FQD45N03L データシートの表示（PDF） - Fairchild Semiconductor
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FQD45N03L Datasheet PDF : 11 Pages
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Typical Characteristic (Continued) TC = 25°C unless otherwise noted
2000
1000
CISS = CGS + CGD
COSS ≅ CDS + CGD
CRSS = CGD
100
VGS = 0V, f = 1MHz
40
0.1
1
10
30
VDS, DRAIN TO SOURCE VOLTAGE (V)
Figure 11. Capacitance vs Drain To Source
Voltage
10
VDD = 15V
8
6
4
WAVEFORMS IN
2
DESCENDING ORDER:
ID = 20A
ID = 10A
0
0
5
10
15
20
Qg, GATE CHARGE (nC)
Figure 12. Gate Charge Waveforms For Constant
Gate Current
100
VGS = 4.5V, VDD = 15V, ID = 8A
80
60
40
20
tr
tf
td(OFF)
td(ON)
0
0
10
20
30
40
50
RGS, GATE TO SOURCE RESISTANCE (Ω)
Figure 13. Switching Time vs Gate Resistance
Test Circuits and Waveforms
150
VGS = 10V, VDD = 15V, ID = 8A
100
td(OFF)
tf
50
tr
td(ON)
0
0
10
20
30
40
50
RGS, GATE TO SOURCE RESISTANCE (Ω)
Figure 14. Switching Time vs Gate Resistance
VARY tP TO OBTAIN
REQUIRED PEAK IAS
RG
VGS
tP
0V
VDS
L
DUT
+
VDD
-
IAS
0.01Ω
Figure 15. Unclamped Energy Test Circuit
©2004 Fairchild Semiconductor Corporation
tP
IAS
BVDSS
VDS
VDD
0
tAV
Figure 16. Unclamped Energy Waveforms
FQD45N03L Rev. B1
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