Datasheet

IRF2805PbF
www.irf.com 5
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig 9. Maximum Drain Current Vs.
Case Temperature
0.001
0.01
0.1
1
0.00001 0.0001 0.001 0.01 0.1
Note s:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1 2
J DM thJC C
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
Thermal Response (Z )
1
thJC
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
25 50 75 100 125 150 175
0
30
60
90
120
150
180
T , Case Temperature ( C)
I , Drain Current (A)
°
C
D
LIMITED BY PACKAGE
Fig 10. Normalized On-Resistance
Vs. Temperature
-60 -40 -20 0 20 40 60 80 100 120 140 160 180
0.0
0.5
1.0
1.5
2.0
2.5
3.0
T , Junction Temperature ( C)
R , Drain-to-Source On Resistance
(Normalized)
J
DS(on)
°
V =
I =
GS
D
10V
175A