RFG45N06 Datasheet, PDF (5/6 Pages) Fairchild Semiconductor – 45A, 60V, Avalanche Rated N-Channel Enhancement-Mode Power MOSFETs

RFG45N06, RFP45N06, RF1S45N06, RF1S45N06SM
Typical Performance Curves (Continued)
300
100
STARTING T_J = +25^oC
10
STARTING T_J = +150^oC
If R = 0
t_AV = (L) (I_AS) / (1.3 RATED BV_DSS - V_DD)
If R ≠ 0
1 ^{tAV = (L/R) ln [(IAS*R) / (1.3 RATED BVDSS - VDD) + 1]}
0.01
0.1
1
10
t_AV, TIME IN AVALANCHE (ms)
FIGURE 13. UNCLAMPED INDUCTIVE SWITCHING
Test Circuits and Waveforms
t_P
I_AS
BV_DSS
V_DS
V_DD
t_AV
FIGURE 14. UNCLAMPED ENERGY WAVEFORMS
VARY t_P TO OBTAIN
R_G
REQUIRED PEAK I_AS
V_GS
V_DS
L
DUT
+
V_DD
-
0V
t_P
I_L
0.01Ω
FIGURE 15. UNCLAMPED ENERGY TEST CIRCUIT
V_DS
t_ON
t_D(ON)
t_R
90%
10%
V_GS
10%
50%
PULSE WIDTH
t_OFF
t_D(OFF)
t_F
90%
10%
90%
50%
FIGURE 16. RESISTIVE SWITCHING WAVEFORMS
V_GS
0V
R_GS
V_DD
R_L
V_DS
DUT
FIGURE 17. RESISTIVE SWITCHING TEST CIRCUIT
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