Datasheet

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5
©2009 Fairchild Semiconductor Corporation
FDD6796A / FDU6796A_F071 Rev.C1
FDD6796A / FDU679A_F071 N-Channel PowerTrench
®
MOSFET
Figure 13. Junction-to-Case Transient Thermal Response Curve
10
-5
10
-4
10
-3
10
-2
10
-1
1
0.01
0.1
1
SINGLE PULSE
R
θ JC
= 3.6
o
C/W
DUTY CYCLE-DESCENDING ORDER
NORMALIZED THERMAL
IMPEDANCE,
Z
θ
JC
t, RECTANGULAR PULSE DURATION (sec)
D = 0.5
0.2
0.1
0.05
0.02
0.01
2
P
DM
t
1
t
2
NOTES:
DUTY FACTOR: D = t
1
/t
2
PEAK T
J
= P
DM
x Z
θJC
x R
θJc
+ T
C
Figure 14.
10
-4
10
-3
10
-2
10
-1
110
100 1000
0.0005
0.001
0.01
0.1
1
SINGLE PULSE
R
θ JA
= 96
o
C/W
( Note 1b )
DUTY CYCLE-DESCENDING ORDER
NORMALIZED THERMAL
IMPEDANCE,
Z
θ
JA
t, RECTANGULAR PULSE DURATION (sec)
D = 0.5
0.2
0.1
0.05
0.02
0.01
2
P
DM
t
1
t
2
NOTES:
DUTY FACTOR: D = t
1
/t
2
PEAK T
J
= P
DM
x Z
θJA
x R
θJA
+ T
A
Junction-to-Ambient Transient Thermal Response Curve
Typical Characteristics T
J
= 25 °C unless otherwise noted