Reduced RFI and EMI
Reduced Snubbing
Extensive Characterization of
Recovery Parameters
Features
Description
HEXFRED
TM
diodes are optimized to reduce losses and EMI/RFI in high frequency
power conditioning systems. An extensive characterization of the recovery
behavior for different values of current, temperature and di/dt simplifies the
calculations of losses in the operating conditions. The softness of the recovery
eliminates the need for a snubber in most applications. These devices are ideally
suited for power converters, motors drives and other applications where
switching losses are significant portion of the total losses.
Ultrafast, Soft Recovery Diode
HEXFRED
TM
HFA320NJ40C
BASE COMMON CATHODE
LUG
TERMINAL
ANODE 1
LUG
TERMINAL
ANODE 2
PD -2.449 rev. B 02/99
V
R
= 400V
V
F
(typ.)
= 1V
I
F(AV)
= 320A
Q
rr
(typ.) = 420nC
I
RRM
(typ.)
= 8.7A
t
rr
(typ.)
= 45ns
di
(rec)M
/dt (typ.)
= 280A/µs
TO-244AB
Thermal - Mechanical Characteristics
Absolute Maximum Ratings (per Leg)
lbfin
(Nm)
°C/W
K/W
Parameter
Min.
Typ.
Max.
Units
R
thJC
Junction-to-Case, Single Leg Conducting
0.24
Junction-to-Case, Both Legs Conducting
0.12
R
thCS
Case-to-Sink, Flat, Greased Surface
0.10
Wt
Weight
79 (2.8)
g (oz)
Mounting Torque
30 (3.4)
40 (4.6)
Mounting Torque Center Hole
12 (1.4)
18 (2.1)
Terminal Torque
30 (3.4)
40 (4.6)
Vertical Pull
80
2 inch Lever Pull
35
Parameter
Max.
Units
V
R
Cathode-to-Anode Voltage
400
V
I
F
@ T
C
= 25°C
Continuous Forward Current
321
I
F
@ T
C
= 100°C
Continuous Forward Current
160
I
FSM
Single Pulse Forward Current
1200
E
AS
Non-Repetitive Avalanche Energy
1.4
mJ
P
D
@ T
C
= 25°C
Maximum Power Dissipation
625
P
D
@ T
C
= 100°C
Maximum Power Dissipation
250
T
J
Operating Junction and
T
STG
Storage Temperature Range
-55 to +150
W
A
C
lbfin
Note: Limited by junction temperature
Mounting surface must be smooth, flat, free or burrs or other
L = 100µH, duty cycle limited by max T
J
protrusions. Apply a thin even film or thermal grease to mounting
125°C
surface. Gradually tighten each mounting bolt in 5-10 lbfin steps
until desired or maximum torque limits are reached. Module
1
HFA320NJ40C
PD-2.449 rev. B 02/99
2
Parameter
Min. Typ. Max. Units
Test Conditions
V
BR
Cathode Anode Breakdown Voltage
400
V
I
R
= 100µA
V
FM
Max Forward Voltage
1.10 1.35
I
F
= 160A
1.30 1.55
V
I
F
= 320A
See Fig. 1
1.00 1.20
I
F
= 160A, T
J
= 125°C
I
RM
Max Reverse Leakage Current
2.0
12
µA
V
R
= V
R
Rated
3.0
16
mA
T
J
= 125°C, V
R
= 320V
C
T
Junction Capacitance
370 500
pF
V
R
= 200V
See Fig. 3
From top of terminal hole to mounting
plane
Electrical Characteristics (per Leg) @ T
J
= 25°C (unless otherwise specified)
Dynamic Recovery Characteristics (per Leg) @ T
J
= 25°C (unless otherwise specified)
A/µs
nC
A
L
S
Series Inductance
5.0
nH
See Fig. 2
Parameter
Min. Typ. Max. Units Test Conditions
t
rr
Reverse Recovery Time
45
I
F
= 1.0A, di
f
/dt = 200A/µs, V
R
= 30V
t
rr1
90
140
ns
T
J
= 25°C See Fig.
t
rr2
290 440
T
J
= 125°C 5
I
F
= 160A
I
RRM1
Peak Recovery Current
8.7
20
T
J
= 25°C See Fig.
I
RRM2
18
30
T
J
= 125°C 6
V
R
= 200V
Q
rr1
Reverse Recovery Charge
420 1100
T
J
= 25°C See Fig.
Q
rr2
2600 7000
T
J
= 125°C 7
di
f
/dt = 200A/µs
di
(rec)M
/dt1
Peak Rate of Fall of Recovery Current
300
T
J
= 25°C See Fig.
di
(rec)M
/dt2
During t
b
280
T
J
= 125°C 8
63.50 (2.500)
60.96 (2.400)
23.55 (0.927)
20.42 (0.804)
14.99 (0.590)
15.75 (0.620)
20.32 (0.800)
17.78 (0.700)
39.75 (1.565)
40.26 (1.585)
80.01 (3.150)
34.925 (1.375)
3.35 (0.132)
3.02 (0.119)
90.17 (3.550)
92.71 (3.650)
DIA.
