irf7478qpbf International Rectifier Corp., irf7478qpbf Datasheet - Page 6

• Manufacturer Part Number: irf7478qpbf
• Description: 60v Single N-channel Hexfet Power Mosfet In A So-8 Package
• Manufacturer: International Rectifier Corp.

IRF7478QPbF
I
AS
12V
Fig 15a&b. Unclamped Inductive Test circuit
6
V
Fig 14a&b. Basic Gate Charge Test Circuit
GS
0.028
0.026
0.024
0.022
0.020
0.018
0.016
Same Type as D.U.T.
Fig 12. On-Resistance Vs. Drain Current
Current Regulator
.2µF
50KΩ
3mA
t p
Current Sampling Resistors
0
.3µF
I
G
V
(BR)DSS
10
D.U.T.
I
D
and Waveforms
and Waveform
V GS = 4.5V
I D , Drain Current (A)
+
-
V
DS
20
V
R G
GS
20V
V DS
30
t p
V
G
Q
I AS
V GS = 10V
GS
D.U.T
0.01 Ω
L
40
Charge
Q
Q
GD
G
50
15V
DRIVER
60
+
-
V DD
A
0.04
0.03
0.02
0.01
Fig 13. On-Resistance Vs. Gate Voltage
400
300
200
100
0
Fig 15c. Maximum Avalanche Energy
0.0
25
Starting T , Junction Temperature ( C)
2.0
V GS, Gate -to -Source Voltage (V)
50
4.0
Vs. Drain Current
J
6.0
75
8.0
I D = 7.0A
100
10.0
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TOP
BOTTOM
12.0
125
14.0
°
1.9A
3.4A
4.2A
I D
16.0
150