IRG4BC30F
www.irf.com 5
Fig. 10 - Typical Switching Losses vs.
Junction Temperature
Fig. 9 - Typical Switching Losses vs. Gate
Resistance
Fig. 8 - Typical Gate Charge vs.
Gate-to-Emitter Voltage
Fig. 7 - Typical Capacitance vs.
Collector-to-Emitter Voltage
0
400
800
1200
1600
2000
1 10 100
CE
C, Capacitance (pF)
V , Collector-to-Emitter Volta
e (V)
C
ies
C
res
C
oes
V
GE
= 0V f = 1 MHz
Cies = Cge + Cgc + Cce SHORTED
Cres = Cce
Coes = Cce + Cgc
0
4
8
12
16
20
0 102030405060
GE
V , Gate-to-Emitter Voltage (V)
Q , Total Gate Char
e (nC)
V = 400V
I = 17A
CE
C
1.30
1.35
1.40
1.45
1.50
0 102030405060
Total Switching Losses (mJ)
A
V = 480V
V = 15V
T = 25°C
I = 17A
R , Gate Resistance (
Ω
)
G
CC
GE
J
C
0.1
1
10
-60 -40 -20 0 20 40 60 80 100 120 140 160
Total Switching Losses (mJ)
T , Junction Temperature (°C)
J
R = 23
Ω
V = 15V
V = 480V
I = 8.5A
I = 17A
I = 34A
G
GE
CC
C
C
C