Bulletin PD-20568 rev. E 09/01
A
A
A
40L15CT
40L15CTS
40L15CT-1
SCHOTTKY RECTIFIER 2 x 20 Amps
Major Ratings and Characteristics Description/Features
The center tap Schottky rectifier module has been optimized for
Characteristics Values 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 V
- 55 to 125 °C
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
40L15CT
Base
Common
Cathode
2
2
1
Common
Cathode
node
TO-220AB
3
Anode
Case Styles
40L15CTS
Base
Common
Cathode
2
2
1
Common
Cathode
node
2
D
PAK
3
Anode
40L15CT-1
Base
Common
Cathode
2
2
1
Common
Cathode
node
TO-262
3
Anode
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40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
Voltage Ratings
Part number Values
VRMax. DC Reverse Voltage (V) @ TJ = 100 °C
V
Max. Working Peak Reverse Voltage (V) @ TJ = 100 °C
RWM
15
Absolute Maximum Ratings
Parameters Values Units Conditions
I
Max. Average Forward (Per Leg) 20 A 50% duty cycle @ TC = 85°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 = 6 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 Values 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
I
Reverse Leakage Current - 10 mA TJ = 25 °C
RM
(Per Leg) * See Fig. 2 (1) - 600 mA TJ = 100 °C
V
Threshold Voltage 0.182 V T
F(TO)
r
Forward Slope Resistance 7.6 mΩ
t
J
= T
J
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 10,000 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 Values Units Conditions
TJMax. Junction Temperature Range -55 to 125 °C
T
Max. Storage Temperature Range -55 to 150 °C
stg
R
Max. Thermal Resistance 1.5 °C/W DC operation * See Fig. 4
thJC
Junction to Case (Per Leg)
R
Typical Thermal Resistance 0.50 °C/W Mounting surface , smooth and greased
thCS
Case to Heatsink Only for TO-220
R
Max. Thermal Resistance 40 °C/W DC operation
thJA
Junction to Ambient For D2Pak and TO-262
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5) Non-lubricated threads
Max. 12 (10)
Kg-cm
(Ibf-in)
2
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1000
40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
1000
T = 100 C
J
100
R
75 C
100
F
T = 125 C
10
Instantaneous Forward Current - I (A)
1
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
Forward Vo lta ge Drop - V (V)
J
T = 75 C
J
T = 25 C
J
FM
Fig. 1 - Maximum Forward Voltage Drop Characteristics
10
10
50 C
25 C
1
Reverse Current - I (mA)
0.1
03691215
Reverse Voltage - V (V)
R
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
10000
T
T = 25 C
J
1000
Junction Capa citan ce - C (pF)
100
0 5 10 15 20
Reverse Voltage - V (V)
R
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Therm al Impedanc e Z ( C/W)
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thJC
D = 0.50
D = 0.33
D = 0.25
D = 0.20
0.1
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t / t
2. Pe ak T = P x Z + T
0.01
0.00001 0.0001 0.001 0.01 0.1 1 10 100
t , Rectangular Pu lse Duration (Seco nd s)
Fig. 4 - Maximum Thermal Impedance Z
1
thJC
P
DM
t
J
DM
Characteristics
1
t
2
1
thJC
D = 0.75
1
2
C
3
40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
100
95
90
85
Square wave (D = 0.50)
80
75
Allowable Case Temperature - ( C)
see note (2)
70
0 4 8 12 16 20 24
Averag e Forw a rd Curren t - I (A)
F(AV)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
FSM
14
D = 0.20
D = 0.25
12
D = 0.33
D = 0.50
10
D = 0.75
RMS Limit
8
6
4
Average Power Loss - (Watts)
2
0
0 5 10 15 20 25 30
Average Forward Current - I (A)
Fig. 6 - Forward Power Loss Characteristics
DC
F(AV)
DUT
CURRENT
MONITOR
(2) Formula used: TC = TJ - (Pd + Pd
Pd = Forward Power Loss = I
Pd
= Inverse Power Loss = VR1 x IR (1 - D); IR @ V
REV
F(AV)
4
At Any Rated Load Condition
An d W ith Rated V Applied
Fo llow in g Surge
Non-Repetitive Surge Current - I (A)
100
10 100 1000 10000
RRM
Square Wave Pulse Duration - t (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
IRFP460
Rg = 25 ohm
FREE-WHEEL
DIO D E
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
) x R
REV
x VFM @ (I
;
thJC
/ D) (see Fig. 6);
F(AV)
= 80% rated V
R1
R
p
HIGH-SPEED
SW ITCH
Vd = 25 Volt
+
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Outline Table
A
A
40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
15.24 (0.60)
14.84 (0.58)
14.09 (0.55)
13.47 (0.53)
4.57 (0.18)
4.32 (0.17)
Base
Common
Cathode
1.40 (0.05)
1.15 (0.04)
2
10.54 (0.41)
MAX.
