4
www.irf.com © 2013 International Rectifier
May 31, 2013
IRF6643TRPbF
Fig 8. Maximum Safe Operating Area
Fig 7. Typical Source-Drain Diode Forward Voltage
Fig 9. Maximum Drain Current vs. Ambient Temperature
Fig 10. Typical Threshold Voltage vs.
Junction Temperature
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
0.0 0.4 0.8 1.2 1.6 2.0
V
SD
, Source-to-Drain Voltage (V)
0.1
1
10
100
I
SD
, Reverse Drain Current (A)
V
GS
= 0V
T
J
= 150°C
T
J
= 25°C
T
J
= -40°C
0.1 1.0 10.0 100.0 1000.0
V
DS
, Drain-toSource Voltage (V)
0.1
1
10
100
1000
I
D
,
D
r
a
i
n
-
t
o
-
S
o
u
r
c
e
C
u
r
r
e
n
t
(
A
)
T
A
= 25°C
Tj = 150°C
Single Pulse
1msec
10msec
OPERATION IN THIS AREA
LIMITED BY R
DS
(on)
100µsec
25 50 75 100 125 150
T
J
, Ambient Temperature (°C)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
I
D
,
D
r
a
i
n
C
u
r
r
e
n
t
(
A
)
-75 -50 -25 0 25 50 75 100 125 150
T
J
, Temperature ( °C )
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V
G
S
(
t
h
)
G
a
t
e
t
h
r
e
s
h
o
l
d
V
o
l
t
a
g
e
(
V
)
I
D
= 250µA
I
D
= 150µA
1E-006 1E-005 0.0001 0.001 0.01 0.1 1 10 100
t
1
, Rectangular Pulse Duration (sec)
0.01
0.1
1
10
100
T
h
e
r
m
a
l
R
e
s
p
o
n
s
e
(
Z
t
h
J
A
)
0.20
0.10
D = 0.50
0.02
0.01
0.05
SINGLE PULSE
( THERMAL RESPONSE )
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = Pdm x Zthja + Ta
