IRF840A View Datasheet(PDF) - International Rectifier
Part Name
Description
View to exact match
IRF840A Datasheet PDF : 8 Pages
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IRF840A
15V
VDS
L
D R IV E R
RG
20V
tp
D .U .T
IA S
0 .0 1Ω
+
- VD D
A
Fig 12a. Unclamped Inductive Test Circuit
V (BR)DSS
tp
IAS
Fig 12b. Unclamped Inductive Waveforms
QG
10 V
QGS
QGD
VG
Charge
Fig 13a. Basic Gate Charge Waveform
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
D.U.T.
+
-VDS
VGS
3mA
IG
ID
Current Sampling Resistors
Fig 13b. Gate Charge Test Circuit
6
1200
1000
800
TOP
BOTTOM
ID
3.6A
5.1A
8.0A
600
400
200
0
25
50
75
100
125
150
Starting TJ , Junction Temperature ( °C)
Fig 12c. Maximum Avalanche Energy
Vs. Drain Current
600
610
600
580
590
580
560
570
560
540 550
540
0.0
1.0
2.0
3.0
4.0
5.0
6.0
520
0.0
1.0
2.0
IAV3.,0Aval4a.n0che
Current ( A)
5.0 6.0
7.0
8.0
IAV , Avalanche Current ( A)
Fig 12d. Typical Drain-to-Source Voltage
Vs. Avalanche Current
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