Datasheet
IRLR/U7807ZPbF
6 www.irf.com
D.U.T.
V
D
S
I
D
I
G
3mA
V
GS
.3µF
50KΩ
.2µF
12V
Current Regulator
Same Type as D.U.T.
Current Sampling Resistors
+
-
Fig 13. Gate Charge Test Circuit
Fig 12b. Unclamped Inductive Waveforms
Fig 12a. Unclamped Inductive Test Circuit
t
p
V
(BR)DSS
I
AS
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
R
G
I
AS
0.01
Ω
t
p
D.U.T
L
V
DS
+
-
V
DD
DRIVER
A
15V
20V
V
GS
25 50 75 100 125 150 175
Starting T
J
, Junction Temperature (°C)
0
20
40
60
80
100
120
E
A
S
,
S
i
n
g
l
e
P
u
l
s
e
A
v
a
l
a
n
c
h
e
E
n
e
r
g
y
(
m
J
)
I
D
TOP 3.0A
1.4A
BOTTOM 12A
Fig 14a. Switching Time Test Circuit
Fig 14b. Switching Time Waveforms
V
GS
V
DS
9
0%
10%
t
d(on)
t
d(off)
t
r
t
f
V
GS
Pulse Width < 1µs
Duty Factor < 0.1%
V
DD
V
DS
L
D
D.U.T
+
-










