SFP2955 데이터 시트보기 (PDF) - Fairchild Semiconductor
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SFP2955 Datasheet PDF : 7 Pages
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P-CHANNEL
POWER MOSFET
Fig 12. Gate Charge Test Circuit & Waveform
SFP2955
“ Current Regulator ”
50KΩ
12V
200nF
300nF
VGS
Same Type
as DUT
VGS
-10V
VDS
Qgs
DUT
-3mA
R1
R2
Current Sampling (IG) Current Sampling (ID)
Resistor
Resistor
Qg
Qgd
Charge
-10V
Vout
Vin
RG
Fig 13. Resistive Switching Test Circuit & Waveforms
RL
VDD
( 0.5 rated VDS )
DUT
t on
td(on)
tr
Vin 10%
t off
td(off)
tf
Vout
90%
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
VDS
Vary tp to obtain
required peak ID
RG
LL
ID
C
VDD
DUT
EAS =
--1--
2
LL IAS2
BVDSS
--------------------
BVDSS -- VDD
tp
Time
VDD
ID (t)
VDS (t)
-10V
tp
IAS
BVDSS
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