A Product Line of
Diodes Incorporated
DMP4051LK3
Test Circuits
Current
regulator
Q G
12V
0.2 F
50k
Same as
D.U.T
V G
Q GS
Q GD
Charge
I G
V GS
D.U.T
V DS
I D
Basic gate charge waveform
V DS
Gate charge test circuit
90%
10%
R G
V GS
R D
V DS
V DD
V GS
Pulse width
1 S
Duty factor 0.1%
t r
t (on)
t d(off)
t r
t (on)
t d(on)
Switching time waveforms
Switching time test circuit
DMP4051LK3
Document Number DS32114 Rev. 3 - 2
7 of 9
www.diodes.com
February 2012
? Diodes Incorporated
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