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STB21NK50Z Datasheet, PDF (5/13 Pages) STMicroelectronics – N-channel 500 V, 0.23 Ω, 17 A, D2PAK Zener-protected superMESH™ Power MOSFET
STB21NK50Z
Electrical characteristics
Table 7.
Symbol
Switching times
Parameter
td(on)
tr
Turn-on delay time
Rise time
td(off)
tf
Turn-off delay time
Fall time
Test conditions
VDD= 250 V, ID= 8.5 A,
RG= 4.7Ω, VGS= 10 V
(see Figure 16)
VDD= 250 V, ID= 8.5 A,
RG= 4.7 Ω, VGS=10 V
(see Figure 16)
Min. Typ. Max. Unit
28
ns
20
ns
70
ns
15
ns
Table 8.
Symbol
Gate-source Zener diode
Parameter
Test conditions
Min. Typ. Max. Unit
BVGSO(1)
Gate-source breakdown voltage
Igs=±1 mA
(open drain)
30
V
1. The built-in back-to-back Zener diodes have specifically been designed to enhance not only the device’s
ESD capability, but also to make them safely absorb possible voltage transients that may occasionally be
applied from gate to source. In this respect the Zener voltage is appropriate to achieve an efficient and
cost-effective intervention to protect the device’s integrity. These integrated Zener diodes thus avoid the
usage of external components.
Table 9. Source drain diode
Symbol
Parameter
Test conditions
ISD Source-drain current
ISDM(1) Source-drain current (pulsed)
VSD(2) Forward on voltage
ISD= 17 A, VGS=0
trr
Qrr
IRRM
Reverse recovery time
Reverse recovery charge
Reverse recovery current
ISD= 17 A,
di/dt = 100 A/µs,
VR= 100 V
(see Figure 16)
trr
Qrr
IRRM
Reverse recovery time
Reverse recovery charge
Reverse recovery current
ISD= 17 A,
di/dt = 100 A/µs,
VR= 100 V, Tj=150 °C
(see Figure 16)
1. Pulse width limited by safe operating area
2. Pulsed: pulse duration=300µs, duty cycle 1.5%
Min Typ. Max Unit
17 A
68 A
1.6 V
355
ns
3.90
µC
22
A
440
ns
5.72
µC
25
A
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