FIGURE 3. trr, ta
AND t
b
CURVES vs FORW
ARD CURRENT
FIGURE 4.
CURRENT DERATING CURVE
Typical Performance Curves
(Continued)
IF, FORWARD CURRENT (A)
0
1
10
20
30
40
50
60
10 30
tb
trr
t, RECOVERY TIMES (ns)
ta
TC, CASE TEMPERATURE (oC)
I
F(AV)
, AVERAGE FORWARD CURRENT (A)
30
25
5
0
100 120 140 160 180
DC
10
15
20
SQ. WAVE
Test Circuits and Waveforms
FIGURE 5. trr
TEST CIRCUIT
FIGURE 6. trr
WA
VEFORMS AND DEFINITIONS
FIGURE 7.
AVALANCHE ENERGY TEST CIRCUIT
FIGURE 8. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
RG
L
-VDD
IGBT
CURRENT
SENSE
DUT
VGE
t1
t2
VGE
AMPLITUDE AND
t1 AND t2 CONTROL IF
RG
CONTROL dI
F/dt
+
dt
dIF
IF
trr
ta
tb
0
IRM
0.25 IRM
DUT
CURRENT
SENSE
+
LR
VDD
R < 0.1?
EAVL = 1/2LI2
[V
R(AVL)/(VR(AVL)
- V
DD)]
Q1 = IGBT (BVCES
> DUT V
R(AVL))
-
VDD
Q1
I = 1A
L = 40mH
IV
t0
t1
t2
IL
VAVL
t
IL
RURP3060
?2001 Fairchild Semiconductor Corporation
RURP3060 Rev. C1
www.fairchildsemi.com
3
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