IRFBC40, IRFBC42
Typical Performance Curves
20
GATE TO SOURCE VOLTAGE (V)
I
D
= 6.2A
FOR TEST CIRCUIT, SEE FIGURES 19, 20
16
V
DS
= 120V
12
V
DS
= 240V
V
DS
= 360V
8
Unless Otherwise Specified
(Continued)
4
0
0
12
24
36
48
60
Q
g(TOT),
TOTAL GATE CHARGE (nC)
FIGURE 14. GATE TO SOURCE VOLTAGE vs GATE CHARGE
Test Circuits and Waveforms
V
DS
L
t
P
VARY t
P
TO OBTAIN
REQUIRED PEAK I
AS
V
GS
DUT
t
P
0V
R
G
-
+
BV
DSS
V
DS
V
DD
I
AS
V
DD
I
AS
0.01Ω
0
t
AV
FIGURE 15. UNCLAMPED ENERGY TEST CIRCUIT
FIGURE 16. UNCLAMPED ENERGY WAVEFORMS
t
ON
t
d(ON)
t
r
R
L
V
DS
90%
t
OFF
t
d(OFF)
t
f
90%
+
R
G
DUT
-
V
DD
0
10%
90%
10%
V
GS
V
GS
0
10%
50%
PULSE WIDTH
50%
FIGURE 17. SWITCHING TIME TEST CIRCUIT
FIGURE 18. RESISTIVE SWITCHING WAVEFORMS
5-6