SCT2120AF_17 Datasheet, PDF (12/14 Pages) Rohm – N-channel SiC power MOSFET

SCT2120AF
Measurement circuits
Fig.1-1 Switching Time Measurement Circuit
VGS
RG
ID
RL
VDS
D.U.T.
VDD
Fig.2-1 Gate Charge Measurement Circuit
VGS
IG(Const.)
ID
RL
VDS
D.U.T.
VDD
Datasheet
Fig.1-2　Switching Waveforms
Pulse width
50%
VGS
10%
VDS
10%
90% _50%
10%
td(on)
90%
tr
td(off)
90%
tf
ton
toff
Fig.2-2 Gate Charge Waveform
VG
VGS
Qgs
Qg
Qgd
Fig.3-1 Switching Energy Measurement Circuit
Charge
Fig.3-2 Switching Waveforms
Same type
devicDe.Uas.T.
D.U.T.
RG
I_D
L
IF
VDD
DRIVER
D^M.^OU^SF.^ET^T .
E_on = I_D×V_DS
V_DS
I_rr
E_off = I_D×V_DS
V_surge
I_D
Fig.4-1 Reverse Recovery Time Measurement Circuit Fig.4-2 Reverse Recovery Waveform
D._DU_.U.T_.T._.
RG
L
IF
DRIVER
MOSFET
VDD
IF
trr
0
Irr 10%
Irr
drr / dt
Irr 90%
Irr 100%
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12/12
2017.07 - Rev.E