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| IRF840PBF Datasheet, PDF (5/6 Pages) International Rectifier – HEXFET POWER MOSFET | |||
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IRF840PBF
®
Fig. 12. Gate Charge Test Circuit & Waveforms
50K â¦
Same as
V GS
DUT
12V
200nF
10V
300nF
VDS
Qgs
VGS
DUT
1mA
Qg
Qgd
Charge
Fig 13. Switching Time Test Circuit & Waveforms
VDSS
10V
Pulse
RG
Generator
RL
VDS
90%
VDD
( O.5 rated VDD )
DUT
Vin 10%
td(on)
tr
t(on)
td(off) tf
t(off)
Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms
VDS
10V
RG
L
DUT
BVDSS
IAS
Eas = 1 LIAS 2
2
BVDSS
BVDSS -VDD
ID (t)
tp
VDS (t)
Rev.05
© 2006 Thinki Semiconductor Co., Ltd.
Page 5/6
http://www.thinkisemi.com/
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