7.49 (0.295)
6.99 (0.275)
(2 PLCS.)
10.41 (0.410)
9.65 (0.380)
DIA.
DIA.
4.70 (0.185)
4.95 (0.195)
1/4-20 SLOTTED HEX
REF.
Dimensions in Millimeters and (Inches)
CONFORMS TO JEDEC
OUTLINE TO-244AB
1
2
3
LEAD ASSIGNMENTS
1 - ANODE
2 - CATHODE
3 - ANODE
HFA320NJ40C
PD-2.449 rev. B 02/99
3
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics, (per Leg)
Fig. 2 - Typical Reverse Current vs. Reverse
Voltage, (per Leg)
Fig. 3 - Typical Junction Capacitance vs.
Reverse Voltage, (per Leg)
Fig. 1 - Maximum Forward Voltage Drop
vs. Instantaneous Forward Current,
(per Leg)
1
10
100
1000
0.4
0.8
1.2
1.6
2.0
FM
F
Insta
ntaneo
us For
w
ard
Current
- I (A)
Forward Voltage Drop - V (V)
T = 150°C
T = 125°C
T = 25°C
J
J
J
0.1
1
10
100
1000
10000
100000
0
100
200
300
400
R
R
Reverse Voltage - V (V)
T = 150°C
Reve
rse Curre
nt - I
(
µA)
T = 125°C
T = 25°C
J
J
J
100
1000
10000
1
10
100
1000
T = 25°C
J
Reverse Voltage - V (V)
R
T
Ju
nction
C
a
pacit
ance - C
(pF)
A
0.001
0.01
0.1
1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
1
th
J
C
t , Rectangular Pulse Duration (Seconds)
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Single Pulse
(Thermal Resistance)
T
h
e
r
m
a
l Im
p
e
d
a
n
c
e
-
Z
(
K
/W
)
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
J
DM
thJC
C
2
1
HFA320NJ40C
PD-2.449 rev. B 02/99
4
Fig. 7 - Typical Stored Charge vs. di
f
/dt,
(per Leg)
Fig. 8 - Typical di
(rec)M
/dt vs. di
f
/dt,
(per Leg)
Fig. 5 - Typical Reverse Recovery vs. di
f
/dt,
(per Leg)
Fig. 6 - Typical Recovery Current vs. di
f
/dt,
(per Leg)
0
100
200
300
400
500
100
1000
f
di /dt - (A/µs)
t
- (ns
)
rr
V = 200V
T = 125°C
T = 25°C
R
J
J
I = 200A
F
I = 70A
F
I = 160A
F
1
10
100
100
1000
f
di /dt - (A/µs)
I
- (A)
I
RRM
I = 70A
I = 200A
I = 160A
V = 200V
T = 125°C
T = 25°C
R
J
J
F
F
F
0
2000
4000
6000
100
1000
f
di /dt - (A/µs)
RR
Q
- (nC)
I = 70A
I = 200A
I = 160A
V = 200V
T = 125°C
T = 25°C
R
J
J
F
F
F
100
1000
10000
100
1000
f
di /dt - (A/µs)
di(rec)M/dt
- (A/
µs)
I = 160A
I = 70A
I = 200A
V = 200V
T = 125°C
T = 25°C
R
J
J
F
F
F
HFA320NJ40C
PD-2.449 rev. B 02/99
5
4. Q
rr
- Area under curve defined by t
rr
and I
RRM
t
rr
X I
RRM
Q
rr
=
2
5. di
(rec)M
/dt - Peak rate of change of
current during t
b
portion of t
rr
V
(AVAL)
R(RATED)
I
L(PK)
V
DECAY
TIME
Fig. 11 - Avalanche Test Circuit and Waveforms
Fig. 10 - Reverse Recovery Waveform and
Definitions
Fig. 9 - Reverse Recovery Parameter Test
Circuit
t
a
t
b
t
rr
Q
rr
I
F
I
RRM
I
RRM
0.5
di(rec)M/dt
0.75 I
RRM
5
4
3
2
0
1
di /dt
f
1. di
f
/dt - Rate of change of current
through zero crossing
2. I
RRM
- Peak reverse recovery current
3. trr - Reverse recovery time measured
from zero crossing point of negative
going I
F
to point where a line passing
through 0.75 I
RRM
and 0.50 I
RRM
extrapolated to zero current
REVERSE RECOVERY CIRCUIT
IRFP250
D.U.T.
L = 70µH
V = 200V
R
0.01
G
D
S
dif/dt
ADJUST
CURRENT
MONITOR
HIGH-SPEED
SWITCH
DUT
Rg = 25 ohm
+
FREE-WHEEL
DIODE
Vd = 50V
L = 100µH
http://www.irf.com Fax-On-Demand: +44 1883 733420 Data and specifications subject to change without notice.
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