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| FQPF3P20 Datasheet, PDF (5/8 Pages) Fairchild Semiconductor – QFET P-CHANNEL | |||
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QFET P-CHANNEL
FQPF3P20
Fig 12. Gate Charge Test Circuit & Waveform
Same Type
VGS
50K
as DUT
Qg
12V
200nF
300nF
-10V
VGS
VDS
Qgs
Qgd
DUT
-3mA
Charge
-10V
-10V
Fig 13. Resistive Switching Test Circuit & Waveforms
VDS
RG
RL
VDD
( 0.5 rated VDS )
DUT
Vin
td(on)
t on
tr
10%
VDS
90%
t off
td(off)
tf
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
VDS
ID
L
VDD
EAS
=
--1--
2
LL IAS2
BVDSS
--------------------
BVDSS -- VDD
tp
Time
RG
VDD
VDS (t)
DUT
IAS
BVDSS
ID (t)
5
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