STD18N55M5 Datasheet, PDF (9/22 Pages) STMicroelectronics – N-channel 550 V, 0.18 Ω, 13 A, MDmesh™ V Power MOSFET in D²PAK, DPAK, TO-220FP and TO-220

STB18N55M5, STD18N55M5, STF18N55M5, STP18N55M5
3
Test circuits
Test circuits
Figure 18. Switching times test circuit for
resistive load
Figure 19. Gate charge test circuit
VDD
VD
VGS
RG
PW
RL
2200
μF
D.U.T.
3.3
μF _VDD
12V
47kΩ
1kΩ
100nF
Vi=20V=VGMAX
2200
μF
IG=CONST
2.7kΩ
100Ω
D.U.T.
VG
47kΩ
PW
AM01468v1
1kΩ
AM01469v1
Figure 20. Test circuit for inductive load
Figure 21. Unclamped inductive load test
switching and diode recovery times
circuit
G
25 Ω
A
D
D.U.T.
S
B
AA
FAST
DIODE
L=100μH
B
3.3
B
μF
D
G
RG
S
1000
μF
VDD
Vi
L
VD
2200
3.3
μF
μF
VDD
ID
D.U.T.
Pw
AM01470v1
AM01471v1
Figure 22. Unclamped inductive waveform Figure 23. Switching time waveform
V(BR)DSS
VD
Id
90%Vds
Concept waveform for Inductive Load Turn-off
90%Id
VDD
IDM
ID
VDD
Vgs
90%Vgs on
10%Vds
Vds
Vgs(I(t))
AM01472v1
Tdelay-off
Trise
Tfall
Tcross -over
10%Id
AM05540v1
Doc ID 17078 Rev 2
9/22