IRF440 International Rectifier, IRF440 Datasheet - Page 6

• Manufacturer Part Number: IRF440
• Description: N CHANNEL MOSFET, 500V, 8A TO-204AA
• Manufacturer: International Rectifier

Specifications of IRF440

• Transistor Polarity: N Channel
• Continuous Drain Current Id: 8A
• Drain Source Voltage Vds: 500V
• On Resistance Rds(on): 850mohm
• Rds(on) Test Voltage Vgs: 10V
• Threshold Voltage Vgs Typ: 4V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

IRF440
Fig 12a. Unclamped Inductive Test Circuit
Fig 12b. Unclamped Inductive Waveforms
6
Fig 13a. Basic Gate Charge Waveform
I
10V
A S
V
G
R G
20V
V
V D S
GS
Q
GS
t p
I A S
t p
D .U .T
0 .0 1
L
Charge
Q
Q
GD
G
V
(B R )D S S
1 5V
D R IV E R
+
-
V D D
A
Fig 12c. Maximum Avalanche Energy
12V
Fig 13b. Gate Charge Test Circuit
V
GS
Same Type as D.U.T.
Current Regulator
.2 F
Vs. Drain Current
50K
3mA
Current Sampling Resistors
.3 F
I
G
D.U.T.
www.irf.com
I
D
+
-
V
DS