2SK3069
Rev.11.00 Sep 07, 2005 page 5 of 7

Pulse Width PW (S)

Normalized Transient Thermal Impedance γs (t)

Normalized Transient Thermal Impedance vs. Pulse Width

Channel Temperature Tch (°C)

Repetitive Avalanche Energy E

AR

(mJ)

Maximum Avalanche Energy vs.

Channel Temperature Derating

Source to Drain Voltage V

SD

(V)

Reverse Drain Current I

DR

(A)

Reverse Drain Current vs.

Source to Drain Voltage

D. U. T
Rg
I
AP
Monitor
V
DS
Monitor
V
DD
50 Ω
Vin
15 V
0
ID
V
DS
I
AP
V
(BR)DSS
L
V
DD
E
AR
= • L • I
AP2
•
2
1V
DSS
V
DSS
– V
DD

Avalanche Test Circuit Avalanche Waveform

00.4 0.8 1.2 1.6 2.0
Pulse Test
V
GS
= 0, –5 V
5 V
10 V
100
80
60
40
20
250
200
150
100
50
25 50 75 100 125 150
0
I
AP = 50 A
V
DD = 25 V
duty < 0.1 %
Rg > 50 Ω
3
1
0.3
0.1
0.03
0.01
10 µ100 µ1 m 10 m 100 m 1 10
DM
P
PW
T
D = PW
T
ch – c(t) = s (t) • ch – c
ch – c = 1.25°C/W, Tc = 25°C
θ γ θ
θ
Tc = 25°C
D = 1
0.5
0.2
0.1
0.05
0.02
0.01
1shot pulse