Typical Characteristics TA = 25°C unless otherwise noted
1.2
0.6
1.0
0.8
0.4
VGS = 10V
0.6
VGS = 4.5V
0.4
0.2
0.2
0
0
25
50
75
100
125
150
TA, AMBIENT TEMPERATURE (oC)
Figure 1. Normalized Power Dissipation vs
Ambient Temperature
0
25
50
75
100
125
150
TA, CASE TEMPERATURE (oC)
Figure 2. Maximum Continuous Drain Current vs
Case Temperature
2
1 DUTY CYCLE - DESCENDING ORDER
0.5
0.2
0.1
0.05
0.02
0.01
PDM
0.1
0.01
10-5
SINGLE PULSE
10-4
10-3
10-2
10-1
100
t, RECTANGULAR PULSE DURATION (s)
t1
t2
NOTES:
DUTY FACTOR: D = t1/t2
PEAK TJ = PDM x ZθJA x RθJA + TA
101
102
103
Figure 3. Normalized Maximum Transient Thermal Impedance
10
VGS = 4.5V
TRANSCONDUCTANCE
MAY LIMIT CURRENT
IN THIS REGION
TA = 25oC
FOR TEMPERATURES
ABOVE 25oC DERATE PEAK
CURRENT AS FOLLOWS:
I = I25
150 - TA
125
1
0.4
10-5
10-4
10-3
10-2
10-1
100
101
102
103
t, PULSE WIDTH (s)
Figure 4. Peak Current Capability
©2004 Fairchild Semiconductor Corporation
FDT461N Rev. A1