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| RHRG75120 Datasheet, PDF (3/4 Pages) Fairchild Semiconductor – 75A, 1200V Hyperfast Diode | |||
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RHRG75120
Typical Performance Curves (Continued)
100
TC = 25oC, dIF/dt = 100A/µs
80
trr
60
ta
40
tb
20
0
1
10
80
IF, FORWARD CURRENT (A)
FIGURE 3. trr, ta AND tb CURVES vs FORWARD CURRENT
Test Circuits and Waveforms
VGE AMPLITUDE AND
RG CONTROL dIF/dt
t1 AND t2 CONTROL IF
L
VGE
t1
t2
DUT CURRENT
RG
SENSE
+
IGBT
- VDD
FIGURE 5. trr TEST CIRCUIT
IMAX = 1.6A
L = 40mH
R < 0.1â¦
EAVL = 1/2LI2 [VR(AVL)/(VR(AVL) - VDD)]
Q1 = IGBT (BVCES > DUT VR(AVL))
L
CURRENT
SENSE
Q1
DUT
R
+
VDD
VDD
-
FIGURE 7. AVALANCHE ENERGY TEST CIRCUIT
80
60
DC
40
SQ. WAVE
20
0
25
50
75
100
125
150
175
TC, CASE TEMPERATURE (oC)
FIGURE 4. CURRENT DERATING CURVE
dIF
IF
dt
0
trr
ta
tb
0.25 IRM
IRM
FIGURE 6. trr WAVEFORMS AND DEFINITIONS
VAVL
IL
IL
IV
t0
t1
t2
t
FIGURE 8. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
©2002 Fairchild Semiconductor Corporation
RHRG75120 Rev.
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