IRF840A Datasheet, PDF (5/8 Pages) International Rectifier – Power MOSFET(Vdss=500V, Rds(on)max=0.85ohm, Id=8.0A)

IRF840A
8.0
6.0
4.0
2.0
0.0
25
50
75
100
125
150
T_C , Case Temperature ( ^°C)
Fig 9. Maximum Drain Current Vs.
Case Temperature
10
V_DS
V_GS
R_G
R_D
D.U.T.
10V
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
+_{-V D D}
Fig 10a. Switching Time Test Circuit
V_DS
90%
10%
V_GS
t_d(on) t_r
t_d(off) t_f
Fig 10b. Switching Time Waveforms
1
D = 0.50
0.20
0.10
0.1
0.05
0.02
0.01
0.01
0.00001
P_DM
t₁
t₂
SINGLE PULSE
(THERMAL RESPONSE)
Notes:
1. Duty factor D = t₁ / t ₂
2. Peak T _J = P _DM x Z _thJC + T_C
0.0001
0.001
0.01
0.1
1
t₁, Rectangular Pulse Duration (sec)
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case
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