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FFAF40UP20DN Ultrafast Recovery Power Rectifier
February 2006
FFAF40UP20DN
Ultrafast Recovery Power Rectifier
Features
• Ultrafast with Soft Recovery : < 45ns (@I
F
= 20A)
• High Reverse Voltage : V
RRM
= 200V
• Avalanche Energy Rated
• Planar Construction
Applications
• Output Rectifiers
• Switching Mode Power Supply
• Free-wheeling diode for motor application
• Power switching circuits
1
1
2
3
TO-3PF
1.Anode 2.Cathode 3.Anode
1. Anode 2. Cathode 3. Anode
Absolute Maximum Ratings
Symbol
V
RRM
V
RWM
V
R
I
F(AV)
I
FSM
T
J,
T
STG
(per diode) T
C
= 25°C unless otherwise noted
Parameter
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Average Rectified Forward Current
Non-repetitive Peak Surge Current
60Hz Single Half-Sine Wave
Operating Junction and Storage Temperature
@ T
C
= 110°C
Value
200
200
200
20
200
- 65 to +150
Units
V
V
V
A
A
°C
Thermal Characteristics
Symbol
R
θJC
Parameter
Maximum Thermal Resistance, Junction to Case
Max
2.2
Units
°C/W
Package Marking and Ordering Information
Device Marking
F40UP20DN
Device
FFAF40UP20DNTU
Package
TO-3PF
Reel Size
-
Tape Width
-
Quantity
30
©2005 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FFAF40UP20DN Rev. A
FFAF40UP20DN Ultrafast Recovery Power Rectifier
Electrical Characteristics
Symbol
V
FM
I
RM
t
rr
t
a
t
b
Q
rr
W
AVL
*
(per diode) T
C
= 25°C unless otherwise noted
Parameter
I
F
= 20A
I
F
= 20A
V
R
= 200V
V
R
= 200V
I
F
=1A, di/dt = 100A/µs, V
CC
= 30V
I
F
=20A, di/dt = 200A/µs, V
CC
= 130V
I
F
=20A, di/dt = 200A/µs, V
CC
= 130V
T
C
= 25
°C
T
C
= 100
°C
T
C
= 25
°C
T
C
= 100
°C
T
C
= 25
°C
T
C
= 25
°C
T
C
= 25
°C
T
C
= 25
°C
T
C
= 25
°C
Min.
-
-
-
-
-
-
-
-
-
20
Typ.
-
-
-
-
-
-
11
13
21
-
Max.
1.15
1.0
100
500
35
45
-
-
-
-
Units
V
V
µA
µA
ns
ns
ns
ns
nC
mJ
*
Avalanche Energy (L = 40mH)
* Pulse Test: Pulse Width=300µs, Duty Cycle=2%
Test Circuit and Waveforms
FFAF40UP20DN Rev. A
2
www.fairchildsemi.com
FFAF40UP20DN Ultrafast Recovery Power Rectifier
Typical Performance Characteristics
Figure 1. Typical Forward Voltage Drop
100
Figure 2. Typical Reverse Current
10
FORWARD CURRENT, I
F
[A]
REVERSE CURRENT, I
R
[A]
T
C
= 75 C
10
o
1
T
C
= 125 C
o
o
T
C
= 125 C
o
o
T
C
= 100 C
0.1
T
C
= 25 C
1
T
C
= 75 C
0.01
o
T
C
= 25 C
o
0.1
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1E-3
0
50
100
150
200
FORWARD VOLTAGE, V
F
[V]
REVERSE VOLTAGE, V
R
[V]
Figure 3. Typical Junction Capacitance
400
350
300
250
200
150
100
50
0
0.1
Figure 4. Typical Reverse Recovery Time
52
REVERSE RECOVERY TIME, trr [ns]
JUNCTION CAPACITANCE, C
J
[pF]
f = 1MHz
48
44
40
36
32
28
24
20
100
I
F
= 20A
T
C
= 125 C
o
T
C
= 75 C
o
T
C
= 25 C
o
1
10
100
200
300
400
500
REVERSE VOLTAGE, V
R
[V]
di/dt [A/
µ
s]
Figure 5. Typical Reverse Recovery Current
REVERSE RECOVERY CURRENT, Irr [A]
12
Figure 6. Forward Current Deration Curve
AVERAGE FORWARD CURRENT, I
F(AV)
[A]
30
I
F
= 20A
10
25
8
20
T
C
= 125 C
6
o
DC
15
T
C
= 75 C
4
o
10
2
T
C
= 25 C
o
5
0
100
200
300
400
500
0
100
110
120
130
o
140
150
di/dt [A/
µ
s]
CASE TEMPERATURE, T
C
[ C]
FFAF40UP20DN Rev. A
3
www.fairchildsemi.com
Package Demensions
FFAF40UP20DN Ultrafast Recovery Power Rectifier
TO-3PF
5.50
±0.20
4.50
±0.20
15.50
±0.20
ø3.60
±0.20
3.00
±0.20
(1.50)
10.00
±0.20
10
°
26.50
±0.20
23.00
±0.20
16.50
±0.20
14.50
±0.20
0.85
±0.03
16.50
±0.20
2.00
±0.20
14.80
±0.20
2.00
±0.20
2.00
±0.20
4.00
±0.20
0.75
–0.10
+0.20
2.00
±0.20
2.50
±0.20
2.00
±0.20
3.30
±0.20
5.45TYP
[5.45
±0.30
]
5.45TYP
[5.45
±0.30
]
0.90
–0.10
+0.20
3.30
±0.20
2.00
±0.20
5.50
±0.20
1.50
±0.20
Dimensions in Millimeters
©
Ultrafast Recovery Power Rectifier
22.00
±0.20
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