IRF7458 查看數據表（PDF） - International Rectifier
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IRF7458 Datasheet PDF : 8 Pages
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IRF7458
0.020
0.016
0.016
0.014
0.012
VGS = 6.0V
0.008
VGS = 10V
VGS = 16V
0.004
0
20 40 60 80 100 120
ID , Drain Current (A)
0.012
0.010
ID = 14A
0.008
0.006
4
6
8
10
12
14
16
VGS, Gate -to -Source Voltage (V)
Fig 12. On-Resistance Vs. Drain Current
Current Regulator
Same Type as D.U.T.
50KΩ
12V
.2µF
.3µF
VGS
3mA
D.U.T.
+
-VDS
VGS
QGS
VG
IG
ID
Current Sampling Resistors
QG
QGD
Charge
Fig 13a&b. Basic Gate Charge Test Circuit
and Waveform
Fig 13. On-Resistance Vs. Gate Voltage
800
ID
TOP
5.0A
9.0A
BOTTOM 11A
600
400
V (B R )D SS
tp
IAS
VDS
L
RG
20V
tp
D .U .T
IA S
0.01Ω
15V
DRIVE R
+
- VD D
A
Fig 14a&b. Unclamped Inductive Test circuit
and Waveforms
6
200
0
25
50
75
100
125
150
Starting TJ , Junction Temperature ( °C)
Fig 14c. Maximum Avalanche Energy
Vs. Drain Current
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