AO4710
Gate Charge Test Circuit & Waveform
Vgs
Qg
10V
20A
+
VD
C
-
DUT
Vgs
Ig
+
VDC
Vds
Qgs
Q
gd
-
10A
5A
I
S
=1A
Charge
Resistive Switching Test Circuit & Waveforms
R
L
Vds
Vds
Vgs
Rg
125ºC
T
DU
+
VD
C
90%
Vdd
di/dt=800A/us
125ºC
10%
-
25ºC
125ºC
Vgs
Qrr
Vgs
t
d(on)
t
r
t
on
trr
t
d(off)
t
off
t
f
25ºC
25ºC
Irm
25ºC
S
125ºC
Unclamped Inductive Switching (UIS) Test Circuit & Waveforms
L
Vds
Id
Vgs
Rg
Is=20A
E
AR
1/2 LI
=
Vds
Vgs
2
AR
BV
DSS
VDC
+
Vdd
-
Id
125ºC
Is=20A
I
AR
125ºC
DU
T
25ºC
Vgs
Vgs
25ºC
Diode Recovery Test Circuit & Waveforms
Vds +
25ºC
Qrr
Irm
125º
trr
25ºC
S
Q
rr
= - Idt
Vgs
125ºC
DUT
Vds -
Isd
Vgs
L
Isd
I
F
dI/dt
I
RM
t
rr
VD
C
+
Vdd
-
Vds
Vdd
Ig
Alpha & Omega Semiconductor, Ltd.
www.aosmd.com
AOSMD [ ALPHA & OMEGA SEMICONDUCTORS ]
