Datasheet

©2008 Fairchild Semiconductor Corporation FDD8880 Rev. B3
FDD8880
Typical Characteristics T
C
= 25°C unless otherwise noted
Figure 1. Normalized Power Dissipation vs Case
Temperature
Figure 2. Maximum Continuous Drain Current vs
Case Temperature
Figure 3. Normalized Maximum Transient Thermal Impedance
Figure 4. Peak Current Capability
T
C
, CASE TEMPERATURE (
o
C)
POWER DISSIPATION MULTIPLIER
0
0 25 50 75 100 175
0.2
0.4
0.6
0.8
1.0
1.2
125
150
0
10
20
30
40
50
60
25 50 75 100 125 150 175
I
D
, DRAIN CURRENT (A)
T
C
, CASE TEMPERATURE (
o
C)
CURRENT LIMITED
BY PACKAGE
V
GS
= 4.5V
V
GS
= 10V
0.1
1
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
0.01
2
t, RECTANGULAR PULSE DURATION (s)
Z
θJC
, NORMALIZED
THERMAL IMPEDANCE
NOTES:
DUTY FACTOR: D = t
1
/t
2
PEAK T
J
= P
DM
x Z
θJC
x R
θJC
+ T
C
P
DM
t
1
t
2
0.5
0.2
0.1
0.05
0.01
0.02
DUTY CYCLE - DESCENDING ORDER
SINGLE PULSE
100
30
500
I
DM
, PEAK CURRENT (A)
t, PULSE WIDTH (s)
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
T
C
= 25
o
C
I = I
25
175 - T
C
150
FOR TEMPERATURES
ABOVE 25
o
C DERATE PEAK
CURRENT AS FOLLOWS:
TRANSCONDUCTANCE
MAY LIMIT CURRENT
IN THIS REGION
V
GS
= 4.5V
V
GS
= 10V