Bulletin PD-20724 rev. B 10/02
409DMQ... Series
SCHOTTKY RECTIFIER
400 Amp
TO-244AB
isolated doubler
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 200Apk, T
J
=125°C
(per leg)
range
135 to 150
25,500
0.72
V
A
V
Description/ Features
The 409DMQ Schottky rectifier doubler module series has
been optimized for low reverse leakage at high temperature.
The proprietary barrier technology allows for reliable operation
up to 175 °C junction temperature. Typical applications are in
high current switching power supplies, plating power supplies,
UPS systems, converters, free-wheeling diodes, welding, and
reverse battery protection.
175 °C T
J
operation
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
409DMQ... Units
400
A
- 55 to 175
°C
1
2
3
Modified JEDEC
Outline TO-244AB Isolated
Dimensions in millimeters and (inches)
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1
409DMQ... Series
Bulletin PD-20724 rev. B 10/02
Voltage Ratings
Parameters
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
409DMQ135
135
409DMQ150
150
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current ( Per Device )
I
FSM
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg)
E
AS
I
AR
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
20000
2300
15
1
A
mJ
A
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5µs Sine or 3µs Rect. pulse
T
J
= 25 °C, I
AS
= 1 Amps, L = 30 mH
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
409DMQ Units
400
A
Conditions
50% duty cycle @ T
C
= 80 °C, rectangular wave form
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg)
(1)
409DMQ Units
1.03
1.21
0.71
0.82
6
85
6000
5.0
10000
V
V
V
V
mA
mA
pF
nH
V/ µs
@ 200A
@ 400A
@ 200A
@ 400A
Conditions
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
C
T
L
S
Max. Reverse Leakage Current
(Per Leg)
(1)
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
T
J
= 25 °C
T
J
= 125 °C
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
From top of terminal hole to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle <2%
409DMQ Units
-55 to 175
-55 to 175
0.4
0.2
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
°C/W DC operation
°C/W DC operation
R
thCS
Typical Thermal Resistance, Case
0.1
°C/W Mounting surface , smooth and greased
to Heatsink
wt
Approximate Weight
79 (2.80) g (oz.)
T
Mounting Torque Base
Min.
24 (20)
Max.
35 (30)
Kg-cm
Mounting Torque Center Hole Typ.
13.5 (12)
(Ibf-in)
Terminal Torque
Min.
35 (30)
Max.
46 (40)
Case Style
TO - 244AB isolated doubler Modified JEDEC
2
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409DMQ... Series
Bulletin PD-20724 rev. B 10/02
1000
1000
100
Reverse Current - I
R
(mA)
T = 175˚C
J
150˚C
125˚C
100˚C
75˚C
10
1
0.1
50˚C
100
Instantaneous Forward Current - I
F
(A)
T
J
= 150˚C
T
J
= 125˚C
T
J
= 25˚C
0.01
0.001
25˚C
30
60
90
120
150
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
10000
Junction Capacitance - C
T
(pF)
0
10
T = 25˚C
J
1000
1
0
0.4
0.8
1.2
1.6
Forward Voltage Drop - V
FM
(V)
2
100
0
30
60
90
120
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 1 - Max. Forward Voltage Drop Characteristics
1
Thermal Impedance Z
thJC
(°C/W)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
0.1
P
DM
t1
0.01
Notes:
t2
Single Pulse
(Thermal Resistance)
1. Duty factor D = t1 / t 2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics
100
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3
409DMQ... Series
Bulletin PD-20724 rev. B 10/02
180
Allowable Case Temperature - (°C)
Average Power Loss - (Watts)
600
500
400
300
200
100
0
0
100
200
300
400
500
600
Average Forward Current - I
F
(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
DC
160
140
120
100
80
Square wave (D = 0.50)
Rated V applied
R
see note (2)
DC
60
40
0
200
400
600
Average Forward Current - I
F
(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
100000
Non-Repetitive Surge Current - I
FSM
(A)
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
10000
1000
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
+
DUT
IRFP460
Rg = 25 ohm
Vd = 25 Volt
CURRENT
MONITOR
Fig. 8 - Unclamped Inductive Test Circuit
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
4
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409DMQ... Series
Bulletin PD-20724 rev. B 10/02
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. 10/02
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