2Electrical characteristics
(TCASE = 25 °C unless otherwise specified)
Table 4. On/off states
Symbol Parameter Test conditions Min. Typ. Max. Unit
V(BR)DSS
Drain-source ID = 1 mA, VGS = 0 V 900 V
Breakdown voltage
IDSS Zero gate voltage drain
current
VGS = 0 V, VDS = 900 V 1 µA
VGS = 0 V, VDS = 900 V, TC = 125 °C (1) 50 µA
IGSS Gate body leakage
current VDS = 0 V, VGS = ±20 V ±10 µA
VGS(th) Gate threshold voltage VDS = VGS, ID = 100 µA 3 3.75 4.5 V
RDS(on) Static drain-source on
resistance VGS = 10 V, ID = 2.9 A 1.56 2 Ω
1. Defined by design, not subject to production test.
Table 5. Dynamic
Symbol Parameter Test conditions Min. Typ. Max. Unit
Ciss Input capacitance
VDS = 25 V, f = 1 MHz, VGS = 0 V
1350
pF
Coss Output capacitance 130
Crss Reverse transfer
capacitance 26
Coss eq. (1) Equivalent output
capacitance VGS = 0 V, VDS = 0 V to 720 V 70 pF
td(on) Turn-on delay time
VDD = 450 V, ID = 3 A, RG = 4.7 Ω,
VGS = 10 V (see Figure 17. Test circuit for
resistive load switching times and Figure
22. Switching time waveform)
17
ns
trRise time 20
tr(off) Turn-off delay time 45
trFall time 20
QgTotal gate charge VDD = 720 V, ID = 5.8 A, VGS = 0 to 10 V
(see Figure 18. Test circuit for gate charge
behavior)
46.5 60.5
nC
Qgs Gate-source charge 8.5
Qgd Gate-drain charge 25
tr(Voff) Off-voltage rise time VDD = 720 V, ID = 5.8 A, RG = 4.7 Ω,
VGS = 10 V (see Figure 19. Test circuit for
inductive load switching and diode recovery
times)
11
ns
trFall time 12
tcCross-over time 20
1. Coss eq. is defined as a constant equivalent capacitance giving the same charging time as Coss when VDS increases from 0
to 80% VDSS.
STB6NK90ZT4, STP6NK90Z, STP6NK90ZFP, STW7NK90Z
Electrical characteristics
DS2985 - Rev 6 page 3/26