STK103
Ver 1.1
V(BR )DS S
tp
L
V
DS
D.U .T
R
+
-
G
DD
V
I
AS
20V
0.01
t
p
IAS
Unclamped Inductive Test Circuit
Figure 13a.
Unclamped Inductive Waveforms
Figure 13b.
100
D=0.5
0.2
0.1
10-1
10-2
10-3
0.05
0.02
0.01
P
DM
t1
t2
1. RɞJA (t)=r (t) * RɞJA
2. RɞJA=See Datasheet
Single Pulse
3. TJM-
T = P* RɞJA (t)
A
4. Duty Cycle, D=t1/t2
10-4
10-3
10-2
10-1
100
101
102
Square Wave Pulse Duration (msec)
Figure 14. Normalized Thermal Transient Impedance Curve
Jul,13,2011
www.samhop.com.tw
5