IRFZ44N
N-CHANNEL Power MOSFET
!
Figure 6. Maximum Peak Current Capability
10000
FOR TEMPERATURES
ABOVE 25 oC DERATE PEAK
CURRENT AS FOLLOWS:
TRANSCONDUCTANCE
MAY LIMIT CURRENT IN
THIS REGION
1000
100
150 – T
C
----------------------
125
I = I
25
10
1
VGS = 10V
1E-6
10E-6
100E-6
1E-3
10E-3
100E-3
1E+0
10E+0
t , Pulse Width (s)
p
Figure 8. Unclamped Inductive Switching Capability
Figure 7. Typical Transfer Characteristics
40
35
30
25
20
15
10
5
1000
PULSE DURATION = 250 µs
DUTY CYCLE = 0.5% MAX
If Rz 0: t = (L/R) ln[(I ×R)/(1.3BV
If R= 0: t = (L×I )/(1.3BV -V )
AV AS DSS DD
-V )+1]
AV AS DSS DD
V
= 10 V
DS
R equals total Series resistance of Drain circuit
100
10
1
STARTING T = 25oC
J
STARTING T = 150oC
J
+175 oC
+25oC
-55oC
0
1.5
2.0
2.5
3.0
3.5
4.0
1E-6
10E-6
100E-6
1E-3
10E-3
100E-3
V
, Gate-to-Source Voltage ( )
V
t , Time in Avalanche (s)
AV
GS
Figure 10. Typical Drain-to-Source
vs Junction Temperature
Figure 9. Typical Drain-to-Source ON Resistance
vs Drain Current
Resistance
ON
2.5
50
PULSE DURATION = 10 µs
DUTY CYCLE = 0.5% MAX
T =25°C
C
2.0
1.5
40
30
20
10
1.0.
0.5
PULSE DURATION = 250 µs
DUTY CYCLE = 0.5% MAX
V
=10V
GS
V
= 10V, I = 15A
GS D
0
50
100
150
200
250
-75 -50 -25
0
25 50 75 100 125 150 175
o
I , Drain Current (A)
D
T , Junction Temperature (
J
)
C
Page 4
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