
AON7423
Gate Charge Test Circuit & Waveform
Vgs
Qg
-10V
VDC
VDC
Vds
Qgs
Qgd
DUT
Vgs
Ig
RL
Resistive Switching Test Circuit & Waveforms
Charge
Vds
t on
t off
Vgs
t d(on)
t r
t d(off)
t f
Vgs
DUT
VDC
Vdd
90%
Rg
Vgs
Vds
Id
L
Vds
Unclamped Inductive Switching (UIS) Test Circuit & Waveforms
2
E AR = 1/2 LI AR
Vds
10%
Vgs
Vgs
VDC
Vdd
BV DSS
Vgs
Vds +
Rg
DUT
Id
Vgs
Diode Recovery Test Circuit & Waveforms
Q rr = - Idt
I AR
DUT
Vgs
Vds -
Ig
Isd
Vgs
L
VDC + Vdd
-
-Isd
-Vds
-I F
dI/dt
-I RM
t rr
Vdd
Rev 0: Nov. 2011
www.aosmd.com
Page 6 of 6