RHRG50100 Datasheet, PDF (3/3 Pages) Intersil Corporation – 50A, 1000V Hyperfast Diode

RHRG50100
Typical Performance Curves (Continued)
100
T_C = 25^oC, dI_F/dt = 100A/µs
80
t_rr
50
40
DC
60
30
t_a
SQ. WAVE
40
20
t_b
20
10
0
1
10
50
I_F, FORWARD CURRENT (A)
FIGURE 3. t_rr, t_a AND t_b CURVES vs FORWARD CURRENT
Test Circuits and Waveforms
V_GE AMPLITUDE AND
R_G CONTROL dI_F/dt
t_{1 AND} t₂ CONTROL I_F
L
V_GE
t₁
t₂
DUT CURRENT
R_G
SENSE
+
IGBT
- ^VDD
FIGURE 5. t_rr TEST CIRCUIT
I_MAX = 1.4A
L = 40mH
R < 0.1Ω
E_AVL = 1/2LI² [V_R(AVL)/(V_R(AVL) - V_DD)]
Q₁ = IGBT (BV_CES > DUT V_R(AVL))
L
CURRENT
SENSE
Q₁
DUT
R
+
V_DD
V_DD
-
FIGURE 7. AVALANCHE ENERGY TEST CIRCUIT
0
25
50
75
100
125
150
175
T_C, CASE TEMPERATURE (^oC)
FIGURE 4. CURRENT DERATING CURVE
dI_F
I_F
dt
0
t_rr
t_a
t_b
0.25 I_RM
I_RM
FIGURE 6. t_rr WAVEFORMS AND DEFINITIONS
V_AVL
I_L
I_L
IV
t₀
t₁
t₂
t
FIGURE 8. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
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