IRF6668 International Rectifier, IRF6668 Datasheet - Page 3

• Manufacturer Part Number: IRF6668
• Description: DirectFet Power MOSFET
• Manufacturer: International Rectifier

†
‡
Notes:
P
P
P
T
T
T
R
R
R
R
Absolute Maximum Ratings
Thermal Resistance
www.irf.com
P
J
STG
D
D
D
θJA
θJA
θJC
θJ-PCB
Surface mounted on 1 in. square Cu, steady state (still air).
Used double sided cooling,
@T
@T
@T
with small clip heatsink (still air).
A
A
C
= 25°C
= 70°C
= 25°C
0.001
0.01
0.1
10
Note †
1
1E-006
D = 0.50
Fig 1. Maximum Effective Transient Thermal Impedance, Junction-to-Case 
0.05
0.02
0.01
0.20
0.10
Power Dissipation
Power Dissipation
Power Dissipation
Peak Soldering Temperature
Operating Junction and
Storage Temperature Range
Junction-to-Ambient
Junction-to-Ambient
Junction-to-Case
Junction-to-PCB Mounted
SINGLE PULSE
( THERMAL RESPONSE )
1E-005
1 in. square Cu board
fj
f
ij
j
Parameter
Parameter
t 1 , Rectangular Pulse Duration (sec)
0.0001
Note †
ˆ
R
τ
J
τ
θ
J
τ
1
C i= τi/R i
is measured at
τ
1
C i= τi/R i
R
1
R
1
0.001
τ
2
R
τ
2
2
R
2
J
Typ.
12.5
R
–––
–––
τ
1.0
3
3
R
τ
3
3
Notes:
1. Duty Factor D = t1/t2
2. Peak Tj = P dm x Zthjc + Tc
τ
-40 to + 150
C
τ
C
Max.
Ri (°C/W)
270
2.8
1.8
89
0.3173
0.5283
0.5536
0.01
Max.
–––
–––
1.4
45
0.000048
0.000336
0.001469
Note ‡
τi (sec)
IRF6668
Units
Units
0.1
°C/W
°C
W
3