Datasheet

IRF7459
6 www.irf.com
Fig 14. On-Resistance Vs. Gate Voltage
Fig 12. On-Resistance Vs. Drain Current
Fig 13a&b. Basic Gate Charge Test Circuit
and Waveform
Fig 14a&b. Unclamped Inductive Test circuit
and Waveforms
Fig 14c. Maximum Avalanche Energy
Vs. Drain Current
D.U.T.
V
DS
I
D
I
G
3mA
V
GS
.3µF
50KΩ
.2µF
12V
Current Regulator
Same Type as D.U.T.
Current Sampling Resistors
+
-
V
GS
Q
G
Q
GS
Q
GD
V
G
Charge
t
p
V
(
BR
)
DSS
I
AS
R
G
I
AS
0.01
Ω
t
p
D.U.T
L
V
DS
+
-
V
DD
DRIVER
A
15V
20V
25 50 75 100 125 150
0
100
200
300
400
500
600
700
Starting T , Junction Temperature ( C)
E , Single Pulse Avalanche Energy (mJ)
J
AS
°
I
D
TOP
BOTTOM
4.3A
7.7A
9.6A
0 20406080100
I
D
, Drain Current (A)
0.007
0.008
0.009
0.010
R
DS (on)
, Drain-to-Source On Resistance (
Ω
)
V
GS
= 10V
V
GS
= 4.5V
2.0 2.5 3.0 3.5 4.0 4.5
V
GS,
Gate -to -Source Voltage (V)
0.006
0.008
0.010
0.012
0.014
0.016
0.018
0.020
R
DS(on)
, Drain-to -Source On Resistance (
Ω
)
I
D
= 12A