IRFD220 查看數據表（PDF） - Fairchild Semiconductor
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IRFD220 Datasheet PDF : 7 Pages
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IRFD220
Test Circuits and Waveforms (Continued)
RL
+
RG
VDD
-
DUT
VGS
FIGURE 16. SWITCHING TIME TEST CIRCUIT
VDS
tON
td(ON)
tr
90%
tOFF
td(OFF)
tf
90%
10%
0
VGS
10%
0
50%
PULSE WIDTH
10%
90%
50%
FIGURE 17. RESISTIVE SWITCHING WAVEFORMS
CURRENT
REGULATOR
VDS
(ISOLATED
SUPPLY)
12V
BATTERY
0.2µF 50kΩ
0.3µF
SAME TYPE
AS DUT
D
G
DUT
IG(REF)
0
S
VDS
IG CURRENT
ID CURRENT
SAMPLING
SAMPLING
RESISTOR
RESISTOR
FIGURE 18. GATE CHARGE TEST CIRCUIT
VDD
Qgs
0
Qg(TOT)
Qgd
VGS
VDS
IG(REF)
0
FIGURE 19. GATE CHARGE WAVEFORMS
©2002 Fairchild Semiconductor Corporation
IRFD220 Rev. B
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