12
16
20
0
24
0
Average Forward Current - I F(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Non-Repetitive Surge Current - I FSM (A)
5
10
15
20
25
30
Average Forward Current - I F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
1000
At Any Rated Load Condition
And With Rated VRRM Ap plied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
IRFP460
DUT
Rg = 25 ohm
CURRENT
MONITOR
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
+
Vd = 25 Volt
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = V R1 x IR (1 - D); IR @ VR1 = 80% rated VR
4
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STPS40L15CTPbF
Bulletin PD-20874 rev. A 02/07
Outline Table
Conform to JEDEC outline TO-220AB
Part Marking Information
IRXC Assembly Line - SubCon Assembly Line
EXAMPLE: THIS IS A STPS40L15CT
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
IN THE ASSEMBLY LINE "C"
IRMX Assembly Line
EXAMPLE: THIS IS A STPS40L15CT
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
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INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
PART NUMBER
DATE CODE
P = LEAD-FREE
YEAR 1 = 2001
WEEK 19
LINE C
PART NUMBER
DATE CODE
YEAR 1 = 2001
WEEK 19
P = LEAD-FREE
5
STPS40L15CTPbF
Bulletin PD-20874 rev. A 02/07
Ordering Information Table
Device Code
STPS
40
L
15
CT
PbF
1
2
3
4
5
6
1
-
Schottky STPS Series
2
-
Current Rating (40 = 40A)
3
-
L = Low Voltage Drop
4
-
Voltage Rating (15 = 15V)
5
-
CT = Essential Part Number
6
y none = Standard Production
y PbF = Lead-Free
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
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. 02/07
6
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