IRF840APBF Datasheet, PDF (6/8 Pages) International Rectifier – SMPS MOSFET

IRF840APbF
15V
VDS
L
DRIVER
RG
20V
tp
D.U.T
I_AS
0.01Ω
+
- ^VDD
A
Fig 12a. Unclamped Inductive Test Circuit
V_(BR)DSS
tp
I_AS
Fig 12b. Unclamped Inductive Waveforms
Q_G
10 V
Q_GS
Q_GD
V_G
Charge
Fig 13a. Basic Gate Charge Waveform
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
D.U.T.
+
-V^DS
V_GS
3mA
I_G
I_D
Current Sampling Resistors
Fig 13b. Gate Charge Test Circuit
6
1200
1000
800
ID
TOP
3.6A
5.1A
BOTTOM 8.0A
600
400
200
0
25
50
75
100
125
150
Starting T_J , Junction Temperature ( ^°C)
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
600
580
560
540
520
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
IAV , Avalanche Current ( A)
Fig 12d. Typical Drain-to-Source Voltage
Vs. Avalanche Current
www.irf.com