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| IRF750A Datasheet, PDF (5/7 Pages) Fairchild Semiconductor – Advanced Power MOSFET | |||
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N-CHANNEL
POWER MOSFET
Fig 12. Gate Charge Test Circuit & Waveform
IRF750A
* Current Regulator â
50Kâ¦
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 )
Vout
90%
DUT
Vin 10%
td(on)
tr
t on
td(off)
tf
t off
Vary tp to obtain
required peak ID
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
LL
VDS
ID
EAS =
--1--
2
LL IAS2
BVDSS
--------------------
BVDSS -- VDD
BVDSS
IAS
10V
RG
tp
C
VDD
DUT
VDD
ID (t)
tp
VDS (t)
Time
5
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