STDLED656 Datasheet, PDF (9/22 Pages) STMicroelectronics – Gate charge minimized

STDLED656, STFILED656, STPLED656, STULED656
3
Test circuits
Test circuits
Figure 17. Switching times test circuit for
resistive load
Figure 18. Gate charge test circuit
VDD
12V
47kΩ
1kΩ
100nF
RL
2200
3.3
μF
μF _VDD
IG=CONST
VD
Vi=20V=VGMAX
100Ω
D.U.T.
VGS
RG
t(s) ^PW
D.U.T.
2200
μF
2.7kΩ
VG
47kΩ
uc _PW
rod ^AM01468v1
1kΩ
AM01469v1
P _{Figure 19. Test circuit for inductive load}
te ^{switching and diode recovery times}
Figure 20. Unclamped inductive load test circuit
Obsole _G
t(s) ^{- 25Ω}
A
D
D.U.T.
S
B
AA
FAST
DIODE
L=100μH
B
3.3
B
μF
D
G
uc ^RG
S
1000
μF
VDD
Vi
L
VD
2200
3.3
μF
μF
VDD
ID
D.U.T.
Prod _AM01470v1
lete ^{Figure 21. Unclamped inductive waveform}
so ^V(BR)DSS
Ob ^VD
Pw
AM01471v1
Figure 22. Switching time waveform
ton
tdon
tr
toff
tdoff tf
VDD
IDM
ID
0
VDD
90%
10% VDS
90%
VGS
90%
10%
AM01472v1
0
10%
AM01473v1
DocID024429 Rev 1
9/22