ao4448 Alpha & Omega Semiconductor, ao4448 Datasheet - Page 5

• Manufacturer Part Number: ao4448
• Description: 80v N-channel Mosfet Sdmos Tm
• Manufacturer: Alpha & Omega Semiconductor

Rev 1: Nov. 2010
TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS
100
0.001
140
130
120
110
100
80
60
40
20
0.01
90
80
70
60
Figure 13: Diode Reverse Recovery Charge and Peak
0
0.1
10
0.00001
1
Figure 15: Diode Reverse Recovery Charge and
0
0
I
di/dt=800A/ s
Q
rm
I
I
s
rm
rr
Q
=20A
rr
D=T
T
R
200
5
Current vs. Conduction Current
J,PK
JA
=75° C/W
on
=T
Peak Current vs. di/dt
0.0001
/T
25ºC
A
10
+P
125ºC
400
125ºC
DM
di/dt (A/ s)
125ºC
.Z
I
Figure 12: Normalized Maximum Transient Thermal Impedance (Note F)
S
JA
15
(A)
.R
Single Pulse
600
25ºC
JA
0.001
20
125ºC
800
25ºC
In descending order
D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse
25
25ºC
0.01
www.aosmd.com
1000
30
14
12
10
8
6
4
2
12
10
8
6
4
2
0
Pulse Width (s)
0.1
35
30
25
20
15
10
25
20
15
10
5
0
5
0
0
0
40
Figure 16: Diode Reverse Recovery Time and
Figure 14: Diode Reverse Recovery Time and
di/dt=800A/ s
t
S
rr
Softness Factor vs. Conduction Current
1
200
5
25ºC
Softness Factor vs. di/dt
P
125ºC
125ºC
D
10
25ºC
400
T
on
di/dt (A/ s)
10
I
S
T
15
(A)
600
125ºC
25ºC
25ºC
125ºC
20
100
800
I
25
s
t
=20A
rr
S
1000
Page 5 of 6
1000
AO4448
30
2.5
2
1.5
1
0.5
0
3
2.5
2
1.5
1
0.5
0