3
1
2
3
1
2
15.49 (0.61)
14.73 (0.58)
1.40 (0.055)
3X
1.14 (0.045)
3.78 (0.15)
3.54 (0.14)
2.92 (0.11)
2.54 (0.10)
TERM 2
3.96 (0.16)
3.55 (0.14)
2.04 (0.080) MAX.
0.94 (0.04)
0.69 (0.03)
0.61 (0.02) MAX.
5.08 (0.20) REF.
10.16 (0.40)
REF.
93°
DIA.
2.61 (0.10)
2.32 (0.09)
8.89 (0.35)
REF.
0.93 (0.37)
2X
0.69 (0.27)
1.32 (0.05)
1.22 (0.05)
6.48 (0.25)
6.23 (0.24)
2°
0.10 (0.004)
2.89 (0.11)
2.64 (0.10)
Conform to JEDEC outline TO-220AB
Dimensions in millimeters and (inches)
4.69 (0.18)
4.20 (0.16)
1.32 (0.05)
6.47 (0.25)
6.18 (0.24)
MINIMUM RECOMMENDED FOOTPRINT
1.22 (0.05)
5.28 (0.21)
4.78 (0.19)
0.55 (0.02)
0.46 (0.02)
11.43 (0.45)
node
1
Base
Common
Cathode
Common
Cathode
2
2
3
Anode
node
13
2
1
Common
3
Cathode
Anode
2
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) M AX.
5.08 (0.20) REF.
8.89 (0.35)
3.81 (0.15)
2.08 (0.08)
2X
17.78 (0.70)
2.54 (0.10)
2X
Conform to JEDEC outline D2Pak (SMD-220)
Dimensions in millimeters and (inches)
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5
40L15CT, 40L15CTS, 40L15CT-1
A
Bulletin PD-20568 rev. E 09/01
Outline Table
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
Base
Common
Cathode
2
Marking Information
EXAMPLE: THIS IS A 40L15CTS
6
INTERNATIONAL
RECTIFIER LOGO
ASSEMBLY
LOT CODE
(K)
40L15CTS
9906
9G3A
(A)
DATE CODE (YYWW)
YY = YEAR
WW = WEEK
(A)
2
1
Common
Cathode
node
PART NUMBER
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3
Anode
Tape & Reel Information
TRR
FEED DIRECTION
TRL
FEED DIRECTION
1.8 5 (0 .073)
1.6 5 (0 .065)
10 .90 ( 0.429 )
10 .70 ( 0.421 )
4.10 (0.161)
3.90 (0.153)
1.60 (0.063)
1.50 (0.059)
40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
1.60 (0.063)
DIA.
1.50 (0.059)
11.60 ( 0.457)
11.40 ( 0.449)
1.75 (0.069)
1.25 (0.049)
16 .10 ( 0.634 )
15 .90 ( 0.626 )
15.42 (0.609)
15.22 (0.601)
DIA.
0.368 (0.014 5)
0.342 (0.013 5)
24 .30 (0 .957 )
23 .90 (0 .941 )
4.72 (0.18 6)
4.52 (0.17 8)
13.50 (0.5 32)
12.80 (0.5 04)
360 (14.173)
DIA. MAX.
Ordering Information Table
Device Code
DIA.
26.40 (1.0 39)
24.40 (0.9 61)
60 (2.36 2)
DIA. MIN.
Dimensions in millimeters and (inches)
40 L 15 C T - 1
1
2
3
1 - Current Rating: 40 = 40A
2 - L = Schottky L Series
3 - Voltage Rating: 15 = 15V
4 - C = Common Cathode
5 - T = TO-220
6 - -1 = TO-262 option
5
4
SMD-220 Tape & Reel
When ordering, indi cate the part
number, part orientation, and t he
quantity. Quantities are in multiples
of 8 00 p iece s pe r reel for b oth
TRL and TRR.
6
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7
40L15CT, 40L15CTS, 40L15CT-1
Bulletin PD-20568 rev. E 09/01
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
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. 09/01
8
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