RFD3055 Datasheet, PDF (5/8 Pages) Intersil Corporation – 12A, 60V, 0.150 Ohm, N-Channel Power MOSFETs

RFD3055, RFD3055SM, RFP3055
Typical Performance Curves (Continued)
50
10
STARTING T_J = +150^oC
STARTING T_J = +25^oC
If R = 0
t_AV = (L) (I_AS) / (1.3RATED BV_DSS - V_DD)
IF R ≠ 0
t_AV = (L/R) ln [(I_AS*R) / (1.3 RATED BV_DSS - V_DD) + 1]
1
0.001
0.01
0.1
1
t_AV, TIME IN AVALANCHE (msec)
FIGURE 13. UNCLAMPED INDUCTIVE SWITCHING
Test Circuits
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
t_P
0V
V_DS
L
DUT
+
V_DD
-
I_L
0.01Ω
FIGURE 15. UNCLAMPED ENERGY TEST CIRCUIT
V_DS
t_ON
t_D(ON)
t_R
90%
t_OFF
t_D(OFF)
t_F
90%
10%
10%
V_GS
10%
50%
PULSE WIDTH
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